1,719 results match your criteria Human Movement Science [Journal]


Effects of vision and cognitive load on anticipatory and compensatory postural control.

Hum Mov Sci 2019 Mar 12. Epub 2019 Mar 12.

Education College, Zhejiang University, China; Center for Psychological Sciences at Zhejiang University, Zhejiang University, China. Electronic address:

This study assessed the effects of vision and cognitive load on anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) in response to an externally triggered postural perturbation. A ball-hitting test was repeated under different visual conditions (eyes open, EO; eyes closed, EC) and cognitive loads (no load, 3-subtraction task, time-limited 3-subtraction task). Data were collected separately for I) surface electromyography from the right side of the biceps brachii (BIC) and erector spinae (ES) to detect the latency and response intensity (RI); and II) displacement of the centre of pressure (ΔCOP) to detect the standard deviation (ΔCOP) and maximum value (ΔCOP) in the anterior-posterior direction. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183056
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http://dx.doi.org/10.1016/j.humov.2019.02.011DOI Listing
March 2019
1 Read

Unstable coupling of body sway with imposed motion precedes visually induced motion sickness.

Hum Mov Sci 2019 Mar 12. Epub 2019 Mar 12.

School of Kinesiology, University of Minnesota, USA. Electronic address:

Motion sickness is preceded by differences in the quantitative kinematics of body sway between individuals who (later) become sick and those who do not. In existing research, this effect has been demonstrated only in measures of body sway, relative to the earth. However, body sway can become coupled with imposed oscillatory motion of the illuminated environment, and the nature of this coupling may differ between individuals who become sick and those who do not. Read More

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http://dx.doi.org/10.1016/j.humov.2019.03.006DOI Listing

The effect of using paddles on hand propulsive forces and Froude efficiency in arm-stroke-only front-crawl swimming at various velocities.

Hum Mov Sci 2019 Mar 9;64:378-388. Epub 2019 Mar 9.

Sports and Life Science, National Institute of Fitness and Sports in Kanoya, 891-2393 Shiromizu-cho 1, Kanoya, Kagoshima, Japan. Electronic address:

Through pressure measurement and underwater motion capture analysis, this study aimed to elucidate the effects of hand paddles on hand propulsive forces, mechanical power, and Froude efficiency in arm-stroke-only front-crawl swimming at various velocities. Eight male swimmers swam under two conditions in randomized order, once using only their hands and once aided by hand paddles on both hands. Each participant swam 10 times a distance of 16 m in each condition, for a total of 20 trials. Read More

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http://dx.doi.org/10.1016/j.humov.2019.03.007DOI Listing

Anticipatory postural adjustments during a Fitts' task: Comparing young versus older adults and the effects of different foci of attention.

Hum Mov Sci 2019 Mar 8;64:366-377. Epub 2019 Mar 8.

Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada; Health, Leisure, and Human Performance Research Institute, University of Manitoba, Winnipeg, Canada.

Anticipatory postural adjustments (APAs) are an integral part of standing balance. Previous research with balance control has shown that adopting an external focus of attention, compared to an internal focus of attention, yields better performance during motor skills. Despite the importance of APAs, especially among older adults, and the potential benefits of adopting an external focus of attention, studies investigating methods for improving APAs are limited. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.019DOI Listing

Reduced graphomotor procedural learning in children and adolescents with ADHD.

Hum Mov Sci 2019 Mar 7. Epub 2019 Mar 7.

University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada.

Purpose: The present study sought to determine if children and adolescents with ADHD demonstrate reduced procedural learning of a graphomotor program.

Method: Thirty-two children and adolescents between age 9 and 15 with (n = 16) and without ADHD (n = 16) participated in the study. Each group of participants practiced a novel grapheme on a digitizing tablet 30 times. Read More

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http://dx.doi.org/10.1016/j.humov.2018.06.018DOI Listing

Rhythmic priming across effector systems: A randomized controlled trial with Parkinson's disease patients.

Hum Mov Sci 2019 Mar 7;64:355-365. Epub 2019 Mar 7.

Music and Health Science Research Collaboratory, Faculty of Music, University of Toronto, Toronto, Ontario, Canada. Electronic address:

This study investigated the immediate effects of auditory-motor entrainment across effector systems by examining whether Rhythmic Auditory Stimulation training of arm or finger movements would modulate gait speed. Forty-one participants with idiopathic Parkinson's Disease were randomly assigned to 3 groups. Participants in the finger-tapping group tapped in synchrony with a metronome set to 20% faster pace than the pre-training walking cadence, whereas participants in the other group were asked to swing both arms in an alternating motion in synchrony with the metronome. Read More

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http://dx.doi.org/10.1016/j.humov.2019.03.001DOI Listing

The effect of aging on termination of voluntary movement while standing: A study on community-dwelling older adults.

Hum Mov Sci 2019 Mar 7;64:347-354. Epub 2019 Mar 7.

Department of Physical Therapy, School of Rehabilitation, Tokyo Kasei University, Sayama, Japan.

For older adults, falls often occur when transitioning from motion to a complete stop, as the motor control required during this phase is very complex and challenging. The purpose of this study was to clarify the effect of aging on the motor control required to terminate motion. Twenty-five healthy older adults (aged >65 years) and 25 healthy young adults (20-23 years) performed a rapid stopping task while standing on a force plate. Read More

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http://dx.doi.org/10.1016/j.humov.2019.03.003DOI Listing

Differences in timing and magnitude of lumbopelvic rotation during active and passive knee extension in sitting position in people with and without low back pain: A cross-sectional study.

Hum Mov Sci 2019 Mar 6;64:338-346. Epub 2019 Mar 6.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Repetitive lumbopelvic rotation (LPR) during active limb movements has been indicated as a factor that contributes to low back pain (LBP). Prior studies suggest that people with LBP demonstrate greater and earlier LPR during limb movements in prone. We examined timing and magnitude of LPR during sitting active knee extension in people with and without LBP. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.012DOI Listing
March 2019
3 Reads

Sex comparisons of the bilateral deficit in proximal and distal upper body limb muscles.

Hum Mov Sci 2019 Mar 2;64:329-337. Epub 2019 Mar 2.

The University of Oklahoma, Department of Health and Exercise Science, Norman, OK 73019, USA.

Bilateral deficit (BLD) describes a phenomenon that the force produced during maximal simultaneous bilateral contraction is lower than the sum of those produced unilaterally. The aim of this study was to examine the potential sex-related differences in BLD in upper body proximal and distal limb muscles. Ten men and eight women performed single-joint maximal contractions with their elbow flexors and index finger abductors at separate laboratory visits, during which the maximal isometric voluntary contractions (MVICs) were performed unilaterally and bilaterally with a randomized order in the designated muscle group. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.017DOI Listing
March 2019
3 Reads

Ankle dorsiflexion range of motion is associated with kinematic but not kinetic variables related to bilateral drop-landing performance at various drop heights.

Hum Mov Sci 2019 Mar 2;64:320-328. Epub 2019 Mar 2.

School of Sport, Health and Applied Science, St Mary's University, Twickenham, London, UK; School of Science and Technology, University of New England, NSW, Australia.

Limited evidence is available concerning ankle dorsiflexion range of motion (DF ROM) and its relationship with landing performance from varying drop heights. The aim of this investigation was to determine the relationship between ankle DF ROM and both kinetic and kinematic variables measured during bilateral drop-landings from 50%, 100% and 150% of countermovement jump height. Thirty-nine participants were measured for their ankle DF ROM using the weight-bearing lunge test, after which five bilateral drop-landings were performed from 50%, 100% and 150% of maximal countermovement jump height. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.016DOI Listing

Practice variability promotes an external focus of attention and enhances motor skill learning.

Hum Mov Sci 2019 Mar 1;64:307-319. Epub 2019 Mar 1.

University of Nevada, Las Vegas, USA.

Variability in practice has been shown to enhance motor skill learning. Benefits of practice variability have been attributed to motor schema formation (variable versus constant practice), or more effortful information processing (random versus blocked practice). We hypothesized that, among other mechanisms, greater practice variability might promote an external focus of attention on the intended movement effect, while less variability would be more conducive to a less effective internal focus on body movements. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.015DOI Listing
March 2019
1 Read

Cancelling discrete and stopping ongoing rhythmic movements: Do they involve the same process of motor inhibition?

Hum Mov Sci 2019 Feb 27;64:296-306. Epub 2019 Feb 27.

Centre de Recherche Cerveau et Cognition - UMR 5549 CNRS, Pavillon Baudot CHU Purpan, BP 25202 - 31052 Toulouse Cedex, France; Université Toulouse 3 Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.

Motor inhibition is considered to be an important process of executive control and to be implicated in numerous activities in order to cancel prepared actions and, supposedly, to suppress ongoing ones. Usually, it is evaluated using a "stop-signal task" in which participants have to inhibit prepared discrete movements. However, it is unknown whether other movement types involve the same inhibition process. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.010DOI Listing
February 2019

Influence of target uncertainty on reaching movements while standing in stroke.

Hum Mov Sci 2019 Feb 27;64:283-295. Epub 2019 Feb 27.

Graduate Program in Physical Therapy, Universidade Cidade de São Paulo, Brazil; Department of Kinesiology, The Pennsylvania State University, University Park, USA; Department of Neurology, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey, PA, USA. Electronic address:

Stroke individuals frequently have balance problems and impaired arm movements that affect their daily activities. We investigated the influence of target uncertainty and the side of the brain lesion on the performance of arm movements and postural adjustments during reaching in a standing position by stroke individuals. Participants stood on force plates and reached a target displayed on the center of a monitor screen under conditions differentiated by the prior knowledge of the target location at the beginning of the movement. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.014DOI Listing
February 2019

Modulation of tendon tap reflex activation of soleus motor neurons with reduced stability tandem stance.

Hum Mov Sci 2019 Feb 27;64:274-282. Epub 2019 Feb 27.

Kinesiology Program, Dept. of Health and Human Development, Western Washington University, 516 High Street, Bellingham, WA 98225-9067, USA. Electronic address:

Reduced stability while standing typically decreases the soleus muscle Hoffmann (H-) reflex amplitude, purportedly to prevent the Ia afferent signal from excessively activating spinal motor neurons during the unstable stance. H-reflex measures, however, by excluding the spindle do not reflect the actual effect of the Ia pathway (i.e. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.013DOI Listing
February 2019

Dynamic simulation of flat water kayaking using a coupled biomechanical-smoothed particle hydrodynamics model.

Hum Mov Sci 2019 Feb 26;64:252-273. Epub 2019 Feb 26.

CSIRO Data61, Australia.

Kayak racing performance is known to be dependent on technique, strength and equipment, but the relationship between these factors and performance is not well understood. Complete experimental measures of stroke technique and the interactions between the water and the paddle and the boat are not practical in a racing environment. Instead, simulation using computational fluid dynamics can be used to study this system. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.003DOI Listing
February 2019

Task specificity and the timing of discrete aiming movements.

Hum Mov Sci 2019 Feb 22;64:240-251. Epub 2019 Feb 22.

Department of Kinesiology, 337 Ramsey, University of Georgia, Athens, GA 30602, USA.

In discrete aiming movements the task criteria of time-minimization to a spatial target (e.g., Fitts, 1954) and time-matching to a spatial-temporal goal (e. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.009DOI Listing
February 2019

Graphonomics: The study of handwriting and drawing skills to understand motor behavior and learning across the life span.

Hum Mov Sci 2019 Feb 21. Epub 2019 Feb 21.

Louisiana State University, School of Kinesiology, 112 HP Long Fieldhouse, Baton Rouge, LA 70803, USA. Electronic address:

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http://dx.doi.org/10.1016/j.humov.2019.02.007DOI Listing
February 2019

Synergistic influences of sensory and central stimuli on non-voluntary rhythmic arm movements.

Hum Mov Sci 2019 Feb 21;64:230-239. Epub 2019 Feb 21.

Laboratory of Neuromotor Physiology, IRCCS Fondazione Santa Lucia, Rome, Italy.

In recent years, neuromodulation of the cervical spinal circuitry has become an area of interest for investigating rhythmogenesis of the human spinal cord and interaction between cervical and lumbosacral circuitries, given the involvement of rhythmic arm muscle activity in many locomotor tasks. We have previously shown that arm muscle vibrostimulation can elicit non-voluntary upper limb oscillations in unloading body conditions. Here we investigated the excitability of the cervical spinal circuitry by applying different peripheral and central stimuli in healthy humans. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.008DOI Listing
February 2019

An examination of muscle force control in individuals with a functionally unstable ankle.

Hum Mov Sci 2019 Feb 20;64:221-229. Epub 2019 Feb 20.

TAVANA LLC, United States.

Previous studies suggest that functional ankle instability (FAI) may be associated with deficits in the ability to sense muscle forces. We tested individuals with FAI to determine if they have reduced ability to control ankle muscle forces, which is a function of force sense. Our test was performed isometrically to minimize the involvement of joint position sense and kinesthesia. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.005DOI Listing
February 2019

Effects of foot progression angle adjustment on external knee adduction moment and knee adduction angular impulse during stair ascent and descent.

Hum Mov Sci 2019 Feb 19;64:213-220. Epub 2019 Feb 19.

Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong. Electronic address:

Foot progression angle adjustment was shown to reduce external knee adduction moment (EKAM) and knee adduction angular impulse (KAAI) during level ground walking. However, evidence on effects of foot progression angle adjustment on the above surrogate measures of medial knee loading during stair climbing is limited. Hence, this study examined the effects of toe-in and toe-out gait on EKAM and KAAI during stair ascent and descent. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.004DOI Listing
February 2019
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Shoulder kinematics and kinetics of team handball throwing: A scoping review.

Hum Mov Sci 2019 Feb 18;64:203-212. Epub 2019 Feb 18.

Section for Sports Science, Department of Public Health, Aarhus University, Dalgas Avenue 4, 8000 Aarhus C, Denmark. Electronic address:

In recent years a number of studies have investigated shoulder biomechanics in handball throwing. The purpose of this scoping review is to summarize the current handball research in terms of shoulder joint kinematics and kinetics and identify gaps in the current research. Nineteen articles relevant to this topic were identified and included. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.006DOI Listing
February 2019

Foot and shoe responsible for majority of soft tissue work in early stance of walking.

Hum Mov Sci 2019 Feb 12;64:191-202. Epub 2019 Feb 12.

Dept. of Mechanical Engineering, Vanderbilt University, Nashville, TN, USA; Dept. of Physical Medicine & Rehabilitation, Vanderbilt University, Nashville, TN, USA; Dept. of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.

Soft tissues located throughout the human body are known to perform substantial mechanical work through wobbling and deforming, particularly following foot impacts with the ground. Yet, it is not known which specific tissues in the body are responsible for the majority of the soft tissue work. The purpose of this study was to quantify how much of the soft tissue work after foot contact was due to the foot and shoe, vs. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.008DOI Listing
February 2019

Hip muscle response to a fatiguing run in females with iliotibial band syndrome.

Hum Mov Sci 2019 Feb 8;64:181-190. Epub 2019 Feb 8.

Leon Root, MD Motion Analysis Laboratory, Hospital for Special Surgery, 510 East 73rd Street, New York, NY 10021, USA.

Impaired hip muscle function has often been cited as a contributing factor to the development of iliotibial band syndrome (ITBS), yet our full understanding of this relationship is not well established. The objective of this study was to examine the effect of fatigue on hip abductor muscle function in females with ITBS. Female runners, 20 healthy and 12 with a current diagnosis of ITBS, performed a treadmill run to fatigue. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.002DOI Listing
February 2019
2 Reads

Effects of attentional focus on movement coordination complexity.

Hum Mov Sci 2019 Feb 6;64:171-180. Epub 2019 Feb 6.

Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, CEP: 31270-901, Brazil.

Attentional focus affects performance and learning of motor tasks. An external attentional focus (on the effects of movement) can lead to more efficient and effective movements compared to an internal focus (on body movement itself). According to the "constrained action hypothesis", an external focus facilitates fast and reflexive movement control while an internal focus leads to disruption of automatic coordination processes. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.012DOI Listing
February 2019

Inter-joint coordination patterns differ between younger and older runners.

Hum Mov Sci 2019 Feb 6;64:164-170. Epub 2019 Feb 6.

Nike World Headquarters, Beaverton, OR, United States.

Older runners are at greater risk of certain running-related injuries. Previous work demonstrated that aging influences running biomechanics, and suggest a compensatory relation between changes in the proximal and distal joints. Previous comparisons of interjoint coordination strategies between young and older runners could potentially have missed relevant differences by averaging coordination measures across time. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183032
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http://dx.doi.org/10.1016/j.humov.2019.01.014DOI Listing
February 2019
5 Reads

Does limiting pre-movement time during practice eliminate the benefit of practicing while expecting to teach?

Hum Mov Sci 2019 Feb 6;64:153-163. Epub 2019 Feb 6.

School of Kinesiology, Auburn University, 301 Wire Road, Auburn University, AL, 36849, USA; Center for Neuroscience, Auburn University, USA. Electronic address:

Past research has revealed practicing and studying a motor skill with the expectation of teaching it to another person increases the amount of time participants spend preparing for movement during practice trials of the skill. However, it is unknown whether the increased motor preparation time explains the benefit of expecting to teach on motor learning. To address this question, we had participants practice golf putting with the expectation of teaching the skill to another participant the following day or the expectation of being tested on the skill the following day. Read More

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http://dx.doi.org/10.1016/j.humov.2018.11.017DOI Listing
February 2019
5 Reads

Oculomotor behavior and the level of repetition in motor practice: Effects on pupil dilation, eyeblinks and visual scanning.

Hum Mov Sci 2019 Feb 5;64:142-152. Epub 2019 Feb 5.

Department of Physical Education, Universidade Federal de Minas Gerais, 6627 Av. Presidente Carlos Luz - Pampulha, Belo Horizonte, MG 31270-901, Brazil. Electronic address:

The benefits of less repetitive practice in motor learning have been explained by the increased demand for memory processes during the execution of motor skills. Recently, a new perspective associating increased demand for perception with less repetitive practice has also been proposed. Augmented information gathering and visual scanning characterize this higher perceptual demand. Read More

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http://dx.doi.org/10.1016/j.humov.2019.02.001DOI Listing
February 2019
1 Read

Neuromuscular control in individuals with chronic ankle instability: A comparison of unexpected and expected ankle inversion perturbations during a single leg drop-landing.

Hum Mov Sci 2019 Feb 2;64:133-141. Epub 2019 Feb 2.

Neuromechanics Laboratory, Department of Kinesiology, Mississippi State University, PO Box 6186, Mississippi State, MS, USA.

While neuromuscular control deficits during inversion perturbations in chronic ankle instability (CAI) cohorts are well documented in the literature, anticipatory motor control strategies to inversion perturbations in CAI are largely unknown. The purpose of this study was to examine neuromuscular control and ankle kinematics in individuals with CAI (n = 15) and matched controls (n = 15) during unexpected and expected single leg drop-landings onto a tilted surface rotated 20° in the frontal plane. Muscle activity from 200 ms pre- to post-landing was recorded from the tibialis anterior (TA), medial gastrocnemius (MG), peroneus longus (PL) and peroneus brevis (PB). Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.013DOI Listing
February 2019
3 Reads

Exploring gait adaptations to perturbed and conventional treadmill training in Parkinson's disease: Time-course, sustainability, and transfer.

Hum Mov Sci 2019 Jan 31;64:123-132. Epub 2019 Jan 31.

Department of Sport Science and Sport, Division of Exercise and Health, Friedrich-Alexander University (FAU) Erlangen-Nürnberg, Gebbertstrasse 123b, 91058 Erlangen, Germany.

Background: Gait impairment is a major motor symptom in Parkinson's disease (PD), and treadmill training is an effective non-pharmacological treatment option.

Research Question: In this study, the time course, sustainability and transferability of gait adaptations to treadmill training with and without additional postural perturbations were investigated.

Methods: 38 PD patients (Hoehn & Yahr 1-3. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.007DOI Listing
January 2019

Neck posture is influenced by anticipation of stepping.

Hum Mov Sci 2019 Jan 30;64:108-122. Epub 2019 Jan 30.

Department of Psychology & Communication Studies, University of Idaho, Moscow, ID, United States.

Background: Postural deviations such as forward head posture (FHP) are associated with adverse health effects. The causes of these deviations are poorly understood. We hypothesized that anticipating target-directed movement could cause the head to get "ahead of" the body, interfering with optimal head/neck posture, and that the effect may be exacerbated by task difficulty and/or poor inhibitory control. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.010DOI Listing
January 2019

Minimal detectable change of kinematic and spatiotemporal parameters in patients with chronic stroke across three sessions of gait analysis.

Hum Mov Sci 2019 Jan 30;64:101-107. Epub 2019 Jan 30.

Inserm Unit 1179, Team 3: Technologies and Innovative Therapies Applied to Neuromuscular Diseases, UVSQ, CIC 805, Physiology-Functional Testing Ward, AP-HP, Raymond Poincaré Teaching Hospital, Garches, France. Electronic address:

Three-dimensional gait analysis is the gold standard for gait-assessment in patients with stroke. This technique is commonly used to assess the effect of treatment on gait parameters. In clinical practice, three gait analyses are usually carried out (baseline, after treatment and follow-up), the objectives were to define the reproducibility and the Minimum Detectable Change (MDC) for gait parameters in stance and swing measured using 3D-gait analysis, and to assess changes in MDC across three repeated 3D-gait analyses. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.011DOI Listing
January 2019
2 Reads

Control of oscillatory force tasks: Low-frequency oscillations in force and muscle activity.

Hum Mov Sci 2019 Jan 25;64:89-100. Epub 2019 Jan 25.

Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA. Electronic address:

Force variability during steady force tasks is strongly related to low-frequency oscillations (<0.25 Hz) in force. However, it is unknown whether low-frequency oscillations also contribute to the variability of oscillatory force tasks. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.009DOI Listing
January 2019

The effect of running on foot muscles and bones: A systematic review.

Hum Mov Sci 2019 Jan 22;64:75-88. Epub 2019 Jan 22.

Institute for Health and Sport (IHeS), Victoria University, Melbourne, Australia.

Despite the widespread evidence of running as a health-preserving exercise, little is known concerning its effect on the foot musculature and bones. While running may influence anatomical foot adaptation, it remains unclear to what extent these adaptations occur. The aim of this paper is to provide a systematic review of the studies that investigated the effects of running and the adaptations that occur in foot muscles and bones. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.006DOI Listing
January 2019

Evaluating movement performance: What you see isn't necessarily what you get.

Hum Mov Sci 2019 Jan 16;64:67-74. Epub 2019 Jan 16.

28 Division St, Kingston, Ontario K7L 3N6, Canada. Electronic address:

With the goal of reducing injury and enhancing performance, movement screening tools score an individual's movements against a standard and because it is a predictor of injury symmetry is often included in the score. Movement quality screening tools only consider kinematic asymmetry, which may underestimate the degree of asymmetry present during movement. Consider joint forces: if these forces are atypical, additional stress is created and control is reduced, which can lead to injury if the asymmetry is not addressed. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.003DOI Listing
January 2019
10 Reads

Effects of scapular retraction/protraction position and scapular elevation on shoulder girdle muscle activity during glenohumeral abduction.

Hum Mov Sci 2019 Jan 16;64:55-66. Epub 2019 Jan 16.

University of Perugia, Department of Experimental Medicine, Piazza Gambuli 1, 06132 Perugia, Italy. Electronic address:

According to scapulohumeral rhythm, shoulder abduction is followed through scapular upward rotation to ensure joint mobility and stability. Of interest, the shoulder abduction can be performed holding the scapula in different positions and in association with scapular elevation, with possible effects on shoulder muscle activity. Therefore, the aim of the study was to analyze the activity of relevant shoulder muscles and the activity ratios between the scapulothoracic muscles, during shoulder abduction performed in different combinations of scapular position (neutral, retracted, protracted) and scapular elevation. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183047
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http://dx.doi.org/10.1016/j.humov.2019.01.005DOI Listing
January 2019
2 Reads

Upright standing after stroke: How loading-unloading mechanism participates to the postural stabilization.

Hum Mov Sci 2019 Jan 15;64:47-54. Epub 2019 Jan 15.

Clinique MPR CHU Grenoble, Laboratoire de Psychologie et NeuroCognition (CNRS UMR 5105) Université Pierre Mendes France, Grenoble, France. Electronic address:

Postural strategies employed by hemiparetic stroke patients need to be better understood to guide rehabilitation. Of the two complementary mechanisms used to stabilize the standing posture, loading-unloading (LU) and pressure distribution (PD), it is hypothesized that the former would be predominantly used. To this aim, posturographic assessments, through a dual force-platform, were performed in 30 Hemiparetics tested 3 months after a unilateral stroke, and 30 matched healthy Controls. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.004DOI Listing
January 2019
1 Read

Rowing together: Interpersonal coordination dynamics with and without mechanical coupling.

Hum Mov Sci 2019 Jan 14;64:38-46. Epub 2019 Jan 14.

University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, The Netherlands. Electronic address:

Although most research on interpersonal coordination focuses on perceptual forms of interaction, many interpersonal actions also involve interactions of mechanical nature. We examined the effect of mechanical coupling in a rowing task from a coupled oscillator perspective: 16 pairs of rowers rowed on ergometers that were physically connected through slides (mechanical coupling condition) or on separate ergometers (no mechanical coupling condition). They rowed in two patterns (in- and antiphase) and at two movement frequencies (20 and 30 strokes per minute). Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.008DOI Listing
January 2019
1 Read

Adaptive perception of changes in affordances for walking on a ship at sea.

Hum Mov Sci 2019 Jan 11;64:28-37. Epub 2019 Jan 11.

Affordance Perception-Action Laboratory, School of Kinesiology, University of Minnesota, USA. Electronic address:

Ocean waves cause oscillatory motion of ships. Oscillatory ship motion typically is greater in roll (i.e. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.002DOI Listing
January 2019
1 Read

The effects of age and musculoskeletal pain on force variability among manual workers.

Hum Mov Sci 2019 Jan 11;64:19-27. Epub 2019 Jan 11.

Sport Sciences, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark. Electronic address:

The present study investigated the influence of age and musculoskeletal pain on force variability during a continuous isometric handgrip force task performed at 30% of maximal voluntary contraction carried out until failure. We recruited 96 male manual workers aged 51-72 years. The participants were stratified according to their age (50-59 and 60+ years) and by pain status (no pain, acute pain and chronic pain). Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.006DOI Listing
January 2019
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The anatomy of antagonistic coregulation: Emergent coordination, path dependency, and the interplay of biomechanic parameters in Aikido.

Hum Mov Sci 2019 Feb 11;63:231-253. Epub 2019 Jan 11.

Dept. of Social and Cultural Anthropology, University of Vienna, Austria.

Using a video-supported cognitive ethnographic and phenomenological approach, we address the interactively generated dynamic of bouts in Aikido. This "soft" martial art enables a defender to blend with and then redirect an attacker's aggressive energy so as to break his balance, while preserving an ethos of non-violence, mutuality, and respect. Our analysis explores the skills used to minutely adapt to the opponent, the causal-temporal structure of Aikido, notably the cumulative effect build-up and main decision points in a bout, as well as the perceptual cues from inter-body geometry, timing, and force dynamics that inform decisions. Read More

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http://dx.doi.org/10.1016/j.humov.2018.08.008DOI Listing
February 2019
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Postural control after unexpected external perturbation: Effects of Parkinson's disease subtype.

Hum Mov Sci 2019 Jan 9;64:12-18. Epub 2019 Jan 9.

São Paulo State University (Unesp), Institute of Biosciences, Posture and Gait Studies Laboratory (LEPLO), Rio Claro, Brazil; Post-Graduation Program in Movement Sciences, São Paulo State University - UNESP, Brazil. Electronic address:

Different clinical subtypes of Parkinson's disease (PD) have long been recognized. Recent studies have focused on two PD subtypes: Postural Instability and Gait Difficulty (PIGD) and Tremor Dominant (TD). PIGD patients have greater difficulties in postural control in relation to TD. Read More

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http://dx.doi.org/10.1016/j.humov.2019.01.001DOI Listing
January 2019
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Explicit and implicit motor sequence learning in children and adults; the role of age and visual working memory.

Hum Mov Sci 2019 Jan 9;64:1-11. Epub 2019 Jan 9.

Radboud University Nijmegen, Behavioural Science Institute, PO Box 9104, 6500 HE Nijmegen, The Netherlands; Centre for Disability & Development Research (CeDDR), Australian Catholic University, School of Psychology, Melbourne, Australia. Electronic address:

This study investigated explicit and implicit motor learning, and the influence of visual working memory (VWM) and age. Sixty children and 28 adults learned a nine-button sequence task explicitly and implicitly. Performance in explicit and implicit learning improved with age. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183039
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http://dx.doi.org/10.1016/j.humov.2018.12.007DOI Listing
January 2019
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Motion planning strategies in human control of non-rigid objects with internal degrees of freedom.

Hum Mov Sci 2019 Feb 28;63:209-230. Epub 2018 Dec 28.

Department of Intelligent Robotics, Kazan Federal University, Kremlyovskaya Str. 35, Kazan 420008, Russian Federation. Electronic address:

The paper deals with modeling of human-like reaching movements in dynamic environments. A simple but not trivial example of reaching in a dynamic environment is the rest-to-rest manipulation of a multi-mass flexible object with the elimination of residual vibrations. Two approaches to the prediction of reaching movements are formulated in position and force actuation settings. Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.004DOI Listing
February 2019
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Multi-person and multisensory synchronization during group dancing.

Hum Mov Sci 2019 Feb 21;63:199-208. Epub 2018 Dec 21.

Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Canada. Electronic address:

Synchronized group dancing is one of the hallmarks of both coordination and cooperation in the humans species. While a large amount of research has focused on joint action in dyads, the mechanisms of coordination in larger groups are not well understood. In the present study, we explored the coordination dynamics of a group of folk dancers by examining the influence of three sensory-coupling channels on the stability of group coordination. Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.005DOI Listing
February 2019
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Examining the impact of error estimation on the effects of self-controlled feedback.

Hum Mov Sci 2019 Feb 20;63:182-198. Epub 2018 Dec 20.

School of Human Kinetics, University of Ottawa, Montpetit Hall, 125 University, Room 232, Ottawa, ON K1N 6N5, Canada. Electronic address:

Two experiments were conducted that examined the motivational and informational perspectives concerning learning advantages from self-controlled practice. Three groups were tasked with learning a novel skill; self-controlled (SC), yoked traditional (YT), and yoked with error estimation required during the acquisition phase (YE). Results from the delayed learning measures showed the YE group performed better than the SC and YT groups, for Expt. Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.002DOI Listing
February 2019
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Visual load and variability of muscle activation: Effects on reactive driving of older adults.

Hum Mov Sci 2019 Feb 15;63:172-181. Epub 2018 Dec 15.

Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA; Department of Physical Therapy, University of Florida, Gainesville, FL, USA.

Background: The functional significance of the increase in motor output variability with increased visual information processing in older adults remains unclear. Here, we test the hypothesis that increased visual information processing increases muscle activation variability in older adults and impairs their ability to react as fast and as precisely as young adults during a simulated reactive driving task.

Methods: Fourteen young and sixteen older adults performed a reactive driving simulation task that required responding to unexpected brake lights of the car ahead during a simple reaction time task (low visual information processing condition) and a choice reaction time task with "no go" trials condition (high visual information processing condition). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183038
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http://dx.doi.org/10.1016/j.humov.2018.11.018DOI Listing
February 2019
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Development of postural stability limits: Anteroposterior and mediolateral postural adjustment mechanisms do not follow the same maturation process.

Hum Mov Sci 2019 Feb 14;63:164-171. Epub 2018 Dec 14.

Département de Kinésiologie, Université de Montréal, 2100, boul. Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada; Institut universitaire de gériatrie de Montréal, Université de Montréal, 2100, boul. Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada. Electronic address:

There is increasing evidence that indicates a critical transition period for the maturation of postural control from the ages of 6-7 years. Some studies suggest that this transitional period may be explained by a change from a ballistic toward a sensory strategy, but the cause remains unknown. The purpose of this study was to investigate the influence of the transition period on dynamic postural control in a natural self-initiated leaning task under different sensory conditions. Read More

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http://dx.doi.org/10.1016/j.humov.2018.11.016DOI Listing
February 2019
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Weighted vest effects on impact forces and joint work during vertical jump landings in men and women.

Hum Mov Sci 2019 Feb 12;63:156-163. Epub 2018 Dec 12.

Department of Kinesiology & Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Box 3034, Las Vegas, NV 89154, USA.

Weighted vest (WV) use during vertical jump landings (VJL) does not appear to alter peak vertical ground reaction forces (GRF) or peak joint torques. However, WV effects on joint work and sex differences during VJL are not well understood. This study assessed WV effects on vertical GRF and sagittal joint work during VJL in men and women. Read More

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http://dx.doi.org/10.1016/j.humov.2018.12.001DOI Listing
February 2019
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Effect of taping and its conditions on electromyographic responses of knee extensor muscles.

Authors:
Kohei Watanabe

Hum Mov Sci 2019 Feb 12;63:148-155. Epub 2018 Dec 12.

Laboratory of Neuromuscular Biomechanics, School of International Liberal Studies, Chukyo University, Nagoya, Japan. Electronic address:

Introduction: The present study investigated the effect of stretchable characteristics of elastic therapeutic tape and its elongation on surface electromyography (EMG) of knee extensor muscles during knee extension movements.

Methods: Nine healthy men performed knee extension movement with the application of normal elastic tape or highly stretchable tape and without the tapes (control). Tapes were applied on the anterior thigh to cross the knee joint with no elongation and elongation of 50 and 75% of the maximum stretchability. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01679457183060
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http://dx.doi.org/10.1016/j.humov.2018.12.003DOI Listing
February 2019
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Brief reaching training with "sticky mittens" in preterm infants: Randomized controlled trial.

Hum Mov Sci 2019 Feb 8;63:138-147. Epub 2018 Dec 8.

Physical Therapy Section, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil. Electronic address:

Objective: To examine whether a brief reaching training with sticky mittens was effective to improve reaching behavior in newly reaching preterm infants.

Methods: In this randomized controlled trial, twenty four 5-month-old (±16-week-old corrected age) preterm infants were randomly allocated into experimental or control groups. Infants were assessed three times in a single session: pretraining (immediately before training), posttraining (immediately after training), and retention (4 min after the posttraining). Read More

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http://dx.doi.org/10.1016/j.humov.2018.11.015DOI Listing
February 2019
2 Reads