19,460 results match your criteria gait speed


The associations between asymmetries in quadriceps strength and gait in individuals with unilateral transtibial amputation.

Gait Posture 2021 Sep 8;90:267-273. Epub 2021 Sep 8.

Department of Life Sciences, Whitelands College, University of Roehampton, Holybourne Avenue, London, SW15 4JD, UK. Electronic address:

Background: Individuals with unilateral transtibial amputations (ITTAs) are asymmetrical in quadriceps strength. It is unknown if this is associated with gait performance characteristics such as walking speed and limb symmetry.

Research Question: Are quadriceps strength asymmetries related to walking speed and/ or gait asymmetries in ITTAs?

Methods: Knee-extensor isometric maximum voluntary torque (MVT) and rate of torque development (RTD) were measured in eight ITTAs. Read More

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September 2021

Acute Vibration Feedback During Gait Reduces Mechanical Ankle Joint Loading in Chronic Ankle Instability Patients.

Gait Posture 2021 Sep 14;90:261-266. Epub 2021 Sep 14.

MOTION Science Institute, Department of Exercise & Sport Science, University of North Carolina at Chapel Hill, NC, USA.

Background: Individuals with chronic ankle instability (CAI) exhibit altered vertical ground reaction forces (vGRF), a laterally shifted center of pressure, and an inverted foot position during walking. These neuromechanical alterations are linked with altered ankle joint loading in this population. Vibration-based gait retraining improves center of pressure positioning but effects on neuromechanical variables influencing joint loading remains unknown. Read More

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September 2021

Longitudinal association of sarcopenia and mild cognitive impairment among older Mexican adults.

J Cachexia Sarcopenia Muscle 2021 Sep 17. Epub 2021 Sep 17.

Center for Evaluation and Surveys Research, National Institute of Public Health, Cuernavaca, Mexico.

Background: Recent evidence from cross-sectional and longitudinal studies supports the hypothesis that sarcopenia is associated with worsening cognitive function. However, primary evidence largely comes from high-income countries, whereas in low- and middle-income countries, this association has been underexplored. This study aimed to estimate the longitudinal association between sarcopenia and mild cognitive impairment in a sample of older Mexican adults. Read More

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September 2021

Diagnosis of Sarcopenic Dysphagia in the Elderly: Critical Review and Future Perspectives.

Dysphagia 2021 Sep 17. Epub 2021 Sep 17.

SUNY Downstate- School of Medicine, Brooklyn, NY, USA.

Sarcopenic dysphagia (SD) is swallowing difficulty associated with loss of generalized skeletal muscles and swallowing-related muscles. Diagnostic criteria for SD were suggested, yet there is a variability in instruments and cut-offs used. The aim of the current review is to critically evaluate tools used in diagnosis of sarcopenic dysphagia in the elderly. Read More

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September 2021

Limitations of SARC-F as a Screening Tool for Sarcopenia in Patients on Hemodialysis.

Nephron 2021 Sep 14:1-8. Epub 2021 Sep 14.

Department of Rehabilitation Sciences, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan.

Introduction: There are limited screening tools for sarcopenia in patients undergoing hemodialysis. This study aimed to investigate the reliability and validity of the SARC-F (Strength, Assistance in walking, Rise from a chair, Climb stairs, and Falls) questionnaire as a screening tool for sarcopenia (defined by the Asian Working Group for Sarcopenia [AWGS2019]) in patients undergoing hemodialysis.

Methods: This cross-sectional study enrolled 179 patients (mean age: 66. Read More

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September 2021

Critically appraised paper: Implicit motor learning is not superior to explicit motor learning for improving gait speed in chronic stroke [commentary].

Authors:
Lara A Boyd

J Physiother 2021 Sep 14. Epub 2021 Sep 14.

Department of Physical Therapy & the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada.

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September 2021

Critically appraised paper: Implicit motor learning is not superior to explicit motor learning for improving gait speed in chronic stroke [synopsis].

Authors:
Prudence Plummer

J Physiother 2021 Sep 14. Epub 2021 Sep 14.

Department of Physical Therapy, MGH Institute of Health Professions, USA.

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September 2021

Influence of coronal and sagittal prosthetic foot alignment on socket reaction moments in transtibial prostheses during walking.

Gait Posture 2021 Aug 16;90:252-260. Epub 2021 Aug 16.

Graduate School of Comprehensive Rehabilitation, Osaka Prefecture University, Habikino City, Osaka, Japan.

Background: The socket reaction moment (SRM) has been reported to change because of alignment changes in transtibial prosthetic sockets. However, the influence of prosthetic foot alignment on SRM remains unclear.

Research Question: Are SRMs predictable from alignment changes of prosthetic feet?

Methods: Ten users of transtibial prostheses participated in this study. Read More

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Dopaminergic but not Cholinergic Neurodegeneration is Correlated with Gait Disturbances in PINK1 Knockout Rats.

Behav Brain Res 2021 Sep 14:113575. Epub 2021 Sep 14.

Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030. Electronic address:

Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by gait dysfunction in later stages of the disease. PD hallmarks include a decrease in stride length, run speed, and swing time; an increase in stride time, stance time, and base of support; dopaminergic degeneration in the basal ganglia; and cholinergic degeneration in the pedunculopontine nucleus (PPN). A progressive animal model of PD is needed to identify treatments for gait dysfunction. Read More

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September 2021

Virtual Orthopaedic Examination of the Lower Extremity: The Know-How of an Emerging Skill.

JBJS Rev 2021 Sep 17;9(9). Epub 2021 Sep 17.

Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio.

»: Telemedicine has become an emerging necessity in the practice of orthopaedic surgery following the paradigm shift that was brought on by the COVID-19 pandemic.

»: Physical examination is an integral component of orthopaedic care and plays a crucial role in diagnosis.

»: Based on our experience and expert opinion in the literature, we recommend the following infrastructure for a virtual orthopaedic physical examination: a computing device with a functioning camera and high-definition input/output audio, a 720p (high-definition) display, a processing speed of 3. Read More

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September 2021

Dynamical behavior of coal shearer under the influence of multiple factors in slant-cutting conditions.

Sci Rep 2021 Sep 16;11(1):18447. Epub 2021 Sep 16.

School of Mechanical Engineering, Liaoning Technical University, Fuxin, 123000, Liaoning, China.

Aiming at the problem of severe vibration and abnormal wear and tear of various components in coal shearer under slant-cutting conditions, a non-linear dynamics model with 13 degrees of freedom for a coal shearer under slant-cutting conditions is developed using vibration mechanics and multi-body dynamics theory, and the characteristics of the slide shoes-middle groove contact, the ranging arm-haulage unit connection with gaps and the guidance sliding boots-pin rail multi-surface contact with gaps are described based on three-dimensional fractal theory and Hertz contact theory. Based on Huco's law, the ranging arm and the hydraulic rod are assumed to be flexible beams, the rigidity characteristics of the ranging arm itself, the connection characteristics of the haulage unit and the fuselage are described, a drum correction load with a traction speed correction factor is proposed as the external excitation of the system, and the model is solved and analyzed. The research results show that the change of traction speed has a greater influence on the vibration swing angle and displacement of the front drum, front ranging arm and front walking unit, and the vibration swing angle and displacement of the three increase with the increase of traction speed, while the change of coalface hardness coefficient has less influence on the vibration displacement of the key components of the coal shearer. Read More

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September 2021

Study protocol for yoga-based lifestyle intervention for healthy ageing phenotype in the older adults (yHAP): a two-armed, waitlist randomised controlled trial with multiple primary outcomes.

BMJ Open 2021 Sep 16;11(9):e051209. Epub 2021 Sep 16.

Swami Vivekananda Yoga Anusandhana Samsthana, Bengaluru, Karnataka, India.

Introduction: The conceptualisation of healthy ageing phenotype (HAP) and the availability of a tentative panel for HAP biomarkers raise the need to test the efficacy of potential interventions to promote health in older adults. This study protocol reports the methodology for a 24-week programme to explore the holistic influence of the yoga-based intervention on the (bio)markers of HAP.

Methods And Analysis: The study is a two-armed, randomised waitlist controlled trial with blinded outcome assessors and multiple primary outcomes. Read More

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September 2021

Between-site equivalence of turning speed assessments using inertial measurement units.

Gait Posture 2021 Sep 9;90:245-251. Epub 2021 Sep 9.

Department of Health and Kinesiology, University of Utah, Salt Lake City, UT, United States. Electronic address:

Background: Turning is a component of gait that requires planning for movement of multiple body segments and the sophisticated integration of sensory information from the vestibular, visual, and somatosensory systems. These aspects of turning have led to growing interest to quantify turning in clinical populations to characterize deficits or identify disease progression. However, turning may be affected by environmental differences, and the degree to which turning assessments are comparable across research or clinical sites has not yet been evaluated. Read More

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September 2021

Differences in balance control between healthy younger and older adults during steady-state walking.

J Biomech 2021 Aug 28;128:110717. Epub 2021 Aug 28.

Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA.

Each year approximately one third of older adults fall and experience extensive musculoskeletal injuries and functional disabilities. An important element in maintaining dynamic balance is the regulation of whole-body angular momentum, which is achieved by proper foot placement with respect to the body center-of-mass as well as generation of appropriate ground reaction forces. Analyzing these quantities in younger and older adults may provide insight into differences in their underlying mechanics for maintaining dynamic balance. Read More

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Predicting Future Mobility Limitation in Older Adults: A Machine Learning Analysis of Health ABC Study Data.

J Gerontol A Biol Sci Med Sci 2021 Sep 16. Epub 2021 Sep 16.

Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC.

Background: Mobility limitation in older adults is common and associated with poor health outcomes and loss of independence. Identification of at-risk individuals remains challenging because of time-consuming clinical assessments and limitations of statistical models for dynamic outcomes over time. Therefore, we aimed to develop machine learning models for predicting future mobility limitation in older adults using repeated measures data. Read More

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September 2021

The Association of Mobility Determinants and Life Space Among Older Adults.

J Gerontol A Biol Sci Med Sci 2021 Sep 16. Epub 2021 Sep 16.

Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA, USA.

Background: It is important to understand the factors associated with life space mobility so that mobility disability can be prevented/treated. The purpose of this study was to identify the association between mobility determinants and life space among older adults.

Methods: This study was a cross-sectional analysis of 249 community-dwelling older adults (mean age=77. Read More

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September 2021

CT muscle density, D3Cr muscle mass and body fat associations with physical performance, mobility outcomes and mortality risk in older men.

J Gerontol A Biol Sci Med Sci 2021 Sep 16. Epub 2021 Sep 16.

California Pacific Medical Center Research Institute, San Francisco, CA.

Background: Muscle mass declines with age, while body adiposity increases. Sarcopenic obesity has been proposed to be particularly deleterious. However, previous methods for estimating muscle mass have been inadequate, and the relative contributions of total body fat vs. Read More

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September 2021

Evaluation of Different Intraarticular Injection Therapies with Gait Analysis in a Rat Osteoarthritis Model.

Cartilage 2021 Sep 16:19476035211046042. Epub 2021 Sep 16.

Orthopaedics and Traumatology Department, Ankara Yıldırım Beyazıt University, Ankara, Turkey.

Objective: Osteoarthritis (OA) is a degenerative disease that causes serious damage to joints, especially in elderly patients. The aim of study was to demonstrate the effectiveness of intraarticular therapies that are currently used or recently popularized in the treatment of OA.

Design: The baseline values were determined by walking the rats on the CatWalk system. Read More

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September 2021

Preoperative Short Physical Performance Battery as a predictor of prolonged hospitalization after coronary artery bypass grafting in older patients.

J Int Med Res 2021 Sep;49(9):3000605211044043

Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China.

Objective: The study aimed to evaluate the predictive value of the Short Physical Performance Battery (SPPB) and its three components for identifying the requirement for a prolonged hospitalization for coronary artery bypass grafting (CABG) in older patients.

Methods: This prospective, observational study included 425 older patients who consecutively underwent selective CABG surgery. All patients were assessed for the SPPB. Read More

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September 2021

Synergistic associations of cognitive and motor impairments with functional outcome in covert cerebral small vessel disease.

Eur J Neurol 2021 Sep 15. Epub 2021 Sep 15.

Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.

Background: Cognitive and motor impairments are the key clinical manifestations of cerebral small vessel disease (SVD), but their combined effects on functional outcome have not been elucidated. This study investigated the interactions and mediating effects of cognitive and motor functions on instrumental activities of daily living (IADL) and quality of life in older individuals with various degrees of white matter hyperintensities (WMH).

Methods: Participants of the Helsinki Small Vessel Disease Study (n=152) were assessed according to an extensive clinical, physical, neuropsychological and MRI protocol. Read More

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September 2021

Cut-off points to screening for sarcopenia in community-dwelling older people residents in Brazil.

PeerJ 2021 25;9:e12038. Epub 2021 Aug 25.

Postgraduate Program in Physiotherapy, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.

Background: At a time when the world's population is aging, one of the most important challenges for the healthcare field is to control the decline of the musculoskeletal system. This decline consists of a reduction in muscle mass and function, which is called sarcopenia and is associated with adverse health outcomes. Although there has been an increase in the number of publications on sarcopenia and its consequences, the reported prevalence varies widely, since these depend on the characteristics of the population studied, the definitions found in the literature and the cut-off points adopted. Read More

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Hip Range of Motion and Strength Predict 12-Month Physical Function Outcomes in Older Adults With Chronic Low Back Pain: The Delaware Spine Studies.

ACR Open Rheumatol 2021 Sep 15. Epub 2021 Sep 15.

University of Delaware, Newark.

Objective: The objective of this study was to investigate whether poor hip range of motion (ROM) and strength predict 12-month physical function decline among older adults with chronic low back pain (LBP) and whether hip osteoarthritis modifies those relationships.

Methods: At baseline, passive ROM and strength measurements were taken for hip flexion, extension, abduction, adduction, internal rotation, and external rotation; ultrasound images and self-reported symptoms were used to evaluate hip osteoarthritis presence (eg, osteophytes and hip pain). At baseline and 12 months, performance-based (repeated chair rise, self-selected gait speed, 6-minute walk test [6MWT]) and self-reported (Quebec LBP Disability Questionnaire, Late-Life Function & Disability Instrument [LLFDI] basic and advanced lower extremity scales) physical function outcomes were assessed. Read More

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September 2021

Inflammatory markers are associated with quality of life, physical activity, and gait speed but not sarcopenia in aged men (40-79 years).

J Cachexia Sarcopenia Muscle 2021 Sep 15. Epub 2021 Sep 15.

Geriatrics and Gerontology, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium.

Background: Age-related chronic low-grade inflammation (inflammaging) is one of the proposed mechanisms behind sarcopenia. However, findings regarding inflammatory markers in sarcopenic older adults are conflicting. This study aimed to determine the association between inflammatory markers, prevalent as well as incident sarcopenia, sarcopenia-defining parameters, quality of life (QoL), and physical activity in middle-aged and older men. Read More

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September 2021

Computerised cognitive remediation to enhance mobility in older adults: a single-blind, single-centre, randomised trial.

Lancet Healthy Longev 2021 Sep 2;2(9):e571-e579. Epub 2021 Sep 2.

(Prof J Verghese MBBS, J R Mahoney PhD, E Ayers MPH, C Wang PhD, Prof R Holtzer PhD), (Prof J Verghese), (A Ambrose MD), (C Wang), (Prof R Holtzer).

Background: Decline in executive functions and related cognitive processes is associated with mobility decline, and these functions might be amenable to cognitive remediation. This study aimed to examine whether a computerised cognitive remediation programme would improve walking in adults aged 70 years and older.

Methods: This single-blind, randomised trial at one academic centre in the USA evaluated the efficacy of an 8-week computerised programme (also known as brain games) of progressive intensity and complexity to improve walking in older adults at high-risk for mobility disability. Read More

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September 2021

Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system.

Sci Rep 2021 Sep 14;11(1):18254. Epub 2021 Sep 14.

Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, 852 Hatakeda, Narita City, Chiba, 286-8520, Japan.

In patients with dropped head syndrome (DHS), cervical malalignment is one of the risk factors for impaired horizontal gaze and restrictions to ambulation. The characteristics of gait in patients with DHS have not been clarified biomechanically from the viewpoint of dynamic alignment and lower limb kinematics. This study aimed to clarify kinematic and kinetic differences during level walking in patients with DHS compared to the healthy elderly. Read More

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September 2021

Current application of continuous relative phase in running and jumping studies: A systematic review.

Gait Posture 2021 Aug 25;90:215-233. Epub 2021 Aug 25.

Department of Kinesiology, Shenyang Sports Institute, Shenyang, 110102, China; Li Ning Sports Science Research Center, Li Ning (China) Sports Goods Company, Beijing, 101111, China; Li Ning Sports Technology (Shenzhen) Co., Ltd, Shenzhen, 518000, China. Electronic address:

Background: Continuous relative phase (CRP) has gained popularity to assess movement performances in recent decades.

Research Question: The application and interpretation of CRP in common movements such as running and jumping are still unclear.

Methods: This systematic review summarized the current applications, methodology, parameters of interest, and interpretations of CRP variables in running and jumping. Read More

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Coordination variability during running in adolescents with autism spectrum disorder.

Autism 2021 Sep 14:13623613211044395. Epub 2021 Sep 14.

Old Dominion University, USA.

Lay Abstract: Walking and running are popular forms of physical activity that involve the whole body (pelvis/legs and arms/torso) and are coordinated by the neuromuscular system, generally without much conscious effort. However, autistic persons tend not to engage in sufficient amounts of these activities to enjoy their health benefits. Recent reports indicate that autistic individuals tend to experience altered coordination patterns and increased variability during walking tasks when compared to non-autistic controls. Read More

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September 2021

The geriatric incontinence syndrome: Characterizing geriatric incontinence in older women.

J Am Geriatr Soc 2021 Sep 13. Epub 2021 Sep 13.

S.B. Kritchevsky, Sticht Center for Healthy Aging and Alzheimer's Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.

Objectives: Among older women, the clinical presentation of urinary incontinence (UI) is heterogeneous; presenting as a pelvic floor condition or geriatric syndrome. We aimed to characterize the geriatric incontinence syndrome (GIS) to establish its foundation in clinical practice.

Design: Prospective study. Read More

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September 2021

Task dependent changes in mechanical and biomechanical measures result from manipulating stiffness settings in a prosthetic foot.

Clin Biomech (Bristol, Avon) 2021 Sep 6;89:105476. Epub 2021 Sep 6.

Research Centre of Movement Science, University of Iceland, Sæmundargata 2, 102 Reykjavík, Iceland.

Background: Adaptation of lower limb function to different gait tasks is inherently not as effective among individuals with lower limb amputation as compared to able-bodied individuals. Varying stiffness of a prosthetic foot may be a way of facilitating gait tasks that require larger ankle joint range of motion.

Methods: Three stiffness settings of a novel prosthetic foot design were tested for level walking at three speeds as well as for 7,5° incline and decline walking. Read More

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September 2021

Reference values for seven different protocols of simple functional tests: a multicentre study.

Arch Phys Med Rehabil 2021 Sep 10. Epub 2021 Sep 10.

Graduate Program in Rehabilitation Sciences, Universidade Nove de Julho, (UNINOVE); São Paulo, São Paulo, Brazil.

Objectives: To establish reference values and equations (20-80 years old) for seven simple functional tests based on a multicentre study.

Design: Cross-sectional data collection in four research centers across different regions of a continental dimension country.

Setting: Healthy subjects from general community were assessed in different research laboratories. Read More

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September 2021