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[Consult Your Physician or Health Care Provider? Health and Legal Aspects Regarding the Use of Dietary Supplements Offered in the World Wide Web].

Sportverletz Sportschaden 2018 Dec 11;32(4):264-271. Epub 2018 Dec 11.

Hochschule für öffentliche Verwaltung und Finanzen Ludwigsburg.

Background:  In Germany, widespread use is made of dietary supplements (DS) to improve the individual health status, especially among patients diagnosed with certain conditions, elderly people and athletes. Legal aspects as well as health risks related to DS purchased via the internet are rarely analysed in Germany.

Purpose:  We aim to provide a review of the respective literature focusing on health risks, legal aspects und consumer information related to the internet retailing of DS. Read More

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December 2018
1 Read

Ski Mountaineering - Evaluation of a Sports Specific Performance Diagnosis.

Sportverletz Sportschaden 2018 Dec 11;32(4):233-242. Epub 2018 Dec 11.

SozialStiftung Bamberg, Sports Orthopedics, Bamberg.

Ski mountaineering (skimo) has recently gained popularity and established itself as a competition sport. It requires a specific training with a high hypoxic load. Although a variety of sport specific performance test protocols have been developed, a specific method for ski mountaineering (skimo) is pending. Read More

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December 2018
2 Reads

Retrograde fixation of the lesser trochanter in the adolescent: new surgical technique and clinical results of two cases.

Arch Orthop Trauma Surg 2018 Dec 10. Epub 2018 Dec 10.

Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Introduction: Avulsions of the lesser femoral trochanter are rare injuries in the adolescent population. An acute avulsion causes severe functional impairment with compromised hip flexion. Recent literature reports the superiority of surgical treatment for apophyseal avulsion fractures of the pelvis in adolescents. Read More

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December 2018

Posterior tibial slope angle is associated with flexion-type Salter-Harris II and Watson-Jones type IV fractures of the proximal tibia.

Knee Surg Sports Traumatol Arthrosc 2018 Dec 10. Epub 2018 Dec 10.

Department of Orthopaedic Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.

Purpose: Flexion-type Salter-Harris (SH) II fractures of the proximal tibia, also described as Watson-Jones (WJ) IV fractures, are rare injuries reported among adolescent athletes who are close to skeletal maturity and remain elusive. Due to this classification disagreement, the various treatments range from nonoperative to operative types, and no previous studies have explained the mechanisms of injury or the source of the fracture forces. This retrospective matched case-control study aimed to identify radiological factors that are associated with the fracture forces and to elucidate the mechanisms of these injuries. Read More

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December 2018

Professional Soccer Players' Return to Play and Performance After Operative Repair of Achilles Tendon Rupture.

Orthop J Sports Med 2018 Nov 28;6(11):2325967118810772. Epub 2018 Nov 28.

Department of Orthopaedics, New York Presbyterian, Columbia University Medical Center, New York, New York, USA.

Background: The majority of Achilles tendon ruptures are sports related; however, no investigation has examined the impact of surgical repair for complete ruptures on professional soccer players.

Purpose: To examine the return to play, playing time, and performance of professional soccer players following Achilles tendon repair.

Study Design: Cohort study; Level of evidence, 3. Read More

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November 2018

Improvements in Thigh Strength Symmetry Are Modestly Correlated With Changes in Self-Reported Function After Anterior Cruciate Ligament Reconstruction.

Orthop J Sports Med 2018 Nov 28;6(11):2325967118807459. Epub 2018 Nov 28.

Orthopedics Biomechanics Laboratory and Sports Medicine Center, Mayo Clinic, Rochester, Minnesota, USA.

Background: The association between quadriceps strength and functional outcomes after anterior cruciate ligament reconstruction (ACLR) is a focus of current research, while evaluations of hamstring strength are limited, despite the frequent use of hamstring autografts.

Purpose/hypothesis: The purpose of this study was to determine the relationship between changes in quadriceps and hamstring strength symmetry and self-reported outcomes before ACLR and at 12 and 24 weeks after surgery. We hypothesized that improvements in quadriceps and hamstring strength symmetry would be correlated with improvements in self-reported outcome measures within the first 6 months after ACLR. Read More

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November 2018

EFFICACY OF REFLEXIVE NEUROMUSCULAR STABILIZATION DURING TREATMENT OF SCAPULAR DYSKINESIA IN AN OVERHEAD ATHLETE: A CASE REPORT.

Int J Sports Phys Ther 2018 Dec;13(6):1073-1082

University of Idaho, Moscow, ID, USA.

Background And Purpose: Shoulder injuries are common amongst overhead athletes. Dysfunctional motor patterns (scapular dyskinesis) may be the cause or result. Improperly treated, they can sideline athletes or reduce quality of life. Read More

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December 2018

REHABILITATION OF CHRONIC BRACHIAL PLEXUS NEUROPRAXIA AND LOSS OF CERVICAL EXTENSION IN A HIGH SCHOOL FOOTBALL PLAYER: A CASE REPORT.

Int J Sports Phys Ther 2018 Dec;13(6):1061-1072

Praxis Physical Therapy & Human Performance, Vernon Hills, IL, USA.

Background And Purpose: Brachial plexus neuropraxia (BPN), or "burners" and "stingers", affect 50-65% of football players, with a high rate of recurrence and the potential, in rare cases, for catastrophic injury. Existing literature on rehabilitation of these athletes is limited. The purpose of this case report is to describe the successful and comprehensive rehabilitation of a subject with recurrent brachial plexus neuropraxia using range of motion exercises, cervical and periscapular strengthening, stabilization exercises, and activity modification. Read More

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December 2018

ACUTE EFFECTS OF MUSCLE ENERGY TECHNIQUE AND JOINT MOBILIZATION ON SHOULDER TIGHTNESS IN YOUTH THROWING ATHLETES: A RANDOMIZED CONTROLLED TRIAL.

Int J Sports Phys Ther 2018 Dec;13(6):1024-1031

School of Kinesiology and Recreation, Illinois State University, Normal, IL, USA.

Background: Posterior shoulder tightness (PST), defined as limited glenohumeral (GH) horizontal adduction and internal rotation motion, is a common occurrence in overhead athletes, particularly baseball and softball players, as a result of the extreme forces on the GH joint and the high number of throwing repetitions. Despite clinical evidence suggesting the use of joint mobilizations and muscle energy techniques (MET) for treating PST, there currently are no data examining the overall effectiveness of joint mobilizations and MET to determine optimal treatment for posterior shoulder tightness.

Purpose: To compare the acute effectiveness of MET and joint mobilizations for reducing posterior shoulder tightness, as measured by passive GH horizontal adduction and internal rotation ROM, among high school baseball and softball players. Read More

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December 2018

COMPARISON OF CORE STABILITY AND BALANCE IN ATHLETES WITH AND WITHOUT SHOULDER INJURIES.

Int J Sports Phys Ther 2018 Dec;13(6):1015-1023

Drexel University, Philadelphia, PA, USA.

Background: Relationships between core stability and lower extremity injuries have been described in the literature; however, evidence of the relationship between upper extremity injuries and core stability and balance is limited.

Hypothesis/purpose: The purpose of this study was to compare clinical measures of core stability and balance between athletes with and without non-traumatic shoulder injuries.

Study Design: Cross sectional. Read More

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December 2018

Relationship of Movement Screens with Past Shoulder or Elbow Surgeries in Collegiate Baseball Players.

Int J Sports Phys Ther 2018 Dec;13(6):1008-1014

School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH.

Background: Upper extremity injuries commonly occur in baseball players, and can often necessitate surgical interventions. Athletes recovering from previous surgeries may be at greater risk of a secondary injury due to potential residual deficits in global movement. Identifying individuals with residual movement dysfunction following surgery during a pre-participation examination may help health care professionals identify baseball players who may be at a greater risk of re-injury in their throwing arms so that appropriate interventions can be developed. Read More

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December 2018

THE INFLUENCE OF SENSORIMOTOR TRAINING MODALITIES ON BALANCE, STRENGTH, JOINT FUNCTION, AND PLANTAR FOOT SENSITIVITY IN RECREATIONAL ATHLETES WITH A HISTORY OF ANKLE SPRAIN: A RANDOMIZED CONTROLLED PILOT STUDY.

Int J Sports Phys Ther 2018 Dec;13(6):993-1007

Niederrhein University of Applied Sciences, Faculty of Health Care, Therapeutic Sciences, Reinarzstr. 49, 47805 Krefeld, Germany.

Background: Ankle sprains frequently result in persistent sensorimotor deficits. Sufficient evidence of effects of sensorimotor training using unstable devices on physical functions is lacking. There is no insight as to whether simultaneous tactile stimulation of plantar foot mechanoreceptors using textured surfaces may influence outcomes in people with a history of ankle sprain. Read More

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December 2018

NON-CONTACT ANTERIOR CRUCIATE LIGAMENT AND LOWER EXTREMITY INJURY RISK PREDICTION USING FUNCTIONAL MOVEMENT SCREEN AND KNEE ABDUCTION MOMENT: AN EPIDEMIOLOGICAL OBSERVATION OF FEMALE INTERCOLLEGIATE ATHLETES.

Int J Sports Phys Ther 2018 Dec;13(6):973-984

University of Idaho, Moscow, ID, USA.

Background: Modifiable risk factors associated with non-contact anterior cruciate ligament (ACL) injuries are highly debated, yet the incidence rate of ACL injury continues to increase. Measures of movement quality may be an effective method for identifying individuals who are at a high risk of injury.

Purpose: The purpose of this study was to investigate whether a movement screen and/or a drop-jump landing (DJL) task identifies female individuals at a higher risk for sustaining non-contact lower extremity (LE) injuries, particularly ACL injuries. Read More

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December 2018

COMPARISON OF NON-CONTACT AND CONTACT TIME-LOSS LOWER QUADRANT INJURY RATES IN MALE COLLEGIATE BASKETBALL PLAYERS: A PRELIMINARY REPORT.

Int J Sports Phys Ther 2018 Dec;13(6):963-972

Clackamas Community College, Oregon City, OR, USA.

Background: Male collegiate basketball (BB) players are at risk for musculoskeletal injury. The rate of time-loss injury in men's collegiate BB, for levels of National Collegiate Athletic Association (NCAA) competition, ranges from 2.8 to 4. Read More

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December 2018

Quadriceps Tendon Autograft Anterior Cruciate Ligament Reconstruction With Independent Suture Tape Reinforcement.

Authors:
Michael G Saper

Arthrosc Tech 2018 Nov 29;7(11):e1221-e1229. Epub 2018 Oct 29.

Department of Orthopedics and Sports Medicine, Seattle Children's Hospital; and Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, U.S.A.

Anterior cruciate ligament (ACL) injuries are common among adolescent athletes and are rising with increased participation in higher level athletics at earlier ages. In these young patients, often with open physes, soft tissue grafts continue to be the primary graft choice for ACL reconstruction. Reinjury continues to be a concern in this high-risk age group, with failure rates 2 to 3 times higher than in adults. Read More

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November 2018

G3 sports supplement in short triathlon: improvements in training, performance, recovery and oxidative stress.

Minerva Med 2018 Dec;109(6):451-456

CH-PE University, Irvine 3 Labs, Chieti, Italy.

Background: This registry study evaluated the effects of G3 Sports supplement drink (G3) on performance and endurance in triathlon in amateur athletes in a period of 2 weeks of training. G3 is composed of a proprietary fruit juice blend high in carotenoid compounds as well as 100 mg of standardized French oak (Quercus robur) wood extract, Robuvit®, per 50 mL bottle. The antioxidant and anti-inflammatory actions of the compounds in G3 may improve training efficiency (decreasing post-triathlon muscular pain, cramps and improve recovery time) and decrease post-training plasma free radicals (PFR). Read More

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December 2018

Integration of Wearable Sensors Into the Evaluation of Running Economy and Foot Mechanics in Elite Runners.

Curr Sports Med Rep 2018 Dec;17(12):480-488

Collaborating Centre of Sports Medicine, University of Brighton, Eastbourne, UNITED KINGDOM.

Running economy, known as the steady-state oxygen consumption at a given submaximal intensity, has been proposed as one of the key factors differentiating East African runners from other running communities around the world. Kenyan runners have dominated middle- and long-distance running events and this phenomenon has been attributed, in part at least, to their exceptional running economy. Despite such speculation, there are no data on running mechanics during real-life situations such as during training or competition. Read More

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December 2018
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The Effect of Exercise Training on Autonomic Cardiovascular Regulation: From Cardiac Patients to Athletes.

Curr Sports Med Rep 2018 Dec;17(12):473-479

Italian Federation of Sports Medicine, Rome, ITALY.

Exercise training is increasingly promoted for physical and mental health and represents a major factor in both primary and secondary prevention of cardiovascular (CV) diseases. The beneficial effects of exercise, in part, can be ascribed to adaptations of neural CV regulation through several mechanisms. In this article, we summarize how exercise training affects neural CV regulation and outline the plasticity of neural network in the continuum from cardiac patients to elite athletes. Read More

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December 2018

The Fluidity of Gender and Implications for the Biology of Inclusion for Transgender and Intersex Athletes.

Curr Sports Med Rep 2018 Dec;17(12):467-472

Department of Movement, Human and Health Sciences, University of Rome "Foro Italico," Rome, ITALY.

One of the most contentious issues in modern day sport arises when sports are divided into male and female categories. The International Association of Athletics Federations' (IAAF) previous policy regulating intersex athletes was suspended by the Court of Arbitration for Sport (CAS), resulting in a new policy. The challenge faced by the governing body of athletics is to formulate a policy that upholds both international law and the Olympic charter that stipulates athletes compete without discrimination of any kind. Read More

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December 2018

Use of the TRH Stimulation Test to Assess Long Term Changes of Thyroid Function in an Olympic Athlete.

Curr Sports Med Rep 2018 Dec;17(12):454-456

Endocrinology Associates of Houston, Houston, TX.

This case report presents the utility of the thyroid-releasing hormone (TRH) stimulation test for assessing endocrine disease in athletes. On two occasions, 4 years apart (1992 and 1996), a TRH stimulation test was performed to corroborate clinical symptoms and observation. On the first occasion, the patient's symptoms were not attributed to thyroid disease. Read More

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December 2018

Effects of Ketone Bodies on Endurance Exercise.

Curr Sports Med Rep 2018 Dec;17(12):444-453

Unit of Endocrinology, Department of Movement, Human and Health Sciences, Università degli Studi di Roma "Foro Italico", Rome, ITALY.

Priorities for every athlete include improving endurance performance, optimizing training, nutrition, and recovery. Nutritional strategies are crucial to support athletes to perform at the highest level, and considering that muscular and hepatic glycogen stores are limited, alternative strategies to maximize fat metabolism have been suggested. A ketogenic diet has been proposed as a possible method of providing metabolic fuel during prolonged periods of exercise. Read More

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December 2018

Safeguarding the Child and Adolescent Athlete.

Curr Sports Med Rep 2018 Dec;17(12):419-424

Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN.

Youth athletics can provide numerous benefits to children. Until recently, athletics have been relatively free from scrutiny over the ways they put participants at risk. While it was often disregarded in early childhood research, athletics emerged as an avenue of child abuse in the 1980s. Read More

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December 2018

Care of the Transgender Athlete.

Curr Sports Med Rep 2018 Dec;17(12):410-418

Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL.

Transgender individuals identify as a gender different than their sex designated at birth. Transgender athletes, as the name implies, are transgender individuals who participate in sports/athletics. By reviewing the literature relevant to transgender athletes and adding commentary on important considerations, this article acts as a primer for the sports medicine clinician on the care of transgender athletes. Read More

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December 2018

Adolescent Pitcher Recovery from Partial Ulnar Collateral Ligament Tear after Platelet-Rich Plasma.

Curr Sports Med Rep 2018 Dec;17(12):407-409

Georgetown University School of Medicine, MedStar National Rehabilitation Network, Washington, DC.

Platelet-rich plasma (PRP), as a regenerative treatment for partial ulnar collateral ligament (UCL) tears, is validated to lead to faster clinical recovery and return to play in adult athletes. However, studies examining such a role of PRP in younger pediatric and adolescent athletes are scarce. A 14-year-old adolescent throwing athlete, a right-handed pitcher, presented with chronic right medial elbow pain discovered to be secondary to a partial UCL tear, as identified on both ultrasound and magnetic resonance imaging. Read More

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December 2018
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Effects of Sports Compression Socks on Performance, Physiological, and Hematological Alterations After Long-Haul Air Travel in Elite Female Volleyballers.

J Strength Cond Res 2018 Dec 7. Epub 2018 Dec 7.

Department of Physiology, Australia Institute of Sport, Belconnen, Australian Capital Territory, Australia.

Broatch, JR, Bishop, DJ, Zadow, EK, and Halson, S. Effects of sports compression socks on performance, physiological, and hematological alterations after long-haul air travel in elite female volleyballers. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this investigation was to assess the merit of sports compression socks in minimizing travel-induced performance, physiological, and hematological alterations in elite female volleyball athletes. Read More

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December 2018

Effects of Preferred vs. Nonpreferred Music on Resistance Exercise Performance.

J Strength Cond Res 2018 Dec 7. Epub 2018 Dec 7.

Department of Kinesiology, Samford University, Birmingham, Alabama.

Ballmann, CG, McCullum, MJ, Rogers, RR, Marshall, MM , and Williams, TD. Effects of preferred vs. nonpreferred music on resistance exercise performance. Read More

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December 2018

How to Serve Faster in Tennis: The Influence of an Altered Focus of Attention and Augmented Feedback on Service Speed in Elite Players.

J Strength Cond Res 2018 Dec 7. Epub 2018 Dec 7.

Movement and Sport Science, Department of Neurosciences and Movement Sciences, University of Fribourg, Switzerland.

Keller, M, Kuhn, YA, Lüthy, F, and Taube, W. How to serve faster in tennis: the influence of an altered focus of attention and augmented feedback on service speed in elite players. J Strength Cond Res XX(X): 000-000, 2018-Different approaches, such as providing augmented feedback (AF) or adopting an external focus of attention (EF), have been shown to directly enhance performance in recreational athletes. Read More

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December 2018

Prevalence and Predictors of Higher-Risk Supplement Use Among Collegiate Athletes.

J Strength Cond Res 2018 Dec 7. Epub 2018 Dec 7.

Department of Family and Consumer Sciences, California State University, Long Beach, Long Beach, California.

Sassone, J, Muster, M, and Barrack, MT. Prevalence and predictors of higher-risk supplement use among National Collegiate Athletic Association Division I athletes. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to identify the prevalence and predictors associated with the use of higher-risk dietary supplements, defined as supplements containing herbal ingredients, caffeine, or those classified for weight loss, muscle-building, or as a preworkout supplement, among 557 National Collegiate Athletic Association Division I male and female collegiate athletes. Read More

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December 2018

Pediatric and adolescent ankle instability: diagnosis and treatment options.

Curr Opin Pediatr 2018 Dec 10. Epub 2018 Dec 10.

Department of Orthopaedic Surgery.

Purpose Of Review: The purpose of this review is to discuss the epidemiology, pathoanatomy, diagnosis, and treatment for lateral ankle instability in pediatric patients.

Recent Findings: Chronic ankle instability is a common sequela of lateral ankle sprain in young athletes. Incidence is increasing, possibly due in part to inadequate treatment of first-time ankle sprains, as well as increased youth participation in organized and competitive sports. Read More

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December 2018

Spondylolysis 2019 update.

Curr Opin Pediatr 2018 Dec 3. Epub 2018 Dec 3.

Washington University in St. Louis, St. Louis, Missouri, USA.

Purpose Of Review: Provide a comprehensive overview of lumbar spondylolysis, a frequent cause of lower back pain in children and adolescents, from evaluation to management.

Recent Findings: With the surge of structured sports participation in the pediatric population, spondylolysis is a common ailment that afflicts many young athletes due to rigorous competition that taxes the growing spine with repetitive extension and rotation.

Summary: Spondylolysis is a fracture through the pars interarticularis. Read More

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December 2018

External loads associated with anterior cruciate ligament injuries increase the correlation between tibial slope and ligament strain during in vitro simulations of in vivo landings.

Clin Biomech (Bristol, Avon) 2018 Nov 24;61:84-94. Epub 2018 Nov 24.

Mayo Clinic Biomechanics Laboratories, Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Sports Medicine Center, Mayo Clinic, Rochester, MN, USA; Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, MN, USA.

Background: The aim of the present study was to evaluate the relationship between tibial slope angle and ligament strain during in vitro landing simulations that induce ACL failure through the application of variable external loading at the knee. The hypothesis tested was that steeper posterior tibial slope angle would be associated with higher ACL strain during a simulated landing task across all external loading conditions.

Methods: Kinetics previously derived from an in vivo cohort performing drop landings were reproduced on 45 cadaveric knees via the mechanical impact simulator. Read More

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November 2018

Performance and altitude: Ways that nutrition can help.

Nutrition 2018 Oct 7;60:35-40. Epub 2018 Oct 7.

Department of Bioscience, Universidade Federal de São Paulo, São Paulo, Brazil. Electronic address:

High altitudes are a challenge for human physiology and for sports enthusiasts. Several reasons lead to deterioration in performance at high altitudes. Hypoxia owing to high altitude causes a breakdown of homeostasis with imbalance in several physiological systems, including the immune system. Read More

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October 2018
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Fat-free mass in adolescent athletes: Accuracy of bioimpedance equations and identification of new predictive equations.

Nutrition 2018 Oct 6;60:59-65. Epub 2018 Oct 6.

Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy.

Objectives: The aims of this study were to evaluate the effect of biological maturity on body composition in Brazilian adolescent athletes, to verify the accuracy of previous bioimpedance predictive equations for estimating fat-free mass (FFM), and to develop new predictive equations, considering sexual and skeletal maturity.

Methods: There were 318 Brazilian adolescent athletes (52% male) involved in this study. FFM was determined using single-frequency (50 kHz) bioelectrical impedance analysis (BIA) and dual-energy x-ray absorptiometry (DXA), which was used as the reference method. Read More

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October 2018

Comparison of Maximum Oxygen Uptake and Rating Perceived Exertion in Woman's Kabaddi Athletes (Without Breathy Voice to Severe Breathy Voice).

J Voice 2018 Dec 7. Epub 2018 Dec 7.

Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran.. Electronic address:

Objective: There is limited research on voice problems of athletes, especially Kabaddi athletes who use their voice during Kabaddi exercises and may damage their vocal folds and impair their voice quality. The present study aimed to compare maximum oxygen uptake (VOmax) and rating perceived exertion (RPE) in Woman's Kabaddi athletes without breathy voice (BV) to severe BV.

Materials And Methods: Seventy woman's Kabaddi athletes (mean age of 20. Read More

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December 2018

Linked MRI signatures of the brain's acute and persistent response to concussion in female varsity rugby players.

Neuroimage Clin 2018 Dec 3. Epub 2018 Dec 3.

Medical Biophysics, Western University, London, ON, Canada; Centre for Functional and Metabolic Mapping, Robarts Research Institute, London, ON, Canada. Electronic address:

Acute brain changes are expected after concussion, yet there is growing evidence of persistent abnormalities well beyond clinical recovery and clearance to return to play. Multiparametric MRI is a powerful approach to non-invasively study structure-function relationships in the brain, however it remains challenging to interpret the complex and heterogeneous cascade of brain changes that manifest after concussion. Emerging conjunctive, data-driven analysis approaches like linked independent component analysis can integrate structural and functional imaging data to produce linked components that describe the shared inter-subject variance across images. Read More

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December 2018

A primer on traumatic brain injury for nursing faculty.

J Prof Nurs 2018 Nov - Dec;34(6):488-493. Epub 2018 Jan 31.

Goshen College School of Nursing, 1700 S. Main St. Goshen, IN 46526, United States.

Incidence of traumatic brain injury (TBI) is increasing on campuses. Despite growing media attention and athletic program protocols to address the issue, many are unaware of the potential effects such an injury can cause. This may be true for nursing faculty who teach or advise students recovering from TBI. Read More

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January 2018

The relationship between maximum heart rate in a cardiorespiratory fitness test and in a maximum heart rate test.

J Sci Med Sport 2018 Nov 28. Epub 2018 Nov 28.

Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway; Women's Clinic, St.Olav's Hospital, Norway. Electronic address:

Objectives: It is suggested that individuals will not reach their heart rate maximum (HRmax) at an incremental cardiorespiratory fitness (CRF) test and commonly five beats per minute (bpm) are added to the highest heart rate (HR) reached. To our knowledge, there is not sufficient data justifying such estimation. Our aim was to assess whether individuals reached HRmax in an incremental CRF test to exhaustion. Read More

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November 2018

Severe Hypoglycemia Due to Cryptic Insulin Use in a Bodybuilder.

J Emerg Med 2018 Dec 6. Epub 2018 Dec 6.

Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Henri Mondor, Service d'Accueil des Urgences, Créteil, France; Université Paris-Est Créteil, Institut National de la Santé et de la Recherche Médicale U955, Créteil, France.

Background: Bodybuilding is a demanding sport, which requires high-volume, high-resistance weight training and augmented nutritional intake, toward an increase of overall body muscle mass accompanied by an overall decrease of body fat percentage and mass. Among bodybuilders, the use of various legal and illegal supplements is common. These supplements may be naturally occurring or man-made. Read More

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December 2018

The use of ultrasound in athletes.

Authors:
Gina M Allen

Eur J Radiol 2018 Dec 30;109:136-141. Epub 2018 Oct 30.

St Lukes Radiology Oxford Ltd and University of Oxford, Latimer Road, Headington, Oxford, OX3 7PF, UK.

Ultrasound is being used by sports physicians in their daily practice to problem solve, but there is still a reluctance for some radiologists to embrace this technique. It has become the "stethoscope" of the sports physician as it is freely available to have in the office setting (Tok, et al. [1]). Read More

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December 2018

Priority use of medium-chain fatty acids during high-intensity exercise in cross-country skiers.

J Int Soc Sports Nutr 2018 Dec 10;15(1):57. Epub 2018 Dec 10.

Department of Ecological and Medical Physiology, Ural Branch, Head of Department, Institute of Physiology, Russian Academy of Sciences, Pervomaiskaya av.50, Syktyvkar, 167982, Russia.

Background: One of the topics discussed in sports science is the use of medium-chain saturated fat as an energy-saving nutrient additive when approaching high-intensity exercise. The purpose of this study was to compare the blood concentrations of medium-chain and long-chain fatty acids (FAs) across different intensity loads.

Methods: Fifteen male highly trained athletes from the Russian cross-country skiing team participated in the study. Read More

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December 2018

Changes in Scaphoid and Lunate Position and Loading at Two Wrist Pushup Positions.

Curr Rheumatol Rev 2018 Dec 10. Epub 2018 Dec 10.

Department of Orthopedic Surgery, SUNY Upstate Medical University, Syracuse, New York. United States.

Background: Scapholunate interosseous ligament (SLIL) injury following a fall on an outstretched hand may lead to carpal instability and in some cases require long term rehabilitation following repair. Rehabilitation, especially in athletes, may include pushups, but little is known as to what type of pushup may be safer.

Objective: To determine biomechanical differences between two pushup position (neutral or extended). Read More

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December 2018

The effect of landing surface on landing error scoring system grades.

Sports Biomech 2018 Dec 10:1-8. Epub 2018 Dec 10.

b Department of Orthopaedics and Rehabilitation, College of Medicine , University of Florida , Gainesville , FL , USA.

Different landing surfaces may affect lower extremity biomechanical performance during athletic tasks. The magnitude of this effect on clinical screening measures such as jump-landings is unknown. This study determined the effect of court (CS), grass (GS), and tile (TS) surfaces on Landing Error Scoring System (LESS) grades. Read More

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December 2018

The Impact of a Previous Ankle Injury on Current Health-Related Quality of Life in Collegiate Athletes.

J Sport Rehabil 2018 Dec 11:1-26. Epub 2018 Dec 11.

* Department of Interdisciplinary Health Sciences, A.T. Still University, Mesa, AZ.

Context:: There has been an increased interest in understanding how ankle injuries impact patient outcomes, however, it is unknown how the severity of a previous ankle injury influences health-related quality of life (HRQOL).

Objective:: To determine the impact of a previous ankle injury on current HRQOL in collegiate athletes.

Design:: Retrospective review of electronic medical records. Read More

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December 2018

The Effects of External Focus Instruction Exercise on Performance and Kinetics in Landing After Volleyball Blocks of Female Athletes.

J Sport Rehabil 2018 Dec 11:1-37. Epub 2018 Dec 11.

4 Assistant professor of biomechanic, Faculty of physical education and sports sciences, Kharazmi University, Tehran, Iran.

Context:: Female volleyball players are more predisposed to anterior cruciate ligament (ACL) injury in comparison with their male counterparts. Recent researches on ACL injury prevention strategies have shown the positive results of adopting the external focus (EF) of attention in sports.

Objective:: This study aimed to determine the effect of six-week EF instruction exercises on performance and kinetic factors associated with lower extremity injury in landing after the volleyball blocks of female athletes. Read More

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December 2018

The Effectiveness of Deep Oscillation Therapy on Reducing Swelling and Pain in Athletes with Acute Lateral Ankle Sprains.

J Sport Rehabil 2018 Dec 11:1-17. Epub 2018 Dec 11.

1 Department of Kinesiology, University of Connecticut. Storrs, CT.

Clinical Scenario:: Ankle sprains are the most prevalent athletic related musculoskeletal injury treated by athletic trainers, often affecting activities of daily living and delaying return to play.1 Most of these cases present with pain and swelling in the ankle, resulting in decreased range of motion and strength deficits.1 Due to these impairments, proper treatment is necessary to avoid additional loss of play and prevent future injuries. Read More

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December 2018

Comparison of the Position-Matching and Position-Reproducing Tasks to Detect Deficits in Knee Position Sense After Reconstruction of the Anterior Cruciate Ligament.

J Sport Rehabil 2018 Dec 11:1-23. Epub 2018 Dec 11.

1 Faculty of Sport Sciences, Waseda University, Tokorozawa-city, Saitama, Japan.

Context:: Deficits in knee position sense following reconstruction of the anterior cruciate ligament (ACL) can delay an athlete's return to sport participation and increase the risk of re-injury. Deficits in position sense post-reconstruction have been evaluated using either a position-reproducing or position-matching task.

Objective:: The aim of our study was to combine both to determine which assessment would be more effective to identify deficits in knee position sense. Read More

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December 2018

Pain Catastrophizing in Collegiate Athletes.

J Sport Rehabil 2018 Dec 11:1-20. Epub 2018 Dec 11.

2 Department of Orthopaedic Surgery & Sports Medicine, University of Kentucky, Lexington, KY.

Background:: Pain is the most common patient-reported symptom but the perception of pain is complex, differs between individuals and not directly proportional to the extent of injury. The relationship between aberrant pain coping strategies such as pain catastrophizing and the presence of pain in competitive athletes should be further established to employ the most optimal treatment.

Hypothesis:: The hypotheses were that numeric pain rating and pain catastrophizing scores (PCS) would have a moderate to strong relationship in collegiate athletes, and athletes with either a current injury or previous injury, or playing with pain would have significantly higher pain catastrophizing scores compared to non-injured/non-painful athletes. Read More

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December 2018

Landing Kinematics, Sports Performance and Isokinetic Strength in Adolescent Male Volleyball Athletes: Influence of Core Training.

J Sport Rehabil 2018 Dec 11:1-26. Epub 2018 Dec 11.

a Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Context:: Core control and strength are important for reducing the risk of lower extremity injury. Current evidence on the effect of core training in male adolescent athletes is limited, and other investigations into the effects of core training often emphasized core strength only.

Objective:: To examine whether core training emphasizing both control and strength of the trunk and hip would improve joint kinematics during landing, sports performance, and lower extremity muscle strength in adolescent male volleyball athletes. Read More

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December 2018

Three-Dimensional Analysis of Scapular Kinematics During Arm Elevation in Baseball Players With Scapular Dyskinesis: Comparison of Dominant and Non-Dominant Arms.

J Sport Rehabil 2018 Dec 11:1-30. Epub 2018 Dec 11.

2 Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Republic of Korea.

Background:: The knowledge of 3-dimensional (3D) scapular kinematics is essential for understanding the pathological lesions of shoulder and elbow in throwing athletes. Many studies about alterations of resting scapular position, dynamic scapular motion, or scapular dyskinesis(SD) have been conducted, yet none of them have identified a consistent pattern of altered scapular kinematics in throwing athletes.

Hypothesis/purpose:: To analyze the 3D scapular kinematics of dominant and non-dominant arms in baseball players with a pathological condition of shoulder or elbow. Read More

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December 2018

Does vibration benefit delayed-onset muscle soreness?: a meta-analysis and systematic review.

J Int Med Res 2018 Dec 10:300060518814999. Epub 2018 Dec 10.

8 School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.

Objective: Delayed-onset muscle soreness (DOMS) is a symptom of exercise-induced muscle injury that is commonly encountered in athletes and fitness enthusiasts. Vibration is being increasingly used to prevent or treat DOMS. We therefore carried out a meta-analysis to evaluate the effectiveness of vibration in patients with DOMS. Read More

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December 2018