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https://www.readbyqxmd.com/read/29039723/glenohumeral-internal-rotation-deficit-in-table-tennis-players
#1
Danilo Harudy Kamonseki, Luísa Cedin, Fernanda Assis Paes Habechian, Guigliano Franco Piccolomo, Paula Rezende Camargo
Table tennis requires rapid and extreme movements that may result in shoulder adaptations, such as glenohumeral internal rotation deficit, which is a risk factor for several injuries. This study compared range of motion of internal and external rotation and total rotation motion of glenohumeral joint between dominant and non-dominant shoulders of table tennis players. This is a cross-sectional observational study. Twenty healthy male table tennis players that were enrolled in an official table tennis league took part in this study (mean age: 22...
October 17, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29031470/the-resonant-system-linking-brain-body-environment-in-sport-performance-%C3%A2
#2
Pedro Teques, Duarte Araújo, Ludovic Seifert, Vicente L Del Campo, Keith Davids
The ecological dynamics approach offers new insights to understand how athlete nervous systems are embedded within the body-environment system in sport. Cognitive neuroscience focuses on the neural bases of athlete behaviors in terms of perceptual, cognitive, and motor functions defined within specific brain structures. Here, we discuss some limitations of this traditional perspective, addressing how athletes functionally adapt perception and action to the dynamics of complex performance environments by continuously perceiving information to regulate goal-directed actions...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29022255/acute-and-chronic-response-to-exercise-in-athletes-the-supernormal-heart
#3
Antonello D'Andrea, Tiziana Formisano, Lucia Riegler, Raffaella Scarafile, Raffaella America, Francesca Martone, Marco di Maio, Maria Giovanna Russo, Eduardo Bossone, Maurizio Galderisi, Raffaele Calabrò
During last decades, most studies have examined the exercise-induced remodeling defined as "athlete's heart". During exercise, there is an increased cardiac output that causes morphological, functional, and electrical modification of the cardiac chambers. The cardiac remodeling depends also on the type of training, age, sex, ethnicity, genetic factors, and body size. The two main categories of exercise, endurance and strength, determine different effects on the cardiac remodeling. Even if most sport comprise both strength and endurance exercise, determining different scenarios of cardiac adaptation to the exercise...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29021910/the-training-type-influence-on-male-elite-athletes-ventilatory-function
#4
Tijana Durmic, Biljana Lazovic Popovic, Mirjana Zlatkovic Svenda, Marina Djelic, Vladimir Zugic, Tamara Gavrilovic, Zoran Mihailovic, Marija Zdravkovic, Roman Leischik
BACKGROUND/AIM: To assess and compare measured ventilatory volumes (forced expiratory volume in 1 s (FEV1), peak expirium flow (PEF) and maximal voluntary ventilation (MVV)), ventilatory function capacities (forced vital capacity (FVC) and vital capacity (VC)) and FEV1/VC ratio in a sample of power and endurance elite athletes and their age-matched and sex-matched sedentary control group. METHODS: A cross-sectional study was applied on male elite athletes (n=470) who were classified according to the type of the predominantly performed exercise in the following way: group 1: endurance group (EG=270), group 2: power athletes group (SG=200) and group 3: sedentary control group (CG=100)...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29021872/psychometric-properties-of-the-malay-language-version-of-knee-injury-and-osteoarthritis-outcome-score-koos-questionnaire-among-knee-osteoarthritis-patients-a-confirmatory-factor-analysis
#5
M M Zulkifli, A A Kadir, A Elias, K C Bea, A N Sadagatullah
Introduction: This study aimed to cross-culturally adapt a Malay version of Knee Injury and Osteoarthritis Outcome Score (KOOS) and to evaluate its psychometric properties in patients with knee osteoarthritis (OA). Materials and Methods: The English version KOOS was translated into a Malay version using forward and backward translation process, followed by face validity and content validity. Two hundred and twenty-six knee OA patients attending the Outpatient and Orthopaedic Clinics, Universiti Sains Malaysia Hospital, completed the Malay version KOOS...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29016675/effect-of-small-sided-team-sport-training-and-protein-intake-on-muscle-mass-physical-function-and-markers-of-health-in-older-untrained-adults-a-randomized-trial
#6
Jacob Vorup, Mogens Theisen Pedersen, Lena Kirchner Brahe, Pia Sandfeld Melcher, Joachim Meno Alstrøm, Jens Bangsbo
The effect of small-sided team sport training and protein intake on muscle mass, physical function, and adaptations important for health in untrained older adults was examined. Forty-eight untrained older (72±6 (±standard deviation, SD) years men and women were divided into either a team sport group ingesting a drink high in protein (18 g) immediately and 3 h after each training session (TS-HP, n = 13), a team sport group ingesting an isocaloric drink with low protein content (3 g; TS-LP, n = 18), or a control group continuing their normal activities (CON, n = 17)...
2017: PloS One
https://www.readbyqxmd.com/read/28990865/effects-of-physical-randomness-training-on-virtual-and-laboratory-golf-putting-performance-in-novices
#7
T C Pataky, P F Lamb
External randomness exists in all sports but is perhaps most obvious in golf putting where robotic putters sink only 80% of 5 m putts due to unpredictable ball-green dynamics. The purpose of this study was to test whether physical randomness training can improve putting performance in novices. A virtual random-physics golf-putting game was developed based on controlled ball-roll data. Thirty-two subjects were assigned a unique randomness gain (RG) ranging from 0.1 to 2.0-times real-world randomness. Putter face kinematics were measured in 5 m laboratory putts before and after five days of virtual training...
October 9, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28990148/athletes-and-the-aorta-normal-adaptations-and-the-diagnosis-and-management-of-pathology
#8
REVIEW
J Stephen Hedley, Dermot Phelan
Over a hundred years ago, physicians first recognized that participation in regular, vigorous training resulted in enlargement of the heart. Since that time, the term "athlete's heart" has entered the medical lexicon as a global expression encompassing the electrical, functional, and morphological adaptations that develop in response to physical training. Exercise-induced adaptations of the aorta, which is also exposed to large hemodynamic stresses during prolonged endurance exercise or resistance training, are less well recognized...
October 9, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28985104/sport-participation-for-elite-athletes-with-physical-disabilities-motivations-barriers-and-facilitators
#9
Gabriella McLoughlin, Courtney Weisman Fecske, Yvette Castaneda, Candace Gwin, Kim Graber
There are many reasons why individuals are motivated to participate in sports. Less attention, however, is given for studying motivation and athlete development in adapted sport. The purpose of this study was to identify the motivations, facilitators, and barriers to sports participation of elite athletes with a physical disability. Participants (N = 23, 17 males, six females, mean age: 24.3 years) were recruited through online listservs, e-mails, and snowball sampling. A semistructured interview guide was employed...
October 6, 2017: Adapted Physical Activity Quarterly: APAQ
https://www.readbyqxmd.com/read/28983841/evidence-based-concepts-for-prevention-of-knee-and-acl-injuries-2017-guidelines-of-the-ligament-committee-of-the-german-knee-society-dkg
#10
Julian Mehl, Theresa Diermeier, Elmar Herbst, Andreas B Imhoff, Thomas Stoffels, Thore Zantop, Wolf Petersen, Andrea Achtnich
INTRODUCTION: Knee injuries and especially anterior cruciate ligament (ACL) tears are frequent in athletes. Therefore, primary and secondary prevention of sports-related lower limb injuries is an ongoing topic of interest. The aim of present study was to establish guidelines for the prevention of knee and ACL injuries on the basis of evidence-based concepts represented in current literature. METHODS: A comprehensive literature review regarding prevention programs for knee and ACL injuries was conducted...
October 5, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28982706/neural-signature-of-value-based-sensorimotor-prioritization-in-humans
#11
Annabelle Blangero, Simon P Kelly
In situations where impending sensory events demand fast action choices, we must be ready to prioritize higher-value courses of action in order to avoid missed opportunities. When such a situation first presents itself, stimulus-action contingencies and their relative value must be encoded in order to establish a value-biased state of preparation for an impending sensorimotor decision. Here we sought to identify neurophysiological signatures of such processes in the human brain (both female and male). We devised a task requiring fast action choices based on the discrimination of a simple visual cue, in which the differently-valued sensory alternatives were presented 750-800 msec beforehand as peripheral "targets" that specified the stimulus-action mapping for the upcoming decision...
October 5, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28980347/sensory-processing-and-central-pain-modulation-in-patients-with-chronic-shoulder-pain-a-case-control-study
#12
K Kuppens, G Hans, N Roussel, F Struyf, E Fransen, P Cras, C P Van Wilgen, J Nijs
Chronicity and recurrence in musculoskeletal shoulder pain are highly prevalent and can possibly be attributed to the concept of central sensitization. Available studies suggest a role for central sensitization in explaining chronic shoulder pain, but so far a comprehensive quantitative sensory testing (QST) protocol has not been used. The aim of this study was to gain knowledge on sensory processing and central pain modulatory mechanisms in patients suffering from chronic shoulder pain using such a QST protocol...
October 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28979920/translation-cross-cultural-adaptation-and-validation-of-the-activity-rating-scale-for-disorders-of-the-knee
#13
Vala Flosadottir, Ewa M Roos, Eva Ageberg
BACKGROUND: The Activity Rating Scale (ARS) for disorders of the knee evaluates the level of activity by the frequency of participation in 4 separate activities with high demands on knee function, with a score ranging from 0 (none) to 16 (pivoting activities 4 times/wk). PURPOSE: To translate and cross-culturally adapt the ARS into Swedish and to assess measurement properties of the Swedish version of the ARS. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28977075/cross-cultural-adaptation-of-the-sport-anxiety-scale-2-sas-2-for-the-brazilian-context
#14
Viviane Vedovato Silva-Rocha, Flávia de Lima Osório
OBJECTIVE: To present the process of cross-cultural adaptation of the Sport Anxiety Scale-2 (SAS-2) for the Brazilian context. METHOD: The following stages were used: translation into Brazilian Portuguese by independent translators, elaboration of a synthesis version, back-translation, evaluation by experts and pretest with target population. RESULTS: All the stages of cross-cultural adaptation were completed, and in the majority of items evaluated, good concordance between experts was obtained (≥ 80%)...
July 2017: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/28974400/the-effect-of-knee-flexor-and-extensor-fatigue-on-shock-absorption-during-cutting-movements-after-a-jump-landing
#15
Youkyung Kim, Changhong Youm, Minji Son, Jinhee Kim, Myeounggon Lee
BACKGROUND: Sporting situations include instances of continuous and/or integrated movements. However, the effect of fatigue on the performance of these movements remains unclear. PURPOSE: To investigate the effect of knee flexor and extensor fatigue on the shock absorption strategy of the lower limb during cutting movements performed after jump landings. METHODS: Twenty-four healthy participants performed cutting movements following jump landings from two heights - 30cm and 40cm - and under three levels of lower limb fatigue: pre-fatigue (100% peak knee extension torque), and post-fatigue 50% (post-50%) and 30% (post-30%) peak knee extension torque...
September 30, 2017: Knee
https://www.readbyqxmd.com/read/28968223/in-sport-and-now-in-medical-school-examining-students-well-being-and-motivations-for-learning
#16
Oksana Babenko, Amber Mosewich
Objectives: To investigate relationships between students' past level of involvement in physical activity/sport and their motivations for learning (achievement goals) and well-being in medical school. In doing so, we provide evidence to medical programs to inform admission processes and curriculum planning. Methods: A cross-sectional study was conducted. Out of 640 medical students, 267 completed an online questionnaire with measures of: achievement goals, academic burnout, physical activity/sport involvement, and demographics...
September 22, 2017: International Journal of Medical Education
https://www.readbyqxmd.com/read/28967241/functional-movement-screentm-and-history-of-injury-in-assessment-of-potential-risk-of-injury-among-team-handball-players
#17
Robert Slodownik, Anna Ogonowska-Slodownik, Natalia Morgulec-Adamowicz
INTRODUCTION: Handball is known to be one of the team sports representing the highest risk of injury. Several investigators have tried to identify injury risk factors in team sports including handball and suggested the need to develop an optimal tool to capture and quantify the potential risk of injury. The aim of the study was to evaluate potential risk of injury among handball players. METHODS: It was a mixed design study. Handball players from 1st and 2nd division were evaluated (n = 30) using the Functional Movement ScreenTM (FMSTM)...
September 29, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28964824/spine-kinematics-exhibited-during-the-stop-jump-by-physically-active-individuals-with-adolescent-idiopathic-scoliosis-and-spinal-fusion
#18
Rumit Singh Kakar, Yumeng Li, Cathleen N Brown, Seock-Ho Kim, Timothy S Oswald, Kathy J Simpson
BACKGROUND CONTEXT: After spinal fusion, adolescent idiopathic scoliosis individuals (SF-AIS) often return to exercise and sport. However, the movements SF-AIS use to compensate for the loss of spinal flexibility during high-effort tasks are not known. PURPOSE: To compare, between SF-AIS and healthy controls (CON) groups, the spinal kinematics of the trunk segments displayed during the stop-jump, a maximal effort task. STUDY DESIGN: Case Controlled design METHODS: Ten SF-AIS (physically active; posterior-approach spinal fusion: 11...
September 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28961061/sport-expertise-in-perception-action-coupling-revealed-in-a-visuomotor-tracking-task
#19
Maroua Mallek, Nicolas Benguigui, Matt Dicks, Regis Thouvarecq
We compared the visuomotor coordination of tennis players with different levels of expertise (Super-Experts, Experts and Non-Experts) in a visuomotor tracking (VMT) task. Participants were asked to track a moving target which could rebound on the sides of a 2D screen. Results indicated that the VMT task allowed the discrimination of expertise. Multiple regression analysis revealed that performance could be explained by the temporal adaptation of participants to rebounds and the number of movement adaptations...
September 29, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28955250/primary-motor-cortex-excitability-in-karate-athletes-a-transcranial-magnetic-stimulation-study
#20
Vincenzo Monda, Anna Valenzano, Fiorenzo Moscatelli, Monica Salerno, Francesco Sessa, Antonio I Triggiani, Andrea Viggiano, Laura Capranica, Gabriella Marsala, Vincenzo De Luca, Luigi Cipolloni, Maria Ruberto, Francesco Precenzano, Marco Carotenuto, Christian Zammit, Monica Gelzo, Marcellino Monda, Giuseppe Cibelli, Giovanni Messina, Antonietta Messina
Purpose: The mechanisms involved in the coordination of muscle activity are not completely known: to investigate adaptive changes in human motor cortex Transcranial magnetic stimulation (TMS) was often used. The sport models are frequently used to study how the training may affect the corticospinal system excitability: Karate represents a valuable sport model for this kind of investigations for its high levels of coordination required to athletes. This study was aimed at examining possible changes in the resting motor threshold (rMT) and in the corticospinal response in karate athletes, and at determining whether athletes are characterized by a specific value of rMT...
2017: Frontiers in Physiology
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