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https://www.readbyqxmd.com/read/28922128/deep-manifold-learning-combined-with-convolutional-neural-networks-for-action-recognition
#1
Xin Chen, Jian Weng, Wei Lu, Jiaming Xu, Jiasi Weng
Learning deep representations have been applied in action recognition widely. However, there have been a few investigations on how to utilize the structural manifold information among different action videos to enhance the recognition accuracy and efficiency. In this paper, we propose to incorporate the manifold of training samples into deep learning, which is defined as deep manifold learning (DML). The proposed DML framework can be adapted to most existing deep networks to learn more discriminative features for action recognition...
September 15, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#2
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28917030/the-role-of-intra-session-exercise-sequence-in-the-interference-effect-a-systematic-review-with-meta-analysis
#3
REVIEW
Lee Eddens, Ken van Someren, Glyn Howatson
BACKGROUND: There is a necessity for numerous sports to develop strength and aerobic capacity simultaneously, placing a significant demand upon the practice of effective concurrent training methods. Concurrent training requires the athlete to perform both resistance and endurance exercise within a training plan. This training paradigm has been associated with an 'interference effect', with attenuated strength adaptation in comparison to that following isolated resistance training. The effectiveness of the training programme rests on the intricacies of manipulating acute training variables, such as exercise sequence...
September 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28915093/sport-skill-specific-expertise-biases-sensory-integration-for-spatial-referencing-and-postural-control
#4
Michalis Thalassinos, Giorgos Fotiadis, Fotini Arabatzi, Brice Isableu, Vassilia Hatzitaki
The authors asked how sport expertise modulates visual field dependence and sensory reweighting for controlling posture. Experienced soccer athletes, ballet dancers, and nonathletes performed (a) a Rod and Frame test and (b) a 100-s bipedal stance task during which vision and proprioception were successively or concurrently disrupted in 20-s blocks. Postural adaptation was assessed in the mean center of pressure displacement, root mean square of center of pressure velocity and ankle muscles integrated electromyography activity...
September 15, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28913725/exercise-and-competitive-sport-physiology-adaptations-and-uncertain-long-term-risks
#5
REVIEW
Patrick T Gleason, Jonathan H Kim
The benefits of regular and moderate exercise training on cardiovascular outcomes have been well established. In addition, strenuous exercise training leads to corollary cardiac structural and functional adaptations that are sport-specific and facilitate athletic performance. In this review, the normal physiologic and hemodynamic changes that occur during exercise and the subsequent differential exercise-induced cardiac remodeling patterns that develop will be discussed. Paradoxically, recent data have raised concern about the long-term impact of higher doses of physical activity and exercise on mortality and cardiovascular health outcomes...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28905645/-i-d-rather-you-didn-t-come-the-impact-of-stigma-on-exercising-with-epilepsy
#6
Sarah S Collard, Caroline Ellis-Hill
Epilepsy is a common but hidden disorder, leading to stigma in everyday life. Despite stigma being widely researched, little is known about the impact of stigma for people with epilepsy within a sports and exercise setting. Using constructionist grounded theory, we explored the barriers and adaptations to exercise for people with epilepsy. Three focus groups (2-3 participants per group) and three semi-structured interviews were conducted (11 participants in total). Stigma negatively impacted joining team sports, running groups, and disclosure to others...
September 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28902108/effects-of-two-different-self-adapted-occlusal-splints-on-electromyographic-and-force-parameters-during-elbow-flexors-isometric-contraction
#7
Eloisa Limonta, Chiara Arienti, Susanna Rampichini, Massimo Venturelli, Emiliano Cè, Arsenio Veicsteinas, Fabio Esposito
The study was aimed at determining the acute effects of two types of occlusal splints on maximum isometric strength and fatigue of the elbow flexors muscles. The hypothesis was that splint-induced masticatory muscle repositioning might improve primary muscles recruitment by stretching masticatory muscles especially with the thicker splint.On nine physically active volunteers with no temporo-mandibular joint and masticatory muscles disorders, we assessed maximum voluntary contraction (MVC) of the elbow flexors with diurnal (OSD, 1-mm thick) and sport (OSSP, 3-mm thick) splints, and without splint (control, Ctrl)...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28900862/the-influence-of-growth-and-maturation-on-stretch-shortening-cycle-function-in-youth
#8
REVIEW
John M Radnor, Jon L Oliver, Charlie M Waugh, Gregory D Myer, Isabel S Moore, Rhodri S Lloyd
Hopping, skipping, jumping and sprinting are common tasks in both active play and competitive sports. These movements utilise the stretch-shortening cycle (SSC), which is considered a naturally occurring muscle action for most forms of human locomotion. This muscle action results in more efficient movements and helps optimise relative force generated per motor unit recruited. Innate SSC development throughout childhood and adolescence enables children to increase power (jump higher and sprint faster) as they mature...
September 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28900574/a-four-phase-physical-therapy-regimen-for-returning-athletes-to-sport-following-hip-arthroscopy-for-femoroacetabular-impingement-with-routine-capsular-closure
#9
Benjamin D Kuhns, Alexander E Weber, Brian Batko, Shane J Nho, Catherine Stegemann
Hip preservation surgery has become more common over the past decade and is now a preferred treatment modality for an increasingly diverse array of pathology in the young, active patient with hip pain. In particular, hip arthroscopy has become an increasingly popular treatment choice for active patients diagnosed with femoroacetabular impingement (FAI). Appropriate postoperative rehabilitation is critical for overall patient success and optimal long-term outcome. As surgical techniques continue to evolve, rehabilitation protocols must adapt to accommodate changes in the surgical procedure and ultimately provide the safest and fastest recovery of function for the patient...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28886473/strategies-for-injury-prevention-in-brazilian-football-perceptions-of-physiotherapists-and-practices-of-premier-league-teams
#10
Maurício Couto Meurer, Marcelo Faria Silva, Bruno Manfredini Baroni
OBJECTIVES: To describe the physiotherapists perceptions and the current practices for injury prevention in elite football (soccer) clubs in Brazil. DESIGN: Cross-sectional study. SETTING: Group of Science in Sports & Exercise, Federal University of Healthy Sciences of Porto Alegre (Brazil). PARTICIPANTS: 16 of the 20 football clubs involved in the Brazilian premier league 2015. MAIN OUTCOME MEASURES: Physiotherapists answered a structured questionnaire...
July 25, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28880052/effects-of-volleyball-plyometric-intervention-program-on-vertical-jumping-ability-in-male-volleyball-players
#11
Dariusz Mroczek, Krzysztof Maćkała, Adam Kawczynski, Edward Superlak, Paweł Chmura, Tomasz Seweryniak, Jan Chmura
BACKGROUND: This study aimed to investigate the effect of a 6-week plyometric exercise training program on the development of lower limb explosive power in terms of vertical jumping ability in university level volleyball players. The study involved 9 male volleyball players from the AWF Wroclaw University Sports Club, with a minimum of 5 years of training and competition experience. The program consisted of various bounds, hops, and jumps in vertical, horizontal, and mixed directions...
September 5, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28877167/measuring-dispositional-flow-validity-and-reliability-of-the-dispositional-flow-state-scale-2-italian-version
#12
Eleonora F M Riva, Giuseppe Riva, Cosimo Talò, Marco Boffi, Nicola Rainisio, Linda Pola, Barbara Diana, Daniela Villani, Luca Argenton, Paolo Inghilleri
OBJECTIVE: The aim of this study is to evaluate the psychometric properties of the Italian version of the Dispositional Flow Scale-2 (DFS-2), for use with Italian adults, young adults and adolescents. METHOD: In accordance with the guidelines for test adaptation, the scale has been translated with the method of back translation. The understanding of the item has been checked according to the latest standards on the culturally sensitive translation. The scale thus produced was administered to 843 individuals (of which 60...
2017: PloS One
https://www.readbyqxmd.com/read/28875080/experimental-moose-reduction-lowers-wolf-density-and-stops-decline-of-endangered-caribou
#13
Robert Serrouya, Bruce N McLellan, Harry van Oort, Garth Mowat, Stan Boutin
The expansion of moose into southern British Columbia caused the decline and extirpation of woodland caribou due to their shared predators, a process commonly referred to as apparent competition. Using an adaptive management experiment, we tested the hypothesis that reducing moose to historic levels would reduce apparent competition and therefor recover caribou populations. Nested within this broad hypothesis were three specific hypotheses: (1) sport hunting could be used to substantially reduce moose numbers to an ecological target; (2) wolves in this ecosystem were primarily limited by moose abundance; and (3) caribou were limited by wolf predation...
2017: PeerJ
https://www.readbyqxmd.com/read/28869996/-prevention-of-head-and-brain-injuries-in-football-is-there-a-need-to-ban-headings
#14
Volker Krutsch, Werner Krutsch, Petra Jansen, Helmut Hoffmann, Peter Angele, Jennifer Lehmann, Oliver Loose, Axel Gänsslen, Michael Nerlich, Johannes Weber
Football, the most popular sports worldwide, is associated with a high number of injuries. Head and brain injuries in football are less frequent, but may result in severe long-term damage. The mechanisms of these injuries in football are multifactorial, and the ball is rarely the main cause of a head injury. Short-term, medium-term and long-term consequences of headings in football are insufficiently examined, and there are hardly any case reports about severe episodes. Heading has been banned in US junior football since November 2015, which is understandable considering the higher risk for head injuries in popular American sports such as ice hockey or American football and people's fear associated with this risk...
September 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/28858057/effects-of-six-weeks-sprint-strength-and-agility-training-on-body-composition-cardiovascular-and-physiological-parameters-of-male-field-hockey-players
#15
Hanjabam Barun Sharma, Jyotsna Kailashiya
Optimal physiological and cardiovascular characteristics are essential for optimal physical performance. Different types of training regimes affect these characteristics and lead to trainee's adaptation and changes in relevant parameters. In present interventional study we have evaluated effects of six weeks sprint-strength & agility training on such parameters. Twenty four young Indian national hockey players volunteered for this study. BW(weight), BMI, BF (%body fat), LBM (lean body mass), rHR (resting heart rate), rBP (blood pressure), rDP (double-product), P/power (using Running-based Anaerobic Sprint Test), VJ (vertical jump), SP (seated shot-put test), BS (ball-hitting speed), Tm (505-agility test) & VO2max were measured, and changes (d) after specified training regime were studied...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28852793/-cartilage-repair-of-the-knee-joint
#16
REVIEW
B Rath, J Eschweiler, M Betsch, G Gruber
BACKGROUND: Cartilage defects around the knee joint frequently occur in the region of the medial femoral condyle and the retropatellar cartilage surface. The distinction between local cartilage defects and large area degenerative cartilage lesions is very important for both prognosis and surgical therapy. The size and position of the lesion, the underlying pathomechanism and the age of the patient are very important factors which should be considered in the therapy algorithm for optimal cartilage defect restoration...
August 29, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28852426/cross-cultural-adaptation-and-validation-of-spanish-version-of-the-foot-and-ankle-ability-measures-faam-sp
#17
Pablo Cervera-Garvi, Ana Belen Ortega-Avila, Jose Miguel Morales-Asencio, Jose Antonio Cervera-Marin, Rob Roy Martin, Gabriel Gijon-Nogueron
BACKGROUND: The Foot and Ankle Ability Measure (FAAM) is a Patient Reported Outcome (PRO) commonly used to determine the effectiveness of therapeutic interventions for patients with foot and ankle pathologies and associated impairments of body function and structure, activity limitations, and participation restrictions. The aim of this study was to cross-culturally adapt the FAAM into Spanish. METHODS: Cross-cultural adaptation was performed according to the international guidelines of the International Society for Pharmacoeconomics and Outcomes Research...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28841573/pediatric-providers-attitudes-and-practices-regarding-concussion-diagnosis-and-management
#18
Khalida Itriyeva, Ronald Feinstein, Linda Carmine
Background Concussions, a form of mild traumatic brain injury, are a current "hot topic" in sports and medicine, with current research focusing on diagnosis, treatment, and the long-term effects of repeated concussions on development of chronic traumatic encephalopathy. Concussions represent 8.9% of all high school athletic injuries, and pediatricians see many of these patients in their practices, however evolving guidelines and recommendations have resulted in varying practices among providers. Objective To assess how local pediatricians in New York Chapter 2 of the American Academy of Pediatrics (AAP) diagnose and treat concussion patients, and to evaluate the need for continuing education in this area...
August 25, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28823061/validity-and-reliability-of-the-norwegian-translation-of-the-achilles-tendon-total-rupture-score
#19
Ståle Bergman Myhrvold, Øystein Sandnes, Sigurd Erik Hoelsbrekken
PURPOSE: Patient reported outcome measures (PROMs) are increasingly being used in clinical research. The Achilles tendon Total Rupture Score (ATRS) is a PROM designed to assess outcomes in patients with ruptures of the Achilles tendon. The aim of this study was to develop a Norwegian adaption of the ATRS and evaluate its validity and reliability. METHODS: The ATRS was translated into Norwegian in accordance with recommended guidelines. The study included 94 patients treated for Achilles tendon ruptures from January 2010 until February 2013, and the web-based questionnaires were administered twice...
August 19, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28817645/translation-cultural-adaptation-and-validation-of-simplified-chinese-version-of-the-anterior-cruciate-ligament-return-to-sport-after-injury-acl-rsi-scale
#20
Tianwu Chen, Peng Zhang, Yunxia Li, Kate Webster, Jian Zhang, Wei Yao, Yue Yin, Chingchong Ai, Shiyi Chen
PURPOSE: To translate and cross-culturally adapt the anterior cruciate ligament-return to sport after injury (ACL-RSI) into simplified Chinese [ACL-RSI (Cn)]. METHOD: In this diagnostic study, the translation, cross-culturally adaptation, and validation of the ACL-RSI was performed according to international guidelines. A total of 112 patients with ACL reconstruction participated in this study. All were capable of competitive sports before the injury and completed the Knee Injury and Osteoarthritis Outcome (KOOS), the International Knee Documentation Committee (IKDC), the Tampa Scale of Kinesiophobia (TSK), and the Tegner activity score...
2017: PloS One
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