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https://www.readbyqxmd.com/read/27909408/reliability-validity-and-usefulness-of-30-15-intermittent-fitness-test-in-female-soccer-players
#1
Nedim Čović, Eldin Jelešković, Haris Alić, Izet Rađo, Erduan Kafedžić, Goran Sporiš, Daniel T McMaster, Zoran Milanović
PURPOSE: The aim of this study was to examine the reliability, validity and usefulness of the 30-15IFT in competitive female soccer players. METHODS: Seventeen elite female soccer players participated in the study. A within subject test-retest study design was utilized to assess the reliability of the 30-15 intermittent fitness test (IFT). Seven days prior to 30-15IFT, subjects performed a continuous aerobic running test (CT) under laboratory conditions to assess the criterion validity of the 30-15IFT. End running velocity (VCT and VIFT), peak heart rate (HRpeak) and maximal oxygen consumption (VO2max) were collected and/or estimated for both tests...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27904797/preseason-jump-and-hop-measures-in-male-collegiate-basketball-players-an-epidemiologic-report
#2
Jason Brumitt, Amy Engilis, Dale Isaak, Amy Briggs, Alma Mattocks
BACKGROUND: Injuries are inherent in basketball with lower extremity (LE) injury rates reported as high as 11.6 per 1000 athletic exposures (AEs); many of these injuries result in time loss from sport participation. A recent trend in sports medicine research has been the attempt to identify athletes who may be at risk for injury based on measures of preseason fitness. HYPOTHESIS/PURPOSE: The purpose of this prospective cohort study was to determine if the standing long jump (SLJ) and/or the single-leg hop (SLH) for distance functional performance tests (FPT) are associated with non-contact time loss lower quadrant (LQ, defined as lower extremities or low back) injury in collegiate male basketball players...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#3
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27903590/anterior-cruciate-ligament-derived-stem-cells-transduced-with-bmp2-accelerate-graft-bone-integration-after-acl-reconstruction
#4
Yohei Kawakami, Koji Takayama, Tomoyuki Matsumoto, Ying Tang, Bing Wang, Yutaka Mifune, James H Cummins, Ryan J Warth, Ryosuke Kuroda, Masahiro Kurosaka, Freddie H Fu, Johnny Huard
BACKGROUND: Strong graft-bone integration is a prerequisite for successful graft remodeling after reconstruction of the anterior cruciate ligament (ACL) using soft tissue grafts. Novel strategies to accelerate soft tissue graft-bone integration are needed to reduce the need for bone-tendon-bone graft harvest, reduce patient convalescence, facilitate rehabilitation, and reduce total recovery time after ACL reconstruction. HYPOTHESIS: The application of ACL-derived stem cells with enhanced expression of bone morphogenetic protein 2 (BMP2) onto soft tissue grafts in the form of cell sheets will both accelerate and improve the quality of graft-bone integration after ACL reconstruction in a rat model...
November 30, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27900583/does-elite-sport-degrade-sleep-quality-a-systematic-review
#5
REVIEW
Luke Gupta, Kevin Morgan, Sarah Gilchrist
BACKGROUND: Information on sleep quality and insomnia symptomatology among elite athletes remains poorly systematised in the sports science and medicine literature. The extent to which performance in elite sport represents a risk for chronic insomnia is unknown. OBJECTIVES: The purpose of this systematic review was to profile the objective and experienced characteristics of sleep among elite athletes, and to consider relationships between elite sport and insomnia symptomatology...
November 29, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27900317/does-early-career-achievement-lead-to-earlier-death-assessment-of-the-precocity-longevity-effect-in-professional-basketball-players
#6
Nick Wattie, Srdjan Lemez, Chris I Ardern, Michael Rotondi, Joseph Baker
OBJECTIVES: To examine the precocity-longevity (P-L) effect in North American professional basketball players who debuted between 1946 and 1979, and to determine whether playing position and decade of play influenced the relationship between age of career achievements and life span. METHODS: A total of 1852 players were evaluated from a recognized sports archive (i.e., http://sports-reference.com), which provided information on date of birth, death, and career debut, playing position, and indicators of achievement (i...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/27900297/effects-of-lymphatic-drainage-and-local-cryo-exposition-regeneration-after-high-intensive-exercises
#7
Michael Behringer, Diana Jedlicka, Molly McCourt, Matthias Ring, Joachim Mester
BACKGROUND: Recovery from exercise and competition is important in sports medicine, particularly when rest periods are short. The objective is to determine the efficacy of cryo exposition (CRY) and manual lymphatic drainage (MLD) to hasten short term recovery of muscle performance after eccentric contractions. METHODS: In a randomized controlled trial, 30 healthy sport students (21 males, 9 females; age: 25.7±2.8 years) performed 4×20 eccentric contractions of knee extensors, followed by 30 min MLD, CRY, or rest (RST) under controlled laboratory environment...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27899345/ethics-of-genetic-testing-and-research-in-sport-a-position-statement-from-the-australian-institute-of-sport
#8
Nicole Vlahovich, Peter A Fricker, Matthew A Brown, David Hughes
As Australia's peak high-performance sport agency, the Australian Institute of Sport (AIS) has developed this position statement to address the implications of recent advances in the field of genetics and the ramifications for the health and well-being of athletes. Genetic testing has proven of value in the practice of clinical medicine. There are, however, currently no scientific grounds for the use of genetic testing for athletic performance improvement, sport selection or talent identification. Athletes and coaches should be discouraged from using direct-to-consumer genetic testing because of its lack of validation and replicability and the lack of involvement of a medical practitioner in the process...
November 29, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27896290/do-clinical-results-and-return-to-sport-rates-after-ulnar-collateral-ligament-reconstruction-differ-based-on-graft-choice-and-surgical-technique
#9
Brandon J Erickson, Gregory L Cvetanovich, Rachel M Frank, Bernard R Bach, Mark S Cohen, Charles A Bush-Joseph, Brian J Cole, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure performed in overhead-throwing athletes of many athletic levels. PURPOSE/HYPOTHESIS: The purpose of this study was to determine whether clinical outcomes and return-to-sport (RTS) rates differ among patients undergoing UCLR based on graft choice, surgical technique, athletic competition level, handedness, and treatment of the ulnar nerve. We hypothesized that no differences would exist in clinical outcomes or RTS rates between technique, graft choice, or other variables...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27895542/effect-of-tart-cherry-juice-on-recovery-and-next-day-performance-in-well-trained-water-polo-players
#10
Rachel McCormick, Peter Peeling, Martyn Binnie, Brian Dawson, Marc Sim
BACKGROUND: Tart Montmorency cherries contain high concentrations of phytochemicals and anthocyanins, which have recently been linked to improved athletic recovery and subsequent performance. To date however, previous work reporting promising results has focused on land-based endurance sports, with any potential benefits to team sports remaining unknown. As such, this investigation set-out to examine the effect of supplemental tart cherry juice (CJ) on recovery and next day athletic performance in highly-trained water-based team sport athletes over seven days...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27895038/the-fragility-of-statistically-significant-findings-from-randomized-trials-in-sports-surgery-a-systematic-survey
#11
Moin Khan, Nathan Evaniew, Mark Gichuru, Anthony Habib, Olufemi R Ayeni, Asheesh Bedi, Michael Walsh, P J Devereaux, Mohit Bhandari
BACKGROUND: High-quality, evidence-based orthopaedic care relies on the generation and translation of robust research evidence. The Fragility Index is a novel method for evaluating the robustness of statistically significant findings from randomized controlled trials (RCTs). It is defined as the minimum number of patients in 1 arm of a trial that would have to change status from a nonevent to an event to alter the results of the trial from statistically significant to nonsignificant. PURPOSE: To calculate the Fragility Index of statistically significant results from clinical trials in sports medicine and arthroscopic surgery to characterize the robustness of the RCTs in these fields...
November 28, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27893369/customized-body-mapping-to-facilitate-the-ergonomic-design-of-sportswear
#12
Mingliang Cao, Yi Li, Yueping Guo, Lei Yao, Zhigeng Pan
A successful high-performance sportswear design that considers human factors should result in a significant increase in thermal comfort and reduce energy loss. The authors describe a body-mapping approach that facilitates the effective ergonomic design of sportswear. Their general framework can be customized based on the functional requirements of various sports and sportswear, the desired combination and selection of mapping areas for the human body, and customized quantitative data distribution of target physiological indicators...
November 2016: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/27889306/return-to-sporting-activity-after-total-hip-arthroplasty-a-survey-of-members-of-the-british-hip-society
#13
Benjamin M Bradley, Stephen J Moul, Fintan J Doyle, Matthew J Wilson
BACKGROUND: Total hip arthroplasty is increasingly performed in younger, more active patients. Thirty-five percent of patients are involved in sports preoperatively, and a desire to return to sporting activity is now a major expectation. Sporting activity potentially risks premature failure of the implant, and there is no consensus or guidelines among British or European surgeons performing total hip arthroplasty in sporting patients. METHODS: The current practice of British Hip Society members was explored through a Web-based survey...
September 28, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27876261/cartilage-repair-strategies-in-the-knee-a-survey-of-turkish-surgeons
#14
Nurzat Elmalı, Reha Tandoğan, Murat Demirel, Murat Bozkurt, Tahsin Beyzadeoglu
OBJECTIVES: The purpose of this study was to analyze the trends in cartilage repair strategies among Turkish orthopedic surgeons for isolated focal (osteo)chondral lesions of the knee joint. MATERIALS AND METHODS: A web-based survey of 21 questions consisting of surgical indications, techniques and time to return to sports was developed to investigate the preferences of members of the TOTBID and the TUSYAD. RESULTS: A total of 147 surgeons answered the questionnaire...
November 18, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27873190/development-of-a-skill-acquisition-periodisation-framework-for-high-performance-sport
#15
REVIEW
Damian Farrow, Sam Robertson
Unlike physical training, skill acquisition does not currently utilise periodisation to plan, monitor and evaluate programs. Development of a skill acquisition periodisation framework would allow for systematic investigation into the acute and longitudinal effectiveness of such interventions. Using the physical training literature as a reference point, a skill-training periodisation framework was developed for use in high-performance sport. Previous research undertaken in skill acquisition was used to provide support for the framework...
November 21, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27863355/changes-in-the-severity-of-aortic-regurgitation-at-peak-effort-during-exercise
#16
José Francisco Forteza Albertí, Marta Noris Mora, Andrés Carrillo López, Pere Pericàs, Lucía Pasamar Márquez, Francisco Javier Calderón Montero, Antonio Rodríguez Fernández
BACKGROUND: Chronic aortic regurgitation can be well tolerated for a long time. Some patients with normal ventricular function can even reach high levels of sporting performance. How the severity of regurgitation may change during exercise, however, is little known, although some studies suggest it diminishes. The present work examines, during exercise, the functional capacity, ventricular function, and regurgitation fraction (RF) in asymptomatic subjects with moderate or severe aortic regurgitation with preserved ejection fraction...
November 10, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27862560/noninvasive-assessment-of-age-gender-and-exercise-effects-on-skeletal-muscle-initial-experience-with-t1-%C3%AF-mri-of-calf-muscle
#17
Xin-Gui Peng, Yuancheng Wang, Shijun Zhang, Yingying Bai, Hui Mao, Gao-Jun Teng, Shenghong Ju
PURPOSE: To prospectively investigate age- and gender-related changes in the fast-twitch (tibialis anterior, TA) and slow-twitch (soleus, SOL) skeletal muscle of healthy rats and volunteers and to compare the exercise-related difference in health volunteers with T1 ρ magnetic resonance imaging (MRI). MATERIALS AND METHODS: In all, 18 rats and 70 humans were involved in this study. For the animal study, T1 ρ relaxation times were measured in the TA and SOL rat muscle with a 3...
November 9, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27858577/long-term-endurance-training-increases-serum-cathepsin-s-and-decreases-il-6-and-hscrp-levels
#18
Michael Sponder, Ioana-Alexandra Campean, Michael Emich, Monika Fritzer-Szekeres, Brigitte Litschauer, Jutta Bergler-Klein, Senta Graf, Jeanette Strametz-Juranek
Cathepsin S (CS) was shown to play a key role in cancer progression, atherosclerosis, heart valve disease, insulin resistance and diabetes mellitus. The present prospective study aimed to investigate the influence of sports on CS, interleukin-6 (Il-6) and high-sensitivity C-reactive protein (hsCRP) levels. Ninety-eight of 109 participants completed the study. Ergometries were performed at baseline and after 8 months to evaluate/quantify the performance gain. Blood samples were taken at baseline and every 2 months...
November 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27857048/myocardial-scarring-after-repair-of-anomalous-origin-of-the-left-coronary-artery-from-pulmonary-artery
#19
(no author information available yet)
OBJECTIVES: Prognosis of patients with anomalous origin of the left coronary artery from pulmonary artery has dramatically improved as a result of both, early diagnosis and improvements in surgical techniques. Post surgical complications are rare and most patients show quick improvement of the left ventricular performance after repair with complete functional recovery within one year after surgery. Exercise-induced electrocardiographic changes have been found in patients postoperatively and scars and perfusion deficits of the left ventricle may not be detected by standard echocardiographic evaluation...
September 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/27856265/bilateral-reverse-total-shoulder-arthroplasty-functional-outcome-and-activities-of-daily-living
#20
Ofer Levy, Joanna Walecka, George Arealis, Oren Tsvieli, Giuseppe Della Rotonda, Ruben Abraham, Ioannis Polyzois, Zac Jurkowski, Ehud Atoun
BACKGROUND: Reverse total shoulder arthroplasty (rTSA) has gained popularity in recent years, providing good shoulder elevation, yet less predictable rotations. Good rotations are crucial for performance of activities of daily living (ADLs), including personal hygiene. Concerns remain regarding bilateral rTSA over lack of rotations bilaterally and resultant difficulties with ADLs. This study examined the outcome of patients with bilateral rTSA in restoration of function and ADLs. METHODS: Data were prospectively collected for 19 patients (15 women, 4 men; 38 shoulders), with a mean age of 74...
November 15, 2016: Journal of Shoulder and Elbow Surgery
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