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https://www.readbyqxmd.com/read/29222948/force-coordination-strategies-in-on-water-single-sculling-are-asymmetries-related-to-better-rowing-performance
#1
John Warmenhoven, Richard Smith, Conny Draper, Andrew Harrison, Norma Bargary, Stephen Cobley
Asymmetries of the rowing stroke cycle have been assessed with reference to kinematics and foot-force measures in laboratory testing environments. It remains unclear how asymmetries in propulsive kinetic measures are related to on-water rowing performance. A new approach for the evaluation of both global and local asymmetries across the entire movement was used to assess the continuous role of asymmetries and whether these change according to level of competitive representation. Twenty seven highly skilled female rowers (national and international competition level), rowing at 32 strokes per minute in a single scull boat were evaluated...
December 9, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29214921/heteropterys-tomentosa-a-juss-toxicological-and-adaptogenic-effects-in-experimental-models
#2
Géssica Alves Fraga, Sikiru Olaitan Balogun, Emilly Della Pascqua, Ruberlei Godinho de Oliveira, Guilherme Botelho, Eduarda Pavan, Thiago da Rosa Lima, Eudes Thiago Pereira Avila, Clarissa de Medeiros Amorim Krueger, Valdir Cechinel Filho, Amílcar Sabino Damazo, Domingos Tabajara de Oliveira Martins, Fabrício Azevedo Voltarelli
BACKGROUND: The constant pursuit of improved athletic performance characterizes high-performance sport and the use of medicinal plants as dietary supplements is becoming widespread among athletes to enhance long-term endurance performance. AIM: The present study evaluated the toxicity of Heteropterys tomentosa (HEHt) and its acute adaptogenic effects. METHODS: The in vitro safety profile was evaluated on CHO-k1 cells using the alamar Blue assay, at concentrations ranging from 3...
December 2017: Nutrition and Health
https://www.readbyqxmd.com/read/29212413/a-lower-extremity-strength-based-profile-of-ncaa-division-i-women-s-basketball-and-gymnastics-athletes-implications-for-knee-joint-injury-risk-assessment
#3
Brennan J Thompson, Curtis S Cazier, Eadric Bressel, Dennis G Dolny
This study aimed to provide a comprehensive strength-based physiological profile of women's NCAA Division I basketball and gymnastic athletes; and to make sport-specific comparisons for various strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings-to-quadriceps ratios, H:Q) was used to elucidate vulnerabilities in these at-risk female athletes. Fourteen NCAA Division I women's basketball and 13 gymnastics athletes performed strength testing of the knee extensors and flexors...
December 7, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29211262/body-mass-index-and-waist-circumference-of-latin-american-adult-athletes-with-intellectual-disability
#4
John T Foley, Meghann Lloyd, Lesley Turner, Viviene A Temple
OBJECTIVES: To examine both body mass index (BMI) status and waist circunference (WC) in a large international sample of adult Special Olympics participants from Latin America. It also explored the association of age and sex with obesity in this population. MATERIALS AND METHODS: BMI and WC records from a total of 4174 (2683 male and 1491 female) participant records from the Special Olympics International Health Promotion database were examined. RESULTS: The prevalence of overweight and obesity was quite high (i...
July 2017: Salud Pública de México
https://www.readbyqxmd.com/read/29210775/isometric-exercise-to-reduce-pain-in-patellar-tendinopathy-in-season-is-it-effective-on-the-road
#5
Ebonie Rio, Craig Purdam, Michael Girdwood, Jill Cook
OBJECTIVE: To investigate the effectiveness of an isometric squat exercise using a portable belt, on patellar tendon pain and function, in athletes during their competitive season. DESIGN: Case series with no requirements to change any aspect of games or training. The object of this pragmatic study was to investigate this intervention in addition to "usual management." A control or sham intervention was considered unacceptable to teams. SETTING: In-season...
November 27, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29209662/prehistoric-women-s-manual-labor-exceeded-that-of-athletes-through-the-first-5500-years-of-farming-in-central-europe
#6
Alison A Macintosh, Ron Pinhasi, Jay T Stock
The intensification of agriculture is often associated with declining mobility and bone strength through time, although women often exhibit less pronounced trends than men. For example, previous studies of prehistoric Central European agriculturalists (~5300 calibrated years BC to 850 AD) demonstrated a significant reduction in tibial rigidity among men, whereas women were characterized by low tibial rigidity, little temporal change, and high variability. Because of the potential for sex-specific skeletal responses to mechanical loading and a lack of modern comparative data, women's activity in prehistory remains difficult to interpret...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29205517/within-day-energy-deficiency-and-reproductive-function-in-female-endurance-athletes
#7
I L Fahrenholtz, A Sjödin, D Benardot, Å B Tornberg, S Skouby, J Faber, J Sundgot-Borgen, A Melin
We aimed to estimate and compare within-day energy balance (WDEB) in athletes with eumenorrhea and menstrual dysfunction (MD) with similar 24-hour energy availability/energy balance (EA/EB). Furthermore, to investigate whether within-day energy deficiency is associated with resting metabolic rate (RMR), body-composition, S-cortisol, estradiol, T3 , and fasting blood glucose. We reanalyzed 7-day dietary intake and energy expenditure data in 25 elite endurance athletes with eumenorrhea (n=10) and MD (n=15) from a group of 45 subjects where those with disordered eating behaviors (n=11), MD not related to low EA (n=5), and low dietary record validity (n=4) had been excluded...
December 5, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29202937/youth-sport-related-concussions-perceived-and-measured-baseline-knowledge-of-concussions-among-community-coaches-athletes-and-parents
#8
Katherine N Nanos, John M Franco, Dirk Larson, Kristin Mara, Edward R Laskowski
OBJECTIVE: To assess concussion knowledge of athletes, coaches, and parents/guardians in a community setting and to understand trends/gaps in knowledge among subgroups to tailor efforts toward creating educational interventions. PARTICIPANTS AND METHODS: This prospective cross-sectional study involved 262 individuals (142 [55%] female): 115 athletes participating in noncontact and contact sports (ages 13-19 years), 15 coaches, and 132 parents. Recruitment occurred from August 30, 2015, through August 30, 2016, at 3 local high schools...
December 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29202636/range-of-motion-and-ankle-injury-history-association-with-sex-in-pediatric-and-adolescent-athletes
#9
Dai Sugimoto, Ronald E McCartney, Robert L Parisien, Jesse Dashe, Dennis R Borg, William P Meehan
BACKGROUND: Ankle sprain is one of the most common musculoskeletal injuries among young athletes, and there remains a gap in the literature regarding susceptibility to such injuries among physically active youth. OBJECTIVE: The primary purpose of this study was to determine the associations between sex, a history of ankle sprain, and ankle range of motion (ROM) in pediatric and adolescent athletes. METHODS: Athletes under the age of 18 years old who presented to a sports injury prevention center underwent ankle ROM measurements including plantarflexion (PF), inversion (IV), and eversion (EV)...
December 4, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29200094/characteristics-of-a-national-level-female-weightlifter-peaking-for-competition-a-case-study
#10
Caleb D Bazyler, Satoshi Mizuguchi, Michael C Zourdos, Kimitake Sato, Ashley A Kavanaugh, Brad H DeWeese, Kevin F Breuel, Michael H Stone
This study investigated physiological and performance changes of a national level 69kg female weightlifter following three competition phases over a 28-week training period. The athlete first trained for a regional championship (weeks 1-12), followed by a local competition (weeks 13-23) and the national championship (weeks 24-28). Body mass, vastus lateralis cross-sectional area, and unloaded and loaded squat jump performance were assessed weekly during each 4-week competition phase. Serum biomarkers, and dynamic mid-thigh pulls were assessed prior to and after each competition phase...
December 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29198737/stabilization-of-the-fourth-metatarsal-cuboid-lateral-lisfranc-injury-early-results-of-an-innovative-technique-using-suture-anchors
#11
Amol Saxena, Deann Hofer
This report presents an innovative surgical technique for the correction of cuboid-metatarsal subluxation at the level of the lateral Lisfranc joint. This stabilization technique reinforces the dorsal fourth tarsometatarsal ligament by incorporating sutures and anchors, establishing a more stable joint. The data from 5 female patients undergoing stabilization using a suture anchor construct were reviewed. All 5 patients were able to resume their activities, including the adolescent athletes. Anatomic reconstruction of the dorsal fourth tarsometatarsal ligament complex can lead to full mechanical and functional stability, which ultimately allows for a return to activity, even in highly demanding sports and athletes...
December 1, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29189341/normative-data-set-of-sway-balance-mobile-assessment-in-pediatric-athletes
#12
Stevi L Anderson, Dustin Gatens, Colette Glatts, Stephen A Russo
OBJECTIVE: To examine and describe normative values for an objective, mobile measure of postural stability commonly used in concussion assessments, SWAY Balance (SWAY Medical, Tulsa, Oklahoma). DESIGN: Retrospective analysis of baseline balance assessments in a healthy pediatric population. SETTING: Baseline assessments completed by certified athletic trainers at an outpatient concussion center or sports medicine offices in Philadelphia, PA and surrounding suburban Pennsylvania and New Jersey or during an athletic trainer's baseline assessment of collegiate athletes at a National Collegiate Athletic Association (NCAA) Division-II University in Fort Lauderdale, FL...
November 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29189336/history-of-high-motion-sickness-susceptibility-predicts-vestibular-dysfunction-following-sport-recreation-related-concussion
#13
Alicia M Sufrinko, Nathan E Kegel, Anne Mucha, Michael W Collins, Anthony P Kontos
OBJECTIVE: To compare vestibular dysfunction at 1 to 10 and 11 to 20 days following sport/recreation-related concussion (SRC) in athletes with and without history of motion sickness susceptibility. Secondary aims of this study were to investigate differences in neurocognitive performance and affective symptoms in these groups. DESIGN: Cross-sectional. SETTING: Concussion Specialty Clinic. PARTICIPANTS: One hundred twenty-four adolescents and adults (82 males, 42 females) aged 14 to 26 (16...
November 20, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29184524/a-qualitative-approach-on-motives-and-aspects-of-risks-in-freeriding
#14
Anika Frühauf, Will A S Hardy, Daniel Pfoestl, Franz-Georg Hoellen, Martin Kopp
Recent research has shown that there are multiple motives for participation in high-risk sport; however these results have come from studies that consider a number of different sports. Therefore, the aim of the present study was to better understand the motives and risk-related aspects of freeriding, using a qualitative approach. Semi-structured interviews were conducted with 40 professional and semi-professional freeride skiers and snowboarders. All freeriders were highly experienced, of different age (19-44 years; 27...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29184508/non-motorized-treadmill-running-is-associated-with-higher-cardiometabolic-demands-compared-with-overground-and-motorized-treadmill-running
#15
Robert B Edwards, Paul J Tofari, Stuart J Cormack, Douglas G Whyte
The aim of this study was to compare the cardiometabolic demands of running on a curved non-motorized treadmill (cNMT) with overground (OVR) and motorized treadmill (MOT) running. Fourteen trained male (n = 7) and female (n = 7) runners ([Formula: see text] 56.6 ± 4.0 mL.kg-1.min-1) participated in the study. Each experimental session consisted of 5 × 6-min bouts of running at progressively higher speeds, separated by 6-min rest (females 9-15 km.h-1; males 10.5-16.5 km.h-1). Oxygen consumption ([Formula: see text]) and heart rate (HR) during the last 2 min of each bout were measured using a portable metabolic cart...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29182457/a-comparison-of-the-isometric-mid-thigh-pull-and-isometric-squat-intraday-reliability-usefulness-and-the-magnitude-of-difference-between-tests
#16
Claire J Brady, Andrew J Harrison, Eamonn P Flanagan, G Gregory Haff, Thomas M Comyns
PURPOSE: This investigation examined the reliability and usefulness of the isometric mid-thigh pull (IMTP) and isometric squat (ISqT) performed at the same knee and hip angles. The scores produced in each test were compared to determine the magnitude of differences between tests. METHODS: Twenty six male and female athletes (23.6±4.3 y; 1.75±0.07 m; 68.8±9.7 kg) performed 2 maximal repetitions of the IMTP and ISqT following a specific warm up. RESULTS: Maximum force, absolute peak force (PF), relative PF, allometrically scaled PF, rate of force development (RFD) (0 - 200 and 0 - 250 ms) and impulse (0 - 300 ms) were deemed reliable (ICC ≥ 0...
November 28, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29182375/multilevel-examination-of-job-satisfaction-and-career-intentions-of-collegiate-athletic-trainers-a-quantitative-approach
#17
Christianne M Eason, Stephanie M Mazerolle, Craig R Denegar, William A Pitney, Jennifer McGarry
CONTEXT:   Recent employment data from collegiate athletic training settings have demonstrated departure trends among men and women. These trends have been hypothesized to be related to work-life balance. However, work-life balance is only 1 aspect of a myriad of factors. Due to the complex nature of the work-life interface, a multilevel examination is needed to better understand the precipitators of departure. OBJECTIVE:   To quantitatively examine factors that may influence collegiate athletic trainers' (ATs') job satisfaction and career intentions via a multilevel examination of the work-life interface...
November 28, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29181262/exercise-manual-therapy-and-postural-re-education-for-uncontrolled-ear-twitching-and-related-impairments-after-whiplash-injury-a-case-report
#18
Kelsey Flanders, Heather Feldner
Background and Purpose: Whiplash Associated Disorders and the interventions used to remediate them are well documented in physical therapy literature. However, specific interventions for spasms of the neck musculature that also involve constant ear twitching have yet to be addressed. The purpose of this case report is twofold. First, to describe comprehensive physical therapy management and outcomes for a subject with uncontrolled ear twitching and related musculoskeletal impairments, and second, to discuss the physical therapist's approach to evidence-based care when faced with a paucity of literature addressing physical therapy interventions for subjects with uncontrolled ear twitching...
October 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29181260/injuries-in-quidditch-a-descriptive-epidemiological-study
#19
Rachel Pennington, Ashley Cooper, Evan Edmond, Alastair Faulkner, Michael J Reidy, Peter S E Davies
Background: Quidditch is a fast growing, physically intense, mixed-gender full-contact sport. Originally adapted from Harry Potter novels, quidditch was first played in 2005 in the USA but is now played worldwide. It is essential to elucidate patterns of injury for the safety and growth of the sport of quidditch. It also provides a unique opportunity to study injury patterns in mixed-gender full-contact sport, an area of increasing importance with the developing culture of transition from single-gender to mixed-gender sports...
October 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29181259/injury-patterns-in-adolescent-elite-endurance-athletes-participating-in-running-orienteering-and-cross-country-skiing
#20
Philip von Rosen, Frida Floström, Anna Frohm, Annette Heijne
Background: Prospective injury registration studies, monitoring adolescent elite athletes, are sparse in running, orienteering and cross-country skiing, yet essential for developing prevention programs. Purpose: The aims of this study were to describe the injury prevalence/incidence, severity grade, injury location, risk factors and the prevalence of illness in running (RU), orienteering (OR) and cross-country skiing athletes (CR). Study Design: Prospective cohort study...
October 2017: International Journal of Sports Physical Therapy
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