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https://www.readbyqxmd.com/read/28528891/salivary-steroids-hormones-well-being-and-physical-performance-during-an-intensification-training-period-followed-by-a-tapering-period-in-youth-rhythmic-gymnasts
#1
Kizzy Antualpa, Marcelo Saldanha Aoki, Alexandre Moreira
This study examined the effect of an intensification period (IT; 4weeks; after a habitual training period; HT) followed by a tapering period (TP; 2weeks) on salivary hormones (testosterone - T and cortisol - C), well-being (WB), and physical performance in 23 rhythmic gymnasts (RG; Under-11 group [G1], Under-13 group [G2], and >13 group [G3]). The session-rating of perceived exertion was used to quantify the daily internal training load (ITL). The WB questionnaire was completed daily. Physical performance tests and saliva sampling were carried out at the beginning of the IT (T1), after IT (T2), and after TP (T3)...
May 18, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28493064/evidence-based-prerequisites-and-precursors-of-athletic-talent-a-review
#2
REVIEW
Vladimir B Issurin
Extensive findings related to nature and nurture in determining athletic talent (AT) have been reviewed. Available data demonstrate the important contribution of hereditary factors as well as the crucial importance of environmental prerequisites for identifying and developing AT. Recent publications provide examples of contemporary approaches intended to solve the problem of how to discover and nurture AT. A number of cross-sectional and longitudinal studies highlighted possibilities of revealing a predisposition to certain sports among youthful prospects, but were unable to predict attainment of world-class status...
May 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28476400/postoperative-repeat-dislocation-of-the-posterior-tibial-tendon-a-case-report
#3
Yasunari Ikuta, Nobuo Adachi, Tomoyuki Nakasa, Mitsuo Ochi
Dislocation of the posterior tibial tendon is an uncommon condition. Although surgery is usually performed in most cases of posterior tibial tendon dislocation, postoperative repeat dislocation of the posterior tibial tendon has not been reported in the published data. We report the case of a 27-year-old male patient who experienced repeat dislocation of the posterior tibial tendon after a gymnastic landing, 44 months after initial retinaculum repair. For revision surgery, we reconstructed the flexor retinaculum in conjunction with deepening of the retromalleolar groove, because the groove was hypoplastic...
May 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28474866/the-effects-of-gymnastics-training-on-selected-parameters-of-anaerobic-capacity-in-12-year-old-boys
#4
Piotr Sawicki, Marcin Dornowski, Tomasz Grzywacz, Jan J Kaczor
BACKGROUND: One of the aims of the study was to describe the physiological factors of young boys participating in artistic gymnastic training and evaluate differences between the levels of aerobic and anaerobic efficiency in this group as compared to the control group. METHODS: The young male gymnasts selected to participate in the present study have been (G) participating in the training process since they were six years old (n=12, age 11-12 y). In the control group (n=12, age 11-12 y), boys were participating in physical education classes (C)...
April 26, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28469743/technique-selection-the-coaches-challenge-influencing-injury-risk-during-the-first-contact-hand-of-the-round-off-skill-in-female-gymnastics
#5
Roman Farana, Daniel Jandacka, Jaroslav Uchytil, David Zahradnik, Gareth Irwin
The importance of technique selection on elbow injury risk has been identified for the key round off skill in female gymnastics, with a focus on the second contact limb. The aim of this study was to shift the focus to the first contact limb and investigate the biomechanical injury risk during parallel and T-shape round-off (RO) techniques. Seven international-level female gymnasts performed 10 trials of the RO to back-handspring with parallel and T-shape hand positions. Synchronized kinematic (3D motion analysis system; 247 Hz) and kinetic (two force plates; 1235 Hz) data were collected for each trial...
February 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28448210/body-composition-and-inflammatory-markers-in-pubertal-girls-comparison-between-athletes-and-non-athletic-controls
#6
Jaak Jürimäe, Kristel Võsoberg, Anna-Liisa Tamm, Katre Maasalu, Liina Remmel, Vallo Tillmann
Various inflammation parameters are increased with childhood obesity, but few comparable data are found in lean growing athletes. This study aims to characterize differences in 12 simultaneously measured inflammatory parameters between pubertal rhythmic gymnasts (RG) and untrained controls (UC), and to examine the relationship between body composition and inflammatory markers. Sixty 10-12-year-old girls were divided into RG (n = 30) and UC (n = 30). Fat mass (FM) and fat free mass (FFM) were measured by dual-energy X-ray absorptiometry...
April 27, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28439058/-calcium-and-bone-metabolism-across-women-s-life-stages-stress-fracture-in-female-athletes
#7
Kazuyoshi Yagishita
Stress fractures are common overuse injuries in athletes, especially in long-distance runner, jumping sports and gymnastics in female athletes. The pathology of stress fracture mainly includes repeated biomechanical loading, which leads to bone micro-damage and failure of bone structure. Female athlete triad(FAT), which includes low energy availability with or without an eating disorder, functional hypothalamic amenorrhea, and osteoporosis, is a serious healthcare concern in female athletes. For prevention and treatment of stress fracture, management of biomechanical factors modifying the load applied to a bone is important, and especially in female athletes, management for FAT is one of the important factors...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28437638/motor-expertise-and-performance-in-spatial-tasks-a-meta-analysis
#8
Daniel Voyer, Petra Jansen
The present study aimed to provide a summary of findings relevant to the influence of motor expertise on performance in spatial tasks and to examine potential moderators of this effect. Studies of relevance were those in which individuals involved in activities presumed to require motor expertise were compared to non-experts in such activities. A final set of 62 effect sizes from 33 samples was included in a multilevel meta-analysis. The results showed an overall advantage in favor of motor experts in spatial tasks (d=0...
April 21, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28422954/identification-of-the-contribution-of-contact-and-aerial-biomechanical-parameters-in-acrobatic-performance
#9
Diane Haering, Aurore Huchez, Franck Barbier, Patrice Holvoët, Mickaël Begon
INTRODUCTION: Teaching acrobatic skills with a minimal amount of repetition is a major challenge for coaches. Biomechanical, statistical or computer simulation tools can help them identify the most determinant factors of performance. Release parameters, change in moment of inertia and segmental momentum transfers were identified in the prediction of acrobatics success. The purpose of the present study was to evaluate the relative contribution of these parameters in performance throughout expertise or optimisation based improvements...
2017: PloS One
https://www.readbyqxmd.com/read/28420509/effect-of-a-gymnastics-program-on-sleep-characteristics-in-pregnant-women
#10
Ildikó Kocsis, Tibor Szilágyi, János Turos, Aliz Bakó, Attila Frigy
OBJECTIVE: The quality and quantity of sleep represent important health issues in pregnant women. Sleep disturbances could be associated, beyond alteration of quality of life, with poor pregnancy outcome. Our aim was to investigate the effect of a regular, specific, medium-term physical training program on sleep characteristics in healthy pregnant women. MATERIALS AND METHODS: A total of 132 healthy pregnant women, with gestational age between 18 weeks and 22 weeks, were enrolled in a prospective study...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28416353/eating-disorders-and-weight-control-behaviors-change-over-a-collegiate-sport-season
#11
Alexandra Thompson, Trent Petrie, Carlin Anderson
OBJECTIVES: Determine whether the prevalence of eating disorder classifications (i.e., clinical eating disorder, subclinical eating disorder, and asymptomatic) and pathogenic weight control behaviors (e.g., bingeing, vomiting) change over a five-month sport season. DESIGN: Longitudinal study. METHODS: Female collegiate gymnasts and swimmers (N=325) completed the Questionnaire for Eating Disorder Diagnoses as well as six items from the Bulimia Test-Revised at Time 1 (two weeks into the beginning of their athletic season) and Time 2 (final two weeks of the athletic season); data collections were separated by five months...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28401595/assessing-a-cognitive-music-training-for-older-participants-a-randomised-controlled-trial
#12
Michele Biasutti, Anthony Mangiacotti
OBJECTIVES: In a randomised controlled trial, we investigated whether a cognitive training based on rhythm-music and music improvisation exercises had positive effects on executive functions in older participants. METHODS: Thirty-five residents in a guest home with mild-moderate cognitive impairment and healthy ageing were randomly assigned to an experimental group (n = 18) featuring cognitive music training composed of 12 bi-weekly 70-min sessions, and a control group (n = 17) attended 12 bi-weekly 45-min sessions of gymnastic activities offered by the institute...
April 12, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28379751/the-rise-of-massage-and-medical-gymnastics-in-london-and-paris-before-the-first-world-war
#13
Grégory Quin
Massage and medical gymnastics experienced a rapid institutionalization across Europe and North America between 1850 and 1914. This article explores how this process took place in London and Paris. Physiotherapy developed many of the hallmarks of an independent discipline during this period, including an identified corpus of manipulations and exercises, some autonomous training courses and degrees for future practitioners, and even the creation of departments within several hospitals. The article analyzes all of the processes surrounding this rise, paying special attention to the influence of the ambassadors of Swedish gymnastics (which led to the re-invention of massage across Europe), to the installation of physiotherapy in hospitals in London and in Paris, and to the practical and institutional innovations driven by nurses in England and by doctors in France...
2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
https://www.readbyqxmd.com/read/28374732/-the-comprehensive-approach-to-the-rehabilitative-treatment-of-junior-athletes
#14
N P Stepanenko, T E Levitskaya, E A Tsekhmeistruk, N A Tren'kaeva, S V Tyulyupo, O V Dostovalova, S V Kremeno, S S Shakhova, V D Chekcheeva
AIM: The objective of the present study was the development of the comprehensive program for the medico-psychological follow-up of the male and female junior athletes (rhythmic gymnastics) with the purpose of stabilizing their hormonal and emotional status, as well as improving sport performances based on the use of modern hardware-software technologies. MATERIAL AND METHODS: The comprehensive examination of 72 female athletes at the mean age of 11.5±0.6 years attending R...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28351225/specialization-patterns-across-various-youth-sports-and-relationship-to-injury-risk
#15
Jacqueline Pasulka, Neeru Jayanthi, Ashley McCann, Lara R Dugas, Cynthia LaBella
OBJECTIVES: Current trends among young athletes towards earlier specialization age and year-round training on multiple teams has raised concern for increased injury risk. Our previous analyses showed higher risk for injury in highly specialized young athletes. The goal of this research was to determine whether sports specialization and injury patterns vary by sports type. METHODS: In this clinical case-control study, injured athletes (aged 7-18 years) were recruited from sports medicine clinics and compared to similarly aged uninjured athletes recruited from primary care clinics...
March 29, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28350641/exercise-training-in-a-patient-with-a-left-ventricular-assist-device-and-large-aortic-valve-thrombus
#16
Mijiti Wuliya, Sandrine Peyrot, Costin Radu, Jean-François Deux, Habib Ben Elhaj, Nicolas Lellouche, Thibaud Damy, Soulef Guendouz, Barnabas Gellen
DETAILS OF THE CLINICAL CASE: An aortic valve thrombus (AVT) is a rare complication after HeartMate II implantation. In a 44-year-old man, a large AVT was discovered 6 weeks after implantation of a HeartMate II for severe dilated cardiomyopathy. The aortic valve was permanently closed. DISCUSSION: After a followup of 3 months without embolic events, the patient started a cardiac rehabilitation (CR) program involving aerobic exercise, resistance exercises, group gymnastics, and relaxation exercise, and completed the program without any complications, resulting in a significant functional benefit...
March 24, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28344457/bone-mineralization-in-rhythmic-gymnasts-entering-puberty-associations-with-jumping-performance-and-body-composition-variables
#17
Kristel Võsoberg, Vallo Tillmann, Anna-Liisa Tamm, Katre Maasalu, Jaak Jürimäe
This study examined bone mineral density (BMD) accrual in prepubertal rhythmic gymnasts entering puberty and their age-matched untrained control girls, and associations with baseline jumping performance and body composition over the 3-year period. Whole body (WB) and femoral neck (FN) BMD, WB fat mass (FM) and fat free mass (FFM), countermovement jump (CMJ) and rebound jumps for 15 s (RJ15s) were assessed in 25 rhythmic gymnasts and 25 untrained controls at baseline and after 3-year period. The changes over this period were calculated (Δ scores)...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344451/retrospective-injury-epidemiology-and-risk-factors-for-injury-in-crossfit
#18
Alicia M Montalvo, Hilary Shaefer, Belinda Rodriguez, Tan Li, Katrina Epnere, Gregory D Myer
The objective of the study is to examine injury epidemiology and risk factors for injury in CrossFit athletes. A survey was administered to athletes at four owner-operated facilities in South Florida. Respondents reported number, location of injury, and training exposure from the preceding six months and answered questions regarding potential risk factors for injury. Fifty out of 191 athletes sustained 62 injuries during CrossFit participation in the preceding six months. The most frequently injured locations were the shoulder, knee, and lower back...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28321431/osteochondritis-dissecans-of-the-humeral-capitellum-in-young-athletes-comparison-between-baseball-players-and-gymnasts
#19
Shiro Kajiyama, Satoshi Muroi, Hiroyuki Sugaya, Norimasa Takahashi, Keisuke Matsuki, Nobuaki Kawai, Makoto Osaki
BACKGROUND: Osteochondritis dissecans (OCD) lesions are often observed in the humeral capitellum both in young baseball players and gymnasts. It is generally believed that capitellar OCD in baseball players can be seen on an anteroposterior (AP) radiograph with the elbow in 45° of flexion. However, the mechanism of injury seems to be different in baseball players and gymnasts. Repetitive valgus overload with the elbow in flexion is believed to be the cause of capitellar OCD lesions in baseball players, whereas weightbearing with the elbow in extension may be the cause of OCD in gymnasts...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28318315/the-epidemiology-of-deltoid-ligament-sprains-in-25-national-collegiate-athletic-association-sports-2009-2010-through-2014-2015-academic-years
#20
Thomas J Kopec, Elizabeth E Hibberd, Karen G Roos, Aristarque Djoko, Thomas P Dompier, Zachary Y Kerr
CONTEXT:   Deltoid ligament sprains among collegiate student-athletes have not been extensively investigated. Research regarding the mechanisms, participation-restriction time, and recurrence of deltoid ligament sprains in collegiate student-athletes is lacking. OBJECTIVE:   To describe the epidemiology of deltoid ligament sprains in 25 National Collegiate Athletic Association championship sports. DESIGN:   Descriptive epidemiology study...
April 2017: Journal of Athletic Training
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