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Relative Age effect in sports

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https://www.readbyqxmd.com/read/28922211/acute-effects-of-ammonia-inhalants-on-strength-and-power-performance-in-trained-men
#1
Sandro Bartolomei, Federico Nigro, Gubellini Luca, Semprini Gabriele, Simone Ciacci, Jay R Hoffman, Franco Merni
The aim of the present study was to investigate the influence of ammonia inhalants on lower body power and maximal isometric strength in trained men. Twenty experienced resistance trained men (age = 26.7 ± 3.7 y; body weight = 80.59 ± 9.0 kg; body height = 179.5 ± 5.7 cm) were tested for counter movement jump power (CMJP), maximal force and rate of force development (pRFD20) expressed during an isometric mid-thigh pull (IMTP). Assessments were performed using either an ammonia salt inhalants (AI), a placebo (PL) or no inhalants (N)...
September 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28922016/high-degree-of-variability-in-reporting-of-clinical-and-patient-reported-outcomes-after-hip-arthroscopy
#2
Austin V Stone, Cale A Jacobs, T David Luo, Molly C Meadows, Shane J Nho, Allston J Stubbs, Eric C Makhni
BACKGROUND: Hip arthroscopy for the treatment of intra-articular pathology is a rapidly expanding field. Outcome measures should be reported to document the efficacy of arthroscopic procedures; however, the most effective outcome measures are not established. PURPOSE: To evaluate the variability in outcomes reported after hip arthroscopy and to compare the responsiveness of patient-reported outcome (PRO) instruments. STUDY DESIGN: Systematic review...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28918691/measuring-musculoskeletal-pain-in-infants-children-and-adolescents
#3
Zoe A Michaleff, Steven J Kamper, Jennifer N Stinson, Lise Hestbaek, Chris M Williams, Paul Campbell, Kate M Dunn
Synopsis Accurate, reliable, and timely assessment of pain is critical for effective management of musculoskeletal pain conditions. The assessment of pain in infants, children, and adolescents with and without cognitive impairment can be particularly challenging for clinicians for a number of reasons, including factors related to: the consultation (eg, heterogeneous patient population, time constraints), the clinician (eg, awareness / knowledge of available pain scales), standardised assessment scales (eg, availability, psychometric properties, and application of each scale) the patient (eg, developmental stage, ability to communicate), and the context in which the interaction takes place (eg, familiarity with the setting and physiological and psychological state)...
September 16, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#4
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28900350/influence-of-physical-activity-and-interest-for-food-and-sciences-versus-weight-disorders-in-children-aged-8-to-18-years
#5
REVIEW
A Faik, E Vanderhulst, I Rossem, D Devroey
INTRODUCTION: Being overweight and obesity are a growing problem and are often related to a lack of physical activity among younger people. This study aims to describe the prevalence of weight disorders in Belgian schoolchildren. Secondly, this study examines the association between physical activity, weight disorders and the interest in food and sciences. METHODS: We examined 525 children aged between 8 and 18 years old, who attended the Brussels Food Fair or the Belgian Science Day in 2013...
June 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28898137/pain-related-fear-and-its-disabling-impact-in-hypermobile-adolescents-with-chronic-musculoskeletal-pain
#6
Thijs van Meulenbroek, Ivan P J Huijnen, Carlijn M H Wiertz, Jeanine A Verbunt
Study Design Cross-sectional study. Background Chronic musculoskeletal pain (CMP) has a negative impact on physical functioning. During adolescence joint hypermobility is a potential risk factor for developing CMP and pain-related fear contributes to the persistence of CMP. Whether pain-related fear and being hypermobile are related and even reinforce each other, resulting in a stronger association with perceived level of disability, is still unknown. Objectives To evaluate whether pain-related fear has a stronger association with disability in hypermobile compared to non-hypermobile adolescents with CMP...
September 12, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28894644/anthropometric-physical-function-and-general-health-markers-of-masters-athletes-a-cross-sectional-study
#7
Samantha Fien, Mike Climstein, Clodagh Quilter, Georgina Buckley, Timothy Henwood, Josie Grigg, Justin W L Keogh
Once the general decline in muscle mass, muscle strength and physical performance falls below specific thresholds, the middle aged or older adult will be diagnosed as having sarcopenia (a loss of skeletal muscle mass and strength). Sarcopenia contributes to a range of adverse events in older age including disability, hospitalisation, institutionalisation and falls. One potentially relevant but understudied population for sarcopenia researchers would be Masters athletes. Masters sport is becoming more common as it allows athletes (typically 40 years and older) the opportunity to participate in individual and/or team sports against individuals of similar age...
2017: PeerJ
https://www.readbyqxmd.com/read/28876477/a-scoping-review-to-address-the-culture-of-concussion-in-youth-and-high-school-sports
#8
Kelly Sarmiento, Zoe Donnell, Rosanne Hoffman
BACKGROUND: In 2013, the National Academy of Sciences emphasized the need to develop, implement, and evaluate effective large-scale educational strategies to improve the culture of concussion in youth and high school sports. In support of this recommendation, in this article we summarize research on factors that contribute to the culture of concussion. METHODS: We conducted the literature search using 7 electronic databases. We used a scoping review method to identify studies that addressed knowledge, attitudes, behaviors, use of educational resources, and interventions related to concussion among young athletes, coaches, and parents...
October 2017: Journal of School Health
https://www.readbyqxmd.com/read/28875360/-recurrent-instability-and-instability-arthropathy
#9
REVIEW
L Lacheta, S Siebenlist, A B Imhoff, L Willinger
Capsulolabral reconstruction (Bankart repair) is recommended as the first line treatment in young and functionally demanding active patients with anteroinferior shoulder instability, due to the high tendency to recurrent dislocation. This has become established both for arthroscopic and open primary shoulder stabilization with good clinical outcome; nevertheless, recurrence of dislocation is reported in up to 25% of patients. Risk factors for failed surgery are patient (e.g. young age, male gender and contact sports) and surgery (e...
September 5, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28852426/cross-cultural-adaptation-and-validation-of-spanish-version-of-the-foot-and-ankle-ability-measures-faam-sp
#10
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/28806751/the-relative-age-effect-reversal-among-the-national-hockey-league-elite
#11
Luca Fumarco, Benjamin G Gibbs, Jonathan A Jarvis, Giambattista Rossi
Like many sports in adolescence, junior hockey is organized by age groups. Typically, players born after December 31st are placed in the subsequent age cohort and as a result, will have an age advantage over those players born closer to the end of the year. While this relative age effect (RAE) has been well-established in junior hockey and other professional sports, the long-term impact of this phenomenon is not well understood. Using roster data on North American National Hockey League (NHL) players from the 2008-2009 season to the 2015-2016 season, we document a RAE reversal-players born in the last quarter of the year (October-December) score more and command higher salaries than those born in the first quarter of the year...
2017: PloS One
https://www.readbyqxmd.com/read/28800789/indicators-of-poorly-controlled-asthma-and-health-related-quality-of-life-among-school-age-children-in-the-united-states
#12
(no author information available yet)
BACKGROUND: Poorly controlled asthma has far-reaching effects on school-age children and their parents, but little is knownabout the national impact on health-related quality of life (HRQoL). OBJECTIVE: To examine HRQoL associated with asthma and indicators of poorly controlled asthma in the United States. METHODS: This was a cross-sectional analysis of HRQoL among school-age children (age range, 6-17 years) with asthma in the nationally representative 2007-2013 Medical Expenditure Panel Survey (MEPS)...
August 11, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28792297/relative-age-effect-and-academic-timing-in-american-junior-college-baseball
#13
Thomas C Beals, Ovande Furtado, Fabio E Fontana
Previous research has shown that older athletes within age groupings are often perceived to be more talented simply due to advanced maturity, leading to biased selection in higher levels of sports competition, now commonly termed relative age effect (RAE). This study's goals were to determine whether (a) RAE influenced the selection of junior college baseball participants and (b) academic timing ( Glamser & Marciani, 1992 ), in which academic status determines age groupings more than strict age guidelines for college sports, influenced the formation of RAE...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28789630/moderate-endurance-training-marathon-training-effects-on-immunologic-and-metabolic-parameters-in-hiv-infected-patients-the-42-km-cologne-project
#14
Stefan Schlabe, Martin Vogel, Christoph Boesecke, Carolynne Schwarze-Zander, Jürgen K Rockstroh, Christian Körner, Klara Brixius, Jan-Christian Wasmuth
BACKGROUND: Improved treatment options of HIV have resulted in regular physical activities of many HIV-infected patients. However, data on effects of sports in HIV-patients are scarce. METHODS: 21 HIV-infected persons were monitored prospectively while preparing for a marathon run. Multiple parameters with regard to immunology, quality of life and metabolism were measured at 4 time points (at baseline 1 year before the marathon run, 3 and 6 months after beginning of training, and immediately before marathon)...
August 8, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28769849/an-inverse-relative-age-effect-in-male-alpine-skiers-at-the-absolute-top-level
#15
Øyvind Bjerke, Arve Vorland Pedersen, Tore K Aune, Håvard Lorås
The Relative Age Effect (RAE) can be described as the advantage of being born early after a certain cut-off date within a group of selection. The effect has been found across a wide range of sports and is particularly evident in pre-elite sports and team sports with a high selection pressure. At the absolute top level in team elite sports, the advantage of being relatively older has been reported to disappear, and even reverse, so that the relatively younger athletes are advantaged. In order to further examine such a reversal of the RAE, we investigated the performance of the overall top 50 skiers each year in the alpine World Cup, over a period of 20 years, among men (N = 234) and women (N = 235)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28764939/exercise-related-cognitive-effects-on-sensory-motor-control-in-athletes-and-drummers-compared-to-non-athletes-and-other-musicians
#16
V Bianco, M Berchicci, R L Perri, F Quinzi, F Di Russo
Both playing a musical instrument and playing sport produce brain adaptations that might affect sensory-motor functions. While the benefits of sport practice have traditionally been attributed to aerobic fitness, it is still unknown whether playing an instrument might induce similar brain adaptations, or if a specific musical instrument like drums might be associated to specific benefits because of its high energy expenditure. Since the aerobic costs of playing drums was estimated to be comparable to those of average sport activities, we hypothesized that these two groups might show both behavioral and neurocognitive similarities...
July 29, 2017: Neuroscience
https://www.readbyqxmd.com/read/28759890/maturity-status-influences-the-relative-age-effect-in-national-top-level-youth-alpine-ski-racing-and-soccer
#17
Lisa Müller, Christoph Gonaus, Christoph Perner, Erich Müller, Christian Raschner
Since the relative age effect (RAE) characterizes a problem in all age categories of alpine ski racing and soccer and the fact that, yet, to date the underlying factors have not been well investigated, the aim of the present study was to assess the influence of the biological maturity status on the RAE among youth alpine ski racers (YSR) and soccer players (SP). In total, 183 male and female YSR selected for national final races and 423 male SP selected for Elite Youth Development Centres were investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28756733/relative-age-effect-in-physical-fitness-among-elementary-and-junior-high-school-students
#18
Hiroki Nakata, Miki Akido, Kumi Naruse, Motoko Fujiwara
The present study investigated characteristics of the relative age effect (RAE) among a general sample of Japanese elementary and junior high school students. Japan applies a unique annual age-grouping by birthdates between April 1 and March 31 of the following year for sport and education. Anthropometric and physical fitness data were obtained from 3,610 Japanese students, including height, weight, the 50-m sprint, standing long jump, grip strength, bent-leg sit-ups, sit and reach, side steps, 20-m shuttle run, and ball throw...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28753532/the-longitudinal-association-between-informal-caregiving-and-body-mass-index-in-the-second-half-of-life-findings-of-the-german-ageing-survey
#19
A Hajek, H-H König
OBJECTIVE: We aimed to investigate the relation between informal caregiving and body mass index (BMI) longitudinally. STUDY DESIGN: The data were drawn from wave 2 (2002) to wave 5 (2014) of the German Ageing Survey. This is a representative sample of the community-dwelling population aged 40 years and above in Germany. METHODS: Self-rated BMI was used. Individuals were asked whether they provide informal care on a regular basis. Adjusting for employment status, age, marital status, morbidity and depressive symptoms, fixed effects regressions were used...
July 25, 2017: Public Health
https://www.readbyqxmd.com/read/28752186/low-impact-sports-activities-are-feasible-after-meniscus-transplantation-a-systematic-review
#20
REVIEW
Sue D Barber-Westin, Frank R Noyes
PURPOSE: To determine sports activities achieved after meniscus transplantation and if associations exist between sports activity levels and transplant failure or progression of tibiofemoral osteoarthritis (OA). METHODS: A systematic search was performed using PubMed and Cochrane online databases. Inclusionary criteria were English language, clinical trials published from 1996 through May 2017, minimum 2 years of follow-up, and sports activity data reported. RESULTS: Twenty-eight studies were included in which 1521 menisci were implanted into 1497 patients...
July 27, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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