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Relative Age effect in sports

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https://www.readbyqxmd.com/read/29782305/tatami-mats-a-source-of-pitted-keratolysis-in-a-martial-arts-athlete
#1
Anamaria Balić, Zrinka Bukvić Mokos, Branka Marinović, Daniela Ledić Drvar
Dear Editor, Pitted keratolysis (PK), also known as keratosis plantaris sulcatum, is a non-inflammatory, bacterial, superficial cutaneous infection, characterized by many discrete superficial crateriform ''pits'' and erosions in the thickly keratinized skin of the weight-bearing regions of the soles of the feet (1). The disease often goes unnoticed by the patient, but when it is noticed it is because of the unbearable malodor and hyperhidrosis of the feet, which are socially unacceptable and cause great anxiety to many of the patients...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29780834/factors-affecting-the-achievement-of-a-patient-acceptable-symptom-state-1-year-after-anterior-cruciate-ligament-reconstruction-a-cohort-study-of-343-patients-from-2-registries
#2
Eric Hamrin Senorski, Eleonor Svantesson, Susanne Beischer, Alberto Grassi, Ferid Krupic, Roland Thomeé, Kristian Samuelsson
Background: There is insufficient knowledge regarding the influence of concomitant injuries on the recovery of short-term subjective knee function after anterior cruciate ligament (ACL) reconstruction. Purpose: To determine whether patient characteristics, concomitant injuries, and graft choice during ACL reconstruction can predict which patients achieve acceptable knee function 1 year after reconstruction. Study Design: Case-control study; Level of evidence, 3...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29769106/peer-mentor-versus-teacher-delivery-of-a-physical-activity-program-on-the-effects-of-bmi-and-daily-activity-protocol-of-a-school-based-group-randomized-controlled-trial-in-appalachia
#3
Laureen H Smith, Rick L Petosa, Abigail Shoben
BACKGROUND: Rural Appalachian populations have poorer health and fewer positive health-related behaviors compared to other United States populations. Appalachians are the most sedentary U.S. population and teens are particularly sedentary. Obesity prevention through improving physical activity is a top priority in Rural Healthy People 2020. Obesity prevalence among Appalachian teens exceeds the national rates of 13.9% and has consistently been greater than 26%. Organized sports has not been effective at improving daily physical activity or health outcomes for Appalachian teens...
May 16, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29763813/age-and-gymnastic-experience-effects-on-sensory-reweighting-processes-during-quiet-stand
#4
Albert Busquets, Silvia Aranda-Garcia, Blai Ferrer-Uris, Michel Marina, Rosa Angulo-Barroso
BACKGROUND: The relative contribution of sensory inputs to control balance while standing is dynamically adjusted. These sensory reweighting processes could be impacted by age and sport expertise capabilities, especially when the sport emphasizes equilibrium like artistic gymnastics. RESEARCH QUESTION: The aim of this study was to explore the sensory reweighting processes to adjust standing posture in children and adults with different gymnastic expertise (gymnasts, G, and non-gymnast, NG)...
May 8, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29762156/preliminary-use-of-the-physical-and-neurological-examination-of-subtle-signs-for-detecting-subtle-motor-signs-in-adolescents-with-sport-related-concussion
#5
Jaclyn A Stephens, Martha B Denckla, Teri McCambridge, Beth S Slomine, E Mark Mahone, Stacy J Suskauer
Sensitive examination tools are needed to optimize evaluation after sports-related concussion. The Physical and Neurological Examination of Subtle Signs was preliminarily examined for sensitivity to motor changes in a pilot cohort of adolescents aged 13-17 yrs with sports-related concussion. A total of 15 adolescents (5 female adolescents) with sports-related concussion were evaluated up to three times: within 2 wks of injury, approximately 1 mo later (mean, 35 days between visits), and for those not recovered at the second visit, again after clinical recovery (mean, 70 days between the first and last visits for all participants)...
June 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29757974/evidencing-protective-and-risk-factors-for-harmful-alcohol-drinking-in-adolescence-a-prospective-analysis-of-sport-participation-and-scholastic-achievement-in-older-adolescents-from-croatia
#6
Sime Devcic, Damir Sekulic, Divo Ban, Zvonimir Kutlesa, Jelena Rodek, Dorica Sajber
Background : The prevalence of alcohol drinking (AD) in Croatian adolescents is alarming, but there is an evident lack of prospective analyses of the protective/risk factors of AD. This study aimed to prospectively investigate the relationships between scholastic and sport factors and harmful alcohol drinking (HD) in older adolescents. Methods : The participants (n = 644, 53.7% females) were 16 years of age at study baseline and were tested at baseline and again 20 months later (follow-up). The predictors included four variables of scholastic achievement and four factors evidencing involvement in sport...
May 14, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29743982/effects-of-nordic-walking-on-oxidant-and-antioxidant-status-levels-of-calcidiol-and-proinflammatory-cytokines-in-middle-aged-women
#7
Wanda Pilch, Łukasz Tota, Anna Piotrowska, Ewa Śliwicka, Olga Czerwińska-Ledwig, Roxana Zuziak, Łucja Pilaczyńska-Szcześniak
Objectives: Nordic walking (NW) is relatively new and popular type of physical exercise with less studied effects than other sports activities. The aim of the study was to analyze possible changes in somatic indices, oxidant and antioxidant status, interleukins, and calcidiol levels in middle-aged women after a 12-week NW training program. Study Design: In this study, we examined the effects of NW training on selected measures and changes in body weight, fat mass, and calcidiol levels...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29741447/health-effects-of-wrist-loading-sports-during-youth-a-systematic-literature-review
#8
Laura S Kox, P Paul F M Kuijer, Dagmar A J Thijssen, Gino M M J Kerkhoffs, Rick R van Rijn, Monique H W Frings-Dresen, Mario Maas
BACKGROUND: The benefits and risks of performing popular wrist-loading sports at a young age have not been investigated systematically. We aimed to evaluate positive and negative long-term wrist-related health effects of sports performance requiring repetitive wrist loading during youth. METHODS: Six databases were searched for cohort and cross-sectional studies. Three investigators selected studies evaluating quantitatively measured health effects of upper extremities in athletes practicing wrist-loading sports (gymnastics, tennis, volleyball, field hockey, rowing, and judo) for minimally 4 months before the age of 18...
May 9, 2018: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/29736728/effects-and-dose-response-relationship-of-balance-training-on-balance-performance-in-youth-a-systematic-review-and-meta-analysis
#9
REVIEW
Arnd Gebel, Melanie Lesinski, David G Behm, Urs Granacher
BACKGROUND: Effects and dose-response relationships of balance training on measures of balance are well-documented for healthy young and old adults. However, this has not been systematically studied in youth. OBJECTIVES: The objectives of this systematic review and meta-analysis were to quantify effects of balance training (BT) on measures of static and dynamic balance in healthy children and adolescents. Additionally, dose-response relations for BT modalities (e...
May 7, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29721339/the-effect-of-therapeutic-exercise-on-long-standing-adductor-related-groin-pain-in-athletes-modified-h%C3%A3-lmich-protocol
#10
Abbas Yousefzadeh, Azadeh Shadmehr, Gholam Reza Olyaei, Nasrin Naseri, Zahra Khazaeipour
Objective: The Hölmich protocol in therapeutic exercise is the most appropriate method for the treatment of long-standing adductor-related groin pain (LSAGP). Herein, we evaluated a modified Hölmich protocol to resolve the possible limitations intrinsic to the Hölmich protocol in terms of the rate of return to sport and the recovery period for athletes with LSAGP. Design: The study followed a single-blind, before/after study design, where 15 athletes with LSAGP (mean age = 26...
2018: Rehabilitation Research and Practice
https://www.readbyqxmd.com/read/29706716/the-relationship-between-physical-fitness-and-academic-achievement-among-adolescent-in-south-korea
#11
Gun-Soo Han
[Purpose] The purpose of this study was to identify the relationship between physical fitness level and academic achievement in middle school students. [Subjects and Methods] A total of 236 students aged 13-15 from three middle schools in D city, South Korea, were selected using a random sampling method. Academic achievement was measured by students' 2014 fall-semester final exam scores and the level of physical fitness was determined according to the PAPS (Physical Activity Promotion System) score administrated by the Korean Ministry of Education...
April 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29701116/distinct-trajectories-of-athlete-development-a-retrospective-analysis-of-professional-rugby-league-players
#12
Balin Cupples, Donna O'Connor, Stephen Cobley
Contemporary models of athlete development (e.g., Development Model of Sport Participation) suggest attainment benefits from early age multi-sport "sampling" behaviour before progressive transition into "invested" single-sport involvement in teenage years compared to intensive early-age specialisation. However, specific examinations of these development patterns across a number of team sports and cultural contexts remains limited. This study involved a large sample of professional Australian Rugby League (RL) players (N = 224) who progressed along the RL system pathways...
April 27, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29695250/effectiveness-of-the-girls-active-school-based-physical-activity-programme-a-cluster-randomised-controlled-trial
#13
Deirdre M Harrington, Melanie J Davies, Danielle H Bodicoat, Joanna M Charles, Yogini V Chudasama, Trish Gorely, Kamlesh Khunti, Tatiana Plekhanova, Alex V Rowlands, Lauren B Sherar, Rhiannon Tudor Edwards, Thomas Yates, Charlotte L Edwardson
BACKGROUND: Globally, adolescent girls' physical activity (PA) levels are low. The 'Girls Active' secondary school-based programme, developed by the Youth Sport Trust, aims to increase PA in adolescent girls. This paper explores the effectiveness of the 'Girls Active' school-based PA programme. METHODS: A random sample of girls aged 11-14 from 20 secondary schools (Midlands, UK) participated in a two-arm cluster randomised controlled trial. Ten schools received Girls Active and 10 continued with usual practice...
April 25, 2018: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/29692955/the-reliability-of-vertical-jump-tests-between-the-vertec-and-my-jump-phone-application
#14
Vanessa R Yingling, Dimitri A Castro, Justin T Duong, Fiorella J Malpartida, Justin R Usher, Jenny O
Background: The vertical jump is used to estimate sports performance capabilities and physical fitness in children, elderly, non-athletic and injured individuals. Different jump techniques and measurement tools are available to assess vertical jump height and peak power; however, their use is limited by access to laboratory settings, excessive cost and/or time constraints thus making these tools oftentimes unsuitable for field assessment. A popular field test uses the Vertec and the Sargent vertical jump with countermovement; however, new low cost, easy to use tools are becoming available, including the My Jump iOS mobile application (app)...
2018: PeerJ
https://www.readbyqxmd.com/read/29691685/adherence-and-health-literacy-as-related-to-outcome-of-patients-treated-for-rheumatoid-arthritis-analyses-of-a-large-scale-observational-study
#15
J G Kuipers, M Koller, F Zeman, K Müller, J U Rüffer
BACKGROUND: Disabilities in daily living and quality of life are key endpoints for evaluating the treatment outcome for rheumatoid arthritis (RA). Factors possibly contributing to good outcome are adherence and health literacy. METHODS: The survey included a representative nationwide sample of German rheumatologists and their patients with RA. The physician questionnaire included the disease activity score (DAS28) and medical prescriptions. The patient questionnaire included fatigue (EORTC QLQ-FA13), health assessment questionnaire (HAQ), quality of life (SF-12), health literacy (HELP), and patients' listings of their medications...
April 24, 2018: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29689117/relative-age-effects-in-international-age-group-championships-a-study-of-spanish-track-and-field-athletes
#16
Javier Brazo-Sayavera, María Asunción Martínez-Valencia, Lisa Müller, Georgios Andronikos, Russell J J Martindale
The relative age effect is a well-researched phenomenon, however there is still a dearth of understanding in track and field and female sport. This study investigated the role of relative age on selection for international competition of Spanish age group athletes between 2006-2014. Six hundred and forty two athletes competed for Spain at U20 or U18 age group international competition (n = 359 males; 283 females) across 9 years. The birthdates of these athletes were compared against the population of registered athletes at that time (14,502 males; 10,096 females)...
2018: PloS One
https://www.readbyqxmd.com/read/29682219/cardiovascular-disease-related-mirnas-expression-potential-role-as-biomarkers-and-effects-of-training-exercise
#17
REVIEW
Simona Ultimo, Giorgio Zauli, Alberto M Martelli, Marco Vitale, James A McCubrey, Silvano Capitani, Luca M Neri
Cardiovascular diseases (CVDs) are one of the most important causes of mortality worldwide, therefore the need of effective preventive strategies is imperative. Aging is associated with significant changes in both cardiovascular structure and function that lower the threshold for clinical signs and symptoms, making older people more susceptible to CVDs morbidity and mortality. microRNAs (miRNAs) modulate gene expression at post-transcriptional level and increasing evidence has shown that miRNAs are involved in cardiovascular physiology and in the pathogenesis of CVDs...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29672644/the-relative-age-effect-is-larger-in-italian-soccer-top-level-youth-categories-and-smaller-in-serie-a
#18
Paolo Riccardo Brustio, Corrado Lupo, Alexandru Nicolae Ungureanu, Riccardo Frati, Alberto Rainoldi, Gennaro Boccia
The relative age effect (RAE; i.e., an asymmetry in the birth distribution) is a bias observed in sport competitions that may favour relatively older athletes in talent identification. Therefore, the aim of this study was to investigate the presence of RAE in elite soccer players competing in the Italian championships, even considering the discriminations of younger and older Serie A players (in relation to the median age of the sample), and different positional roles (i.e., goalkeeper, defender, midfielder, forward) for each observed category...
2018: PloS One
https://www.readbyqxmd.com/read/29668813/factors-influencing-the-impact-of-oral-health-on-the-daily-activities-of-adolescents-adults-and-older-adults
#19
Jaqueline Vilela Bulgareli, Eduardo Tanajura de Faria, Karine Laura Cortellazzi, Luciane Miranda Guerra, Marcelo de Castro Meneghim, Glaucia Maria Bovi Ambrosano, Antonio Carlos Frias, Antonio Carlos Pereira
OBJECTIVE: Analyze if clinical, sociodemographic and access to dental services variables influence the impact of oral health on the daily activities of adolescents, adults and older adults. METHODS: A cross-sectional study with secondary data from the State Oral Health Survey (SB São Paulo 2015) conducted in 163 cities of São Paulo. A total of 17,560 individuals from three age groups: 15-19-year-old (n = 5,558), 35-44-year-old (n = 6,051), and older people of 65 years or more (n = 5,951) participated in the survey...
2018: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29667530/effects-of-developmental-age-on-symptom-reporting-and-neurocognitive-performance-in-youth-after-sports-related-concussion-compared-to-control-athletes
#20
Donna L Murdaugh, Kim E Ono, Sarah O Morris, Thomas G Burns
There is increased necessity to focus research on school-aged athletes with sports-related concussion (SRC). This study assessed differences in symptom reporting and neurocognitive performance in youth athletes who sustained a sports-related concussion. A total of 1345 concussed and 3529 nonconcussed athletes (ages 8-21) completed the Immediate Post-concussive Assessment and Cognitive Testing (ImPACT). Analyses of covariance were conducted in order to assess differences in neurocognitive performance and symptom reporting between the sports-related concussion and control groups across age ranges...
January 1, 2018: Journal of Child Neurology
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