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https://www.readbyqxmd.com/read/28715282/player-and-game-characteristics-and-head-impacts-in-female-youth-ice-hockey-players
#1
Nick Reed, Tim Taha, Richard Greenwald, Michelle Keightley
CONTEXT:   Despite the growing popularity of ice hockey among female youth and interest in the biomechanics of head impacts in sport, the head impacts sustained by this population have yet to be characterized. OBJECTIVES:   To describe the number of, biomechanical characteristics of, and exposure to head impacts of female youth ice hockey players during competition and to investigate the influences of player and game characteristics on head impacts. DESIGN:   Cohort study...
July 17, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28713470/differences-in-anthropometry-biological-age-and-physical-fitness-between-young-elite-kayakers-and-canoeists
#2
Daniel López-Plaza, Fernando Alacid, José María Muyor, Pedro Ángel López-Miñarro
The aim of this study was to determine the anthropometric and physical characteristics of youth elite paddlers and to identify the differences between kayakers and canoeists. A total of 171 male paddlers (eighty-nine kayakers and eighty-two canoeists), aged 13.69 ± 0.57 years (mean ± SD) volunteered to participate in this study. The participants completed basic anthropometric assessments (body mass, stretch stature, sitting height, body mass index, maturity level, sum of 6 skinfolds and fat mass percentage) as well as a battery of physical fitness tests (overhead medicine ball throw, counter movement jump, sit-and-reach and 20 m multi-stage shuttle run tests)...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28713281/effectiveness-of-traditional-strength-vs-power-training-on-muscle-strength-power-and-speed-with-youth-a-systematic-review-and-meta-analysis
#3
REVIEW
David G Behm, James D Young, Joseph H D Whitten, Jonathan C Reid, Patrick J Quigley, Jonathan Low, Yimeng Li, Camila D Lima, Daniel D Hodgson, Anis Chaouachi, Olaf Prieske, Urs Granacher
Numerous national associations and multiple reviews have documented the safety and efficacy of strength training for children and adolescents. The literature highlights the significant training-induced increases in strength associated with youth strength training. However, the effectiveness of youth strength training programs to improve power measures is not as clear. This discrepancy may be related to training and testing specificity. Most prior youth strength training programs emphasized lower intensity resistance with relatively slow movements...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28707498/epidemiology-of-injuries-in-men-s-lacrosse-implications-for-level-type-of-play-and-position
#4
Kim Barber Foss, Ed Le Cara, Teri McCambridge, Richard Hinton, Adam Kushner, Greg Myer
OBJECTIVE: The growth in participation in men's lacrosse has increased the likelihood of sport-specific injuries. Despite the exponential growth in men's lacrosse participation, there continues to be a need for specific epidemiological data concerning lacrosse injuries. The sport's rapid growth in participation could have a profound effect on injury prevalence characteristics. The purpose of this literature review is to aggregate available published data on injuries that occur in the sport of men's lacrosse at the youth, high school, collegiate, and professional levels...
July 14, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28701366/evidence-in-support-of-the-call-to-ban-the-tackle-and-harmful-contact-in-school-rugby-a-response-to-world-rugby
#5
REVIEW
Allyson M Pollock, Adam John White, Graham Kirkwood
In a paper published in BJSM (June 2016), World Rugby employees Ross Tucker and Martin Raftery and a third coauthor Evert Verhagen took issue with the recent call to ban tackling in school rugby in the UK and Ireland. That call (to ban tackling) was supported by a systematic review published in BJSM Tucker et al claim that: (1) the mechanisms and risk factors for injury along with the incidence and severity of injury in youth rugby union have not been thoroughly identified or understood; (2) rugby players are at no greater risk of injury than other sports people, (3) this is particularly the case for children under 15 years and (4) removing the opportunity to learn the tackle from school pupils might increase rates of injuries...
July 12, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28696984/the-youth-sports-machine-destructive-juggernaut-or-vehicle-for-success
#6
Peter K Kriz, James P MacDonald
No abstract text is available yet for this article.
July 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28682655/enjoyment-and-behavioral-intention-predict-organized-youth-sport-participation-and-dropout
#7
Lauren A Gardner, Christopher A Magee, Stewart A Vella
BACKGROUND: Dropout from organized youth sport has significant adverse health implications. Enjoyment and behavioral intentions have consistently been linked with participation and dropout; however few studies have investigated these links using a prospective design. This study explored whether enjoyment and intentions to continue predicted dropout behavior at one-year follow-up. METHODS: Questionnaires were completed by 327 regular sports participants (Mage=13...
July 6, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28680897/high-prevalence-of-nontraumatic-shoulder-pain-in-a-regional-sample-of-female-high-school-volleyball-athletes
#8
Kayt E Frisch, Jacob Clark, Chad Hanson, Chris Fagerness, Adam Conway, Lindsay Hoogendoorn
BACKGROUND: Shoulder pain is becoming increasingly problematic in young players as volleyball gains popularity. Associations between repetitive motion and pain and overuse injury have been observed in other overhand sports (most notably baseball). Studies of adult athletes suggest that there is a shoulder pain and overuse problem present in volleyball players, but minimal research has been done to establish rates and causes in juvenile participants. PURPOSE: To establish rates of shoulder pain, regardless of whether it resulted in a loss of playing time, in female high school volleyball players...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28674767/use-of-time-and-health-related-quality-of-life-in-10-to-13-year-old-children-not-all-screen-time-or-physical-activity-minutes-are-the-same
#9
Margarita D Tsiros, Michelle G Samaras, Alison M Coates, Timothy Olds
PURPOSE: To investigate associations between aspects of time use and health-related quality of life (HRQoL) in youth. METHODS: 239 obese and healthy-weight 10- to 13-year-old Australian children completed the Pediatric Quality of Life Inventory (PedsQL™) quantifying their health-related quality of life. Time use was evaluated over four days using the Multimedia Activity Recall for Children and Adolescents (MARCA), a validated 24 h recall tool. The average number of minutes/day spent in physical activity (divided into sport, active transport and play), screen time (divided into television, videogames and computer use), and sleep were calculated...
July 3, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28671853/physiological-and-anthropometric-characteristics-of-top-level-youth-cross-country-cyclists
#10
Alessandro Fornasiero, Aldo Savoldelli, Roberto Modena, Gennaro Boccia, Barbara Pellegrini, Federico Schena
In the literature there is a lack of data about the development of top level athletes in cross-country mountain biking (XCO). The purpose of this study was to analyze anthropometric and physiological characteristics of some of the best XCO bikers aged between 13 and 16. The study involved 45 bikers (26 males and 19 females) belonging to a youth national team. The evaluations, consisting of anthropometric measures, incremental cycling tests (VO2max, PPO, P@RCP), and 30 s Wingate Tests (PMax, PMean), were conducted over a lapse of 4 years...
July 3, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28662190/bone-tissue-blood-lipids-and-inflammatory-profiles-in-adolescent-male-athletes-from-sports-contrasting-in-mechanical-load
#11
Ricardo R Agostinete, João P Duarte, João Valente-Dos-Santos, Manuel J Coelho-E-Silva, Oscar M Tavares, Jorge M Conde, Carlos A Fontes-Ribeiro, Giancarlo Condello, Laura Capranica, Suziane U Caires, Rômulo A Fernandes
Exploring the effect of non-impact and impact sports is particular relevant to understand the interaction between skeletal muscle and bone health during growth. The current study aimed to compare total and regional bone and soft-tissue composition, in parallel to measurements of blood lipid and inflammatory profiles between adolescent athletes and non-athletes. Anthropometry, biological maturity, dual energy X-ray absorptiometry (DXA) scans, training load and lipid and inflammatory profiles were assessed in a cross-sectional sample of 53 male adolescents (20 non-athletes, 15 swimmers and 18 basketball players) aged 12-19 years...
2017: PloS One
https://www.readbyqxmd.com/read/28661825/concussions-in-community-level-rugby-risk-knowledge-and-attitudes
#12
R Kyle Martin, Travis J Hrubeniuk, Christopher D Witiw, Peter MacDonald, Jeff Leiter
BACKGROUND: Rugby is a popular collision sport where participants are at risk of sustaining concussions. Most research focuses on elite-level or youth divisions. Comparatively, little is known about adult community rugby. The aim of this research was to estimate the risk of sustaining a concussion during participation in community-level rugby and summarize the collective knowledge and attitudes toward concussions. HYPOTHESIS: Concussion symptoms will be reported frequently among community-level rugby players and a substantial proportion will report a willingness to continue participation despite the risk...
July 2017: Sports Health
https://www.readbyqxmd.com/read/28651641/examining-the-psychometric-properties-of-a-sport-related-concussion-survey-a-rasch-measurement-approach
#13
Mark Hecimovich, Ida Marais
BACKGROUND: Awareness of sport-related concussion (SRC) is an essential step in increasing the number of athletes or parents who report on SRC. This awareness is important, as there is no established data on medical care at youth-level sports and may be limited to individuals with only first aid training. In this circumstance, aside from the coach, it is the players and their parents who need to be aware of possible signs and symptoms. The aim of this study was to examine the psychometric properties of a parent and player concussion survey intended for use before and after an education campaign regarding SRC...
June 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28639512/the-relationship-between-nairobi-adolescents-media-use-and-their-sexual-beliefs-and-attitudes
#14
Ann Neville Miller, William Kinnally, Hellen Maleche, Nancy Achieng' Booker
Adolescents in sub-Saharan Africa are at risk for contracting HIV. Although media campaigns have educated the population as a whole, few studies are available about the time sub-Saharan African youth spend listening to and viewing sexual messages via the entertainment and informational media. The goals of this project were: 1) to investigate what programming Nairobi adolescents access; and 2) to investigate the association between frequency of access and level of focus on physical relationships with adolescents' perceptions of descriptive norms of peer sexual behaviour, and their attitudes regarding men as sex driven, women as sex objects, and dating as a sport...
June 22, 2017: African Journal of AIDS Research: AJAR
https://www.readbyqxmd.com/read/28632075/-is-marijuana-even-a-drug-a-qualitative-study-of-how-teens-view-marijuana-use-and-why-they-use-it
#15
Bettina Friese
This qualitative study examines how youth in the San Francisco Bay Area perceive marijuana and their motives for using or not using marijuana. Current regular users were more likely to perceive marijuana smoking as an enjoyable activity, comparable to a hobby or sport. Current occasional users commonly reported smoking marijuana when it was offered to them, on special occasions, and sometimes as a result of not wanting to be left out. Most former regular users reported quitting marijuana use due to getting into trouble, being ordered into drug treatment and/or being drug tested...
February 26, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28630582/doubly-disadvantaged-the-relative-age-effect-in-poland-s-basketball-players
#16
Krystian Rubajczyk, Kamil Świerzko, Andrzej Rokita
The aim of this study was to identify the relative age effect (RAE) in young Polish male (n = 3849) and female (n = 3419) basketball players aged 14 to 22 years competing in the elite games of the Polish Youth Championships. The distribution of birth dates, body height, players' match statistics, and the results of teams participating in championships were identified. The RAE was observed in male and female group, regardless of players age. Nevertheless, the greatest disproportion in the distribution of dates of birth was found in U16 group of boys (V = 0...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28628588/youth-sports-and-physical-activity-innovative-perspectives-on-the-role-of-health-care-professionals
#17
John O Spengler, Angela D Smith, Jay E Maddock, Selina M Stasi
No abstract text is available yet for this article.
June 16, 2017: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/28628419/association-of-competition-volume-club-sports-and-sport-specialization-with-sex-and-lower-extremity-injury-history-in-high-school-athletes
#18
Eric G Post, David R Bell, Stephanie M Trigsted, Adam Y Pfaller, Scott J Hetzel, M Alison Brooks, Timothy A McGuine
BACKGROUND: High school athletes are increasingly encouraged to participate in 1 sport year-round to increase their sport skills. However, no study has examined the association of competition volume, club sport participation, and sport specialization with sex and lower extremity injury (LEI) in a large sample of high school athletes. HYPOTHESIS: Increased competition volume, participating on a club team outside of school sports, and high levels of specialization will all be associated with a history of LEI...
June 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28628411/sports-and-the-growing-musculoskeletal-system-sports-imaging-series
#19
Jie C Nguyen, Scott E Sheehan, Kirkland W Davis, Kara G Gill
Increased youth participation in sports has resulted in increased injury tolls due to shifts toward participation in competitive sports at earlier ages, increased training intensity and competition schedules, as well as specialization into one sport. The physiology of the growing musculoskeletal system makes the growing athlete particularly vulnerable to specific types of injuries. Radiologists must understand the differences between pediatric and adult athletes to recognize the particular injuries to which these young athletes are prone...
July 2017: Radiology
https://www.readbyqxmd.com/read/28627293/new-evidence-of-relative-age-effects-in-super-elite-sportsmen-a-case-for-the-survival-and-evolution-of-the-fittest
#20
Benjamin D Jones, Gavin P Lawrence, Lew Hardy
The relative age effect (RAE) describes an overrepresentation of players born early (Q1) in a selection year and is highly prevalent within youth sport pathways. However, a dearth of research has investigated the RAE at the "super-elite" level. The present research assessed the presence of RAE in super-elite performers. Study 1 investigated RAEs in the world's best international Test cricketers (N = 262) over a 20-year period according to a robust and stringent "super-elite" criteria. Results revealed the RAE (Q1) when all disciplines were combined...
June 19, 2017: Journal of Sports Sciences
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