Results 41 to 50 of about 427,440 (290)

The prevalence, influential factors and mechanisms of relative age effects in UK Rugby League. [PDF]

, 2009
Relative age effects (RAEs), reflecting observed inequalities in participation and attainment as a result of annual age-grouping policies in youth sport, are common in most team sports.
Chapman, C, Cobley, S, Cooke, CB, O'Hara, J, Till, K, Wattie, N   +5 more
core   +1 more source

Comprehensive Coach Education Reduces Head Impact Exposure in American Youth Football [PDF]

, 2015
BACKGROUND: Despite little evidence that defines a threshold of head impact exposure or that participation in youth sports leads to long-term cognitive impairments, it is prudent to identify methods of reducing the frequency of head impacts. PURPOSE: To
Dompier, Thomas P., Hayden, Ross, Kerr, Zachary Y., Mensch, James, Valovich McLeod, Tamara C., Yeargin, Susan W.   +5 more
core   +1 more source

Incidence of Concussion in Youth Ice Hockey Players [PDF]

Pediatrics, 2016
BACKGROUND: Ice hockey is a fast-paced collision sport that entails both intentional (ie, body checking) and incidental contact that may involve the head. The objective of this study was to determine the incidence of concussions in relation to games/practices and age among competition-level youth ice hockey players (
Anthony P, Kontos, R J, Elbin, Alicia, Sufrinko, Scott, Dakan, Kylie, Bookwalter, Ali, Price, William P, Meehan, Michael W, Collins   +7 more
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Lactate Profiling and the Agreement Among Various Lactate Threshold Methods in Professional and Youth Soccer Players

Applied Sciences
The lactate threshold (LT) and the associated running velocities are important markers used to define physical readiness and prescribe exercise intensity in athletes. This study examined blood LT during maximal cardiopulmonary exercise testing using four
Marcos Michaelides, Koulla Parpa
doaj   +1 more source

Training load and injury incidence over one season in adolescent Arab table tennis players : a pilot study [PDF]

, 2019
Background: It has been established that injury incidence data and training load in table tennis is somewhat limited. Objectives: The purpose of this study was to analyze and report training load and injury incidence.
Cardinale, Marco, Pullinger, Samuel Andrew, Rejeb, Abdallah, Varamenti, Evdokia   +3 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Relative age effects in German youth A and B men's soccer teams: survival of the fittest?

Frontiers in Sports and Active Living
The study investigates relative age effects (RAE) in German youth soccer (Youth Bundesliga A: January 2004 to December 2005 and B: January 2006 to December 2007; highest league in German youth soccer) and its persistence in third-division players.
Florian Heilmann, Alexander Kuhlig, Oliver Stoll   +2 more
doaj   +1 more source

Consistency of Field-Based Measures of Neuromuscular Control Using Force Plate Diagnostics in Elite Male Youth Soccer Players [PDF]

, 2016
Consistency of field-based measures of neuromuscular control using force-plate diagnostics in elite male youth soccer players. J Strength Cond Res 30(12): 3304–3311, 2016—Deficits in neuromuscular control during movement patterns such as landing are ...
Alentorn-Geli, Barber, Brent, Bunge, Ceroni, Colby, Cordova, Cormack, Croce, Daniel, Ebben, Figueiredo, Flanagan, Friel, Gerodimos, Gregory D. Myer, Gómez-Barrena1, Harrison, Hewett, Hopkins, Hopkins, Jon L. Oliver, Kovaleski, Krosshaug, Lazaridis, Lazaridis, Le Gall, Lephart, Lloyd, Mark BA. De Ste Croix, Maulder, Mickle, Mirwald, Myer, Myer, Opar, Padua, Paul J. Read, Philippaerts, Prapavessis, Price, Quatman, Read, Reid, Rhodri S. Lloyd, Ross, Ross, Ross, Stålbom, Sugimoto, Swartz, Turner, Webster, Wikstrom   +53 more
core   +3 more sources

Overuse Injuries in Youth Football Players

Orthopaedic Journal of Sports Medicine, 2014
Objectives: Youth football players encounter many injuries especially during the school period when they are trying to make scool and football together. Due to consistent team selection in competetion, school matches, academy leaque matches and age group national team matches, as a result of high intensity training at a young age they are extremely ...
Enginsu, Müjdat, Lokmaoğlu, Recep, Hayırlıoğlu, Coşkun, Selimoğlu, Şafak, Efendioğlu, Hüseyin   +4 more
openaire   +1 more source