Sports Medicine Commons^™

Relative Age Effect Of Female And Male Handball Players Participating In Olympics Games Tokyo 2020, Paweł Krawczyk, Adam Dyjas, Adam Szeląg, Maciej Cedro

Baltic Journal of Health and Physical Activity

Introduction: The aim of this study was to determine whether the relative age effect (RAE) was present among handball players participating in the Tokyo 2020 Olympics. Materials and Methods. The study involved a group of handball players participating in the Tokyo 2020 Olympics. All data was collected from the website of the IHF. The research material consisted of data on the players’ dates of birth, which were broken down by four quarters (Q1: January 1–March 31, Q2: April 1–June 30, Q3: July 1–September 30, Q4: October 1–December 31) and two semesters (S1: January 1–June 30, S2: July 1–December 31). The …

Effect Of Ice Slushy Ingestion And Cold Water Immersion On Thermoregulatory Behavior, Hui C. Choo, Jeremiah J. Peiffer, João P. Lopes-Silva, Ricardo N. O. Mesquita, Tatsuro Amano, Narihiko Kondo, Chris R. Abbiss

Research outputs 2014 to 2021

Two studies were conducted to examine the effects of ice slushy ingestion (ICE) and cold water immersion (CWI) on thermoregulatory and sweat responses during constant (study 1) and self-paced (study 2) exercise. In study 1, 11 men cycled at 40–50% of peak aerobic power for 60 min (33.2 ± 0.3C, 45.9 ± 0.5% relative humidity, RH). In study 2, 11 men cycled for 60 min at perceived exertion (RPE) equivalent to 15 (33.9 ± 0.2C and 42.5 ± 3.9%RH). In both studies, each trial was preceded by 30 min of CWI (~22C), ICE or no cooling (CON). Rectal temperature (T …

Should School Boards Discontinue Support For High School Football?, Lewis H. Margolis, Greg Canty, Mark Halstead, John Lantos

Manuscripts, Articles, Book Chapters and Other Papers

A pediatrician is asked by her local school board to help them decide whether to discontinue their high school football program. She reviews the available evidence on the risks of football and finds it hopelessly contradictory. Some scholars claim that football is clearly more dangerous than other sports. Others suggest that the risks of football are comparable to other sports, such as lacrosse, ice hockey, or soccer. She finds very little data on the long-term sequelae of concussions. She sees claims that good coaching and a school culture that prioritizes the health of athletes over winning can reduce morbidity from …

Locations Of Physical Activity As Assessed By Gps In Young Adolescents., Jordan A. Carlson, Jasper Schipperijn, Jacqueline Kerr, Brian E. Saelens, Loki Natarajan, Lawrence D. Frank, Karen Glanz, Terry L. Conway, Kelli L. Cain, James F. Sallis, J E. Chapman

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVES: To compare adolescents' physical activity at home, near home, at school, near school, and at other locations.

METHODS: Adolescents (N = 549) were ages 12 to 16 years (49.9% girls, 31.3% nonwhite or Hispanic) from 447 census block groups in 2 US regions. Accelerometers and Global Positioning System devices assessed minutes of and proportion of time spent in moderate to vigorous physical activity (MVPA) in each of the 5 locations. Mixed-effects regression compared MVPA across locations and demographic factors.

RESULTS: Forty-two percent of adolescents' overall MVPA occurred at school, 18.7% at home, 18.3% in other (nonhome, nonschool) locations, and …