This study examined the occurrence and nature of repeated-sprint sequences (RSS) in highly-trained young soccer players, as a function of age, playing position and playing time. Time-motion analyses using a global positioning system (GPS) were performed on 99 highly-trained young soccer (U13, U14, U15, U16, U17 and U18) players during 42 international games. Sprint activities were defined as at...

BACKGROUND There is an established risk of injury to young athletes exposed to high training loads. Identifying and monitoring injury risk is essential to aid prevention. The aim of this study was to use the consensus statement to determine the incidence and pattern of injury in 1 English Premier League soccer academy during 1 season. METHODS A prospective cohort study included 181 elite acad...

Fatigue is known to influence dynamic knee joint stability from a neuromuscular perspective, and electromechanical delay (EMD) plays an important role as the feedback activation mechanism that stabilizes the joint. The aim of this study was to investigate the influence of soccer-specific fatigue on EMD in U13-, U15-, and U17-year-old female soccer players. Thirty-six youth soccer players perfor...

The purpose of this study was to analyze the differences in effect high-intensity interval training and fartlek on VO2max players u15 u23 at Pamoso football school Majene Regency, U15 U23 fartlek, interaction between exercises with age against vo2max player District school. This used an experimental method a factorial design research design. totaled 38 people, 18 20 formed into four groups: U23...

An anthropometric and body composition analysis was conducted on 123 competitive young male football players of different age groups (U13; U15; U17 & U19) with at least 4 years training load. 3D measurement were performed by the NX-16 ([TC]2, scanner Cary, North Carolina). Body measured bioelectrical impedance InBody 720 (Biospace Ltd.). Anthropometric characteristics among asymmetries between ...

Zanetti, V, Carling, C, Aoki, MS, Bradley, PS, and Moreira, A. Are there differences in elite youth soccer player work rate profiles congested vs. regular match schedules? J Strength Cond Res 35(2): 473–480, 2021—Official international tournaments which players participate can involve very schedules. Yet, no information regarding physical technical performance during (noncongested) cycles is av...

This study examined (1) the distances and speeds covered during match play for U11 to U16 English Premier League Academy players, (2) the differences in match performance between retained and released players and (3) the effect of calculating speed zones in different ways when analysing match performance. Eighty-one academy outfield players (10-16 years old), competing in 11-a-side matches, wer...

Participation in collision sports such as rugby union has inherent risk of injury. The aim this study was to examine injury patterns and factors adolescent players (U15 years). A prospective surveillance undertaken involving 26 schools (599 male players, mean age 14.7years). Data were collected over the 2016/17 playing season, with injuries classified by body part diagnosis. We explored associa...