Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?

The purpose of this longitudinal study was to investigate whether recruitment status influences neuromuscular and endurance performances in academy soccer players over a 2-year training period (from Under-16 to Under-18). Thirty-seven male soccer players from an elite academy were selected and divid...

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Main Authors: Maxime Hertzog, Darren J. Paul, George P. Nassis, Joao R. Silva
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Sports
Subjects:
Online Access:http://www.mdpi.com/2075-4663/6/4/108
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author Maxime Hertzog
Darren J. Paul
George P. Nassis
Joao R. Silva
author_facet Maxime Hertzog
Darren J. Paul
George P. Nassis
Joao R. Silva
author_sort Maxime Hertzog
collection DOAJ
description The purpose of this longitudinal study was to investigate whether recruitment status influences neuromuscular and endurance performances in academy soccer players over a 2-year training period (from Under-16 to Under-18). Thirty-seven male soccer players from an elite academy were selected and divided in two cohorts according to their recruitment status: Early Recruitment group (ER; n = 16), training and competing for the academy since Under-14 and Under-15 age groups, and; Late Recruitment group (LR; n = 21) included in the academy training process at Under-16. Squat (SJ) and countermovement jump with (CMJwA) and without arms swing (CMJ), 10-m sprint time, and Vam-Eval test (MAV) were performed in three successive occasions always pre-season (Under-16, Under-17 and Under-18 age groups, T1, T2, and T3 respectively). A two-way (recruitment status × time) analysis of variance with repeated measurements was performed as well as the magnitude of difference using both effect size and magnitude-based inferences. There was no difference between ER and LR for MAV, 10 m-sprint, and SJ from T1 to T3. However, LR players presented non-significant small and possibly greater improvement in CMJ (ES = 0.4) and CMJwA (ES = 0.4) than ER players at T2. These data indicate that early recruitment is not likely to result in greater physical performance improvement at the age of 18.
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spelling doaj.art-fc850953776a47abb13e7b65821df07f2022-12-22T04:00:16ZengMDPI AGSports2075-46632018-09-016410810.3390/sports6040108sports6040108Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?Maxime Hertzog0Darren J. Paul1George P. Nassis2Joao R. Silva3National Sports Medicine Programme, Excellence in Football Project, Aspetar-Orthopedic and Sports Medicine Hospital, Sports City, 29222 Doha, QatarNational Sports Medicine Programme, Excellence in Football Project, Aspetar-Orthopedic and Sports Medicine Hospital, Sports City, 29222 Doha, QatarNational Sports Medicine Programme, Excellence in Football Project, Aspetar-Orthopedic and Sports Medicine Hospital, Sports City, 29222 Doha, QatarNational Sports Medicine Programme, Excellence in Football Project, Aspetar-Orthopedic and Sports Medicine Hospital, Sports City, 29222 Doha, QatarThe purpose of this longitudinal study was to investigate whether recruitment status influences neuromuscular and endurance performances in academy soccer players over a 2-year training period (from Under-16 to Under-18). Thirty-seven male soccer players from an elite academy were selected and divided in two cohorts according to their recruitment status: Early Recruitment group (ER; n = 16), training and competing for the academy since Under-14 and Under-15 age groups, and; Late Recruitment group (LR; n = 21) included in the academy training process at Under-16. Squat (SJ) and countermovement jump with (CMJwA) and without arms swing (CMJ), 10-m sprint time, and Vam-Eval test (MAV) were performed in three successive occasions always pre-season (Under-16, Under-17 and Under-18 age groups, T1, T2, and T3 respectively). A two-way (recruitment status × time) analysis of variance with repeated measurements was performed as well as the magnitude of difference using both effect size and magnitude-based inferences. There was no difference between ER and LR for MAV, 10 m-sprint, and SJ from T1 to T3. However, LR players presented non-significant small and possibly greater improvement in CMJ (ES = 0.4) and CMJwA (ES = 0.4) than ER players at T2. These data indicate that early recruitment is not likely to result in greater physical performance improvement at the age of 18.http://www.mdpi.com/2075-4663/6/4/108long-termteam sportjumpspeedaerobic
spellingShingle Maxime Hertzog
Darren J. Paul
George P. Nassis
Joao R. Silva
Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
Sports
long-term
team sport
jump
speed
aerobic
title Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
title_full Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
title_fullStr Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
title_full_unstemmed Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
title_short Does Early Recruitment Predict Greater Physical Performance in Academy Soccer Players?
title_sort does early recruitment predict greater physical performance in academy soccer players
topic long-term
team sport
jump
speed
aerobic
url http://www.mdpi.com/2075-4663/6/4/108
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