Accumulated workloads and the acute:chronic workload ratio relate to injury risk in elite youth football players.
Br J Sports Med
; 51(5): 452-459, 2017 Mar.
Article
en En
| MEDLINE
| ID: mdl-27450360
ABSTRACT
AIM:
The purpose of this study was to investigate the relationship between physical workload and injury risk in elite youth football players.METHODS:
The workload data and injury incidence of 32 players were monitored throughout 2 seasons. Multiple regression was used to compare cumulative (1, 2, 3 and 4-weekly) loads and acutechronic (AC) workload ratios (acute workload divided by chronic workload) between injured and non-injured players for specific GPS and accelerometer-derived variablestotal distance (TD), high-speed distance (HSD), accelerations (ACC) and total load. Workloads were classified into discrete ranges by z-scores and the relative risk was determined.RESULTS:
A very high number of ACC (≥9254) over 3â weeks was associated with the highest significant overall (relative risk (RR)=3.84) and non-contact injury risk (RR=5.11). Non-contact injury risk was significantly increased when a high acute HSD was combined with low chronic HSD (RR=2.55), but not with high chronic HSD (RR=0.47). Contact injury risk was greatest when AC TD and ACC ratios were very high (1.76 and 1.77, respectively) (RR=4.98).CONCLUSIONS:
In general, higher accumulated and acute workloads were associated with a greater injury risk. However, progressive increases in chronic workload may develop the players' physical tolerance to higher acute loads and resilience to injury risk.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Traumatismos en Atletas
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Fútbol
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Carga de Trabajo
Tipo de estudio:
Etiology_studies
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Incidence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Humans
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Male
Idioma:
En
Revista:
Br J Sports Med
Año:
2017
Tipo del documento:
Article
País de afiliación:
Reino Unido