Dados do Trabalho

Título

EFFECTS OF DIFFERENT TRAINING LOAD MAGNITUDES ON SLEEP PATTERN AND MOOD STATE IN YOUNG SOCCER PLAYERS

Introdução

Young athletes are exposed to successive periods of changes in training loads, which can affect their sleep-related health and mood states.

Objetivo

To analyze the effect of different training load magnitudes on sleep patterns and mood states in young soccer players

Métodos

13 young soccer players (15.93 ±0.59 years; 68.70 ±6.12 kg; 1.75 ±0.07 m; 22.30 ±0.97 kg/m²), were evaluated by 3 weeks of training during a pre-season. The external training load (ETL) was verified by the PlayerLoad method, while the internal training load (ITL) was determined by the Subjective Perceived Effort of session (sRPE) method. Pulse actigraphy was used to monitor sleep. Sleep variables, including time in bed (TIB), total sleep time (TST), sleep latency (SL), wake after sleep onset (WASO) and sleep efficiency (SE) were evaluated on every night. Mood state was assessed using the Brunel Mood Scale (BRUMS). Repeated measures ANOVA was used to verify the effect of time. Friedman's test was used for data that did not meet normality assumptions (sleep latency and mood states). Bonferroni's post-hoc was used to verify point differences.

Resultados

Week 2 showed higher ETL and ITL compared to weeks 1 and 3 (p < 0.001). There was a significant improvement in sleep during week 2 (TIB: +35 min, p = 0.044; TST: +46 min, p = 0.003; SL: -5 min, p = 0.001; SE: +3%, p = 0.019). There was no difference in the BRUMS scale component: tension (p = 0.378), depression (p = 0.311), anger (p = 0.148), vigor (p = 0.178), fatigue (p = 0.063) and confusion (p = 0.630 ) during the three weeks analyzed.

Conclusões

During a microcycle with higher training loads there was no change in the mood state of athletes and possibly the longer total sleep time may, at least in part, explain this finding.

Palavras -chave

Actigraphy; Physical training; workload; Football