Sleep duration and physical performance during a 6-week military training course.
J Sleep Res
; 30(6): e13393, 2021 12.
Article
em En
| MEDLINE
| ID: mdl-34031933
ABSTRACT
Sleep is vital in influencing effective training adaptations in the military. This study aimed to assess the relationship between sleep and changes in physical performance over 6â
weeks of military training. A total of 22 officer-trainees (age 24 ± 5 years) from the New Zealand Defence Force were used for this prospective cohort study. Participants wore wrist-actigraphs to monitor sleep, completed subjective wellbeing questionnaires weekly, and were tested for 2.4-km run time-trial, maximum press-up and curl-ups before and after 6â
weeks of training. Average sleep duration was calculated over 36â
nights (610 ± 028 hrmin), and sleep duration at the mid-point (615 hrmin) was used to stratify the trainees into two quantile groups (UNDERS 551 ± 029 hrmin, n = 11) and (OVERS 627 ± 009 hrmin, n = 11). There were no significant group × time interactions for 2.4-km run, press-ups or curl-ups (p > .05); however, small effects were observed in favour of OVERS for 2.4-km run (59.8 versus 44.9 s; d = 0.26) and press-ups (4.7 versus 3.2 reps; d = 0.45). Subjective wellbeing scores resulted in a significant group × time interaction (p < .05), with large effect sizes in favour of the OVERS group for Fatigue in Week 1 (d = 0.90) and Week 3 (d = 0.87), and Soreness in Week 3 (d = 1.09) and Week 4 (d = 0.95). Sleeping more than 615 hrmin per night over 6â
weeks was associated with small benefits to aspects of physical performance, and moderate to large benefits on subjective wellbeing measures when compared with sleeping <â
615 hrmin.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Militares
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Humans
Idioma:
En
Revista:
J Sleep Res
Ano de publicação:
2021
Tipo de documento:
Article