| Autor: |
Wall, Sean P., Mattacola, Carl G., Swanik, C. Buz, Levenstein, Susan |
| Zdroj: |
Journal of Sport Rehabilitation; Apr2003, Vol. 12 Issue 1, p1-12, 12p |
| Abstrakt: |
Context: Overreaching can be beneficial, but there is a risk of overtraining. Objective: To investigate the difference in sleep efficiency between overreached and nonoverreached swimmers. Design: Repeated-measures, between-subjects. Swimmers were determined to be overreaching if 2 or more of their consecutive weekly swim times increased by 5% or more from baseline. Participants: 9 competitive high school and university sprinter swimmers. Intervention: 24-h wrist actigraph. Main Outcome Measure: Sleep efficiency as measured by the actigraph. Results: There was a significant difference in sleep efficiency on night 1 between the overreached and nonoverreached swimmers (P = .008), as well as in their times after averaging over all 5 trials and adjusting for baseline (P = .016). By the fourth swim trial, the overreached swimmers had significantly slower swim times than those of the nonoverreached swimmers (P = .001). Conclusions: Sleep efficiency shows potential as an objective, noninvasive predictor and monitor of overreaching in swimmers. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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