Key result
Changes in nocturnal autonomic nervous system activity strongly correlated with changes in 400-m freestyle swimming performance at the individual level (R2 = 0.5).
Why the study?
Does nocturnal ANS activity correlate with swimming performance at an individual level?
Observational (n=7)
Does nocturnal ANS activity correlate with swimming performance at an individual level?
Effect estimate: R2 0.5
Nocturnal ANS activity measured by HRV correlates strongly with individual swimming performance during intensive training and tapering.
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Supports nocturnal HRV monitoring in swimmers; hypothesis-generating for performance prediction, requiring prospective validation.
Garet et al. (2004) conducted an observational in Healthy swimmers (n=7). Intensive training and tapering was evaluated on Relationship between changes in performance and changes in HRV indices (R2 0.5). Changes in nocturnal autonomic nervous system activity strongly correlated with changes in 400-m freestyle swimming performance at the individual level (R2 = 0.5).
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