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Post-exercise Heart Rate Variability: Whole-body Cryotherapy vs. Contrast Water Therapy

Abstract : High-intensity training sessions are known to alter cardiac autonomic modulation. The purpose of this study was to compare the effects of whole-body cryotherapy, contrast water therapy and passive recovery on the time course of cardiac autonomic markers following a standardized HIT session. Eleven runners completed a high intensity session followed by one of the following recovery interventions: whole-body cryotherapy, contrast water therapy or passive recovery. Changes in cardiac autonomic modulation were assessed in supine and standing positions during an active tilt test at pre-, post-14h and post-38h. In supine, high-frequency power increased from pre- to post-14h following whole-body cryotherapy (1661.1 +/- 914.5 vs. 2799.0 +/- 948.4 ms (2) , respectively; p=0.023) and contrast water therapy (1906.1 +/- 1327.9 vs. 4174.3 +/- 2762.9 ms (2) , respectively; p=0.004) whereas high frequency power decreased in response to passive recovery (p=0.009). In standing, low-frequency power increased from pre-to post-38h (1784.3 +/- 953.7 vs. 3339.8 +/- 1862.7ms (2) , respectively; p=0.017) leading to an increase in total power from pre- to post-38h (1990.8 +/- 1089.4 vs. 3606.1 +/- 1992.0ms (2) , respectively; p=0.017). Spectral analysis revealed that contrast water therapy appears to be a more efficient recovery strategy than whole-body cryotherapy in restoring cardiac autonomic homeostasis.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03594533
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Soumis le : mercredi 2 mars 2022 - 16:48:39
Dernière modification le : lundi 4 avril 2022 - 14:42:02

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Benoit Sautillet, Pierre Marie Lepretre, Laurent Schmitt, Said Ahmaidi, Guillaume Costalat. Post-exercise Heart Rate Variability: Whole-body Cryotherapy vs. Contrast Water Therapy. International Journal of Sports Medicine, Thieme Publishing, 2021, 42 (11), pp.979-984. ⟨10.1055/a-1312-6914⟩. ⟨hal-03594533⟩

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