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Clinical Trial Summary

The aim of the present study was to investigate the effects of cold water immersion (CWI) during post-exercise recovery with different durations and temperatures on heart rate variability (HRV) indices. 100 participants performed a protocol of jumps and a Wingate test, and immediately afterwards were immersed in cold water, according to the characteristics of each group (CG: control; G1: 5' at 9±1°C; G2: 5' at 14±1°C; G3: 15' at 9±1°C; G4: 15' at 14±1°C). Analyses were performed at baseline, during the recuperative technique (TRec) by CWI and 20, 30, 40, 50 and 60 minutes post-exercise. The HRV indices average of all RR intervals in each analysis period (Mean RR), standard deviation of normal R-R intervals (SDNN), square root of the mean of the sum of the squares of differences between adjacent R-R intervals (RMSSD), spectral components of very low frequency (VLF), low frequency (LF) and high frequency (HF), scatter of points perpendicular to the line of identity of the Poincaré Plot (SD1) and scatter points along the line of identity (SD2) were assessed. Comparisons between groups and moments were performed using the technique of analysis of variance for repeated measures in two scheme factors. A significance level of p<0.05 was considered.


Clinical Trial Description

n/a


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT02499640
Study type Interventional
Source Paulista University
Contact
Status Completed
Phase N/A
Start date September 2014
Completion date May 2015

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