Studies comparing the effects of CWI with other recuperative
techniques have found better results during the TRec. The
discrepancy between the findings could be related to the stress
model used. This study used a supramaximal exercise model,
which may have triggered an intense autonomic derangement in
an attempt to meet the metabolic needs. However, a gradual
increase in HRV indices presented 20 min into the recuperative
period demonstrated an attempt to return to baseline values, and
60 min time was sufficient for physically active subjects to receive
a new stimulus from a cardiac autonomic point of view