Caracterização de demanda fisiológica e contribuição dos sistemas energéticos em protocolos de treinamento com remadores

Abstract

The objective of the study was to measure the contribution of energy systems and characterize Physiological impact of training sessions with ergometer. Twenty subjects (7 rowers amateurs and 13 university students) had three training sessions matched for the total duration (40 min): one continuous (EC = 60% VO2max), one intermittent with short stresses (RST = 9 x 30% [150% VO2max] / 4 '[40% VO2max]) and an intermittent with long efforts (IL = 8 x 2' [80% VO2max] / 3 '[40% VO2max]. VO2 was collected before, during and after exercise, concentration of lactate [Lac], creatine kinase ([CK]), heart rate (HR) and parameters of variability of heart rate (HRV): LH / HF and RMSSD pre-, post- and post-training 24 hours. It found difference between groups, with higher aerobic contribution in the CS compared to the (p <0.001). For [Lac], posttraining of IL was greater than that of EC (p = 0.004). The VFC was different between moments, with a higher value in the post-training, in relation to pre and post 24h (p <0.001). On the other hand, [CK] followed a linear behavior with a significant increase in post- after 24 h (p <0.001). It is concluded that the training sessions resulted in a energy systems, with expressive aerobic predominance and EC, compared to RST and IL. Therefore, the use of continuous and intermittent is feasible when considering 24 hours interval between sessions, sufficient time for the recovery of rowers, regardless of the subjects' practice time and the type of stimulus applied.