Effects of Different Training Amplitudes on Heart Rate and Heart Rate Variability in Young Rowers

Abstract

The aim of this study was to investigate the autonomic nervous system recovery and the psychological response as a result of 3 training amplitudes on heart rate (HR), heart rate variability (HRV), and rate of perceived exertion (RPE) in rowing. Eight young rowers (16.8 ± 1.4 years) performed, in a randomized fashion, 2 sessions of high-intensity interval training, with high and low amplitude and a continuous training (CT) session, with the same exercise duration (10 minutes) and mean intensity (60% of maximal stroke test). The data of HR, HRV, and RPE were collected 5 minutes before, immediately after each session, and 24 hours later. High amplitude promoted higher impact in maximum HR (p ≤ 0.05) and RPE (p < 0.001) when compared with CT. For the time domain HRV variable, there was a statistically significant difference between moments of rest (pretraining or post 24 hours) and posttraining in all training sessions. Originally, we conclude that training with higher load variation between effort and recovery impacts HRV, HR, and RPE with greater intensity, but the younger rowers were ready for new training sessions 24 hours after either training method. Coaches can use the polarized training method, observing the stimulus nature and time required for recovery, because it may be an adequate strategy for the development of rower's conditioning.

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“…However, the volume of oxygen, the heart rate and the lactate concentration were not different between these different conditions. Other articles compared the variation of heart rate with training of different intensities (Vaz, Picanço, & Del Vecchio, 2014). This study concluded that ALFONSO PENICHET-TOMÁS, JOSÉ MANUEL JIMÉNEZ-OLMEDO, BASILIO PUEO, JOSÉ…”

Acute respiratory flow restriction affects average power, but not heart rate and subjective perceived exertion in healthy women

“…Such finding is in line with the data found in this study, since the HR did not present significant changes between the conditions. These outcomes may have resulted from the implementation of oxygen restriction associated with the short period of effort and prolonged rest, which is likely to have not been sufficient to generate differences and resulted in a predominance of the sympathetic nervous system in relation to the parasympathetic, in both conditions similarly (Vaz et al, 2014). Meeuwsen et al (2001) conducted a study with 16 subjects randomized into two groups: one with hypoxia training (simulated altitude of 2500 m) and the other without, both with intensities between 60 and 70%.…”

Acute and chronic effects of high intensity interval exercise on performance and muscle function

“…When taken all-together, such fluctuations of HR in postexercise recovery (reaching + 17 or -15 bpm) are more meaningful for training load evaluation and autonomic activity monitoring than short-term (2 min post-exercise recovery) HRV indices (RMSSD) unlike proposed for longterm (1 to 24 hours post-exercise) HRV indices (Cipryan, Laursen, & Plews, 2016;Vaz, Picanco, & Del Vecchio, 2014). From a health perspective, downhill HIIT appeared to acutely and chronically allow a better HRV profile, which perhaps would be of interest for health applications of HIIT.…”