Rated perceived exertion and affective valence in the high intensity interval training: comparison between two popular protocols
Abstract
Introduction and objective: In recent years, high intensity interval training (HIIT) has drawn attention of media and exercise practitioner around the world. Although there are some studies analyzing the physiological and functional effects of HIIT, there are few studies analyzing its perceptual responses, especially in women. Thus, the aim of this study was to analyze and compare the rated of perceived exertion (RPE) and affectivity (AFF) between two popular protocols of HIIT. Materials and methods: Twenty health and untrained women (33.8 ± 10.0 years old; BMI: 24.2 ± 3.8 kg/m²) were included in the sample. The volunteers underwent to randomized two HIIT sessions on stationary bicycle. In each session, one different HIIT protocols was used: Tabata and Wingate. After both sessions, RPE and AFF were measured. The date were analyzed by t student (RPE) and Wilcoxon (AFF) tests. Results: Tabata showed higher PSE values than Wingate (17.5 ± 2.3 vs. 13.8 ± 2.3). No significant differences were observed in the AFF between protocols (-2.9 ± 1.1 vs. -2.2 ± 1.3 for Tabata and Wingate, respectively), however Tabata showed medium effect size over Wingate. Conclusion: Tabata protocol was more exhaustive. The AFF response did not differ significantly between protocols, but Tabata showed a medium effect size than Wingate. Thus, Wingate protocol seems to be more interesting to untrained women.
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