The effects of two weeks low-volume self-regulated high-intensity interval training on cardiorespiratory fitness， exercise enjoyment， and intentions to repeat

摘要

This study investigated the effect of low-volume self-regulated high-intensity interval training (SR-HIIT) on cardiorespiratory fitness (CRF)， exercise enjoyment， and intentions to repeat. Ten untrained， physically active adults (five males and five females， age: 20.3 ± 0.5 years) undertook a 2-week control period followed by 2- weeks SR-HIIT (6 x 10 min cycle ergometer sessions). Sessions involved alternate bouts at a rating of perceived exertion of 17 (work) and 11 (recovery)， with bout durations self-regulated by the participant. Maximal aerobic capacity showed a small increase from post-control (3.14 ± 1.03 L.min-1 ) to post-training (3.45 ± 1.14 L.min-1.