Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men
MetadataShow full item record
© The Author(s) 2018. We assessed the short-term effects of varying the volume of high-intensity interval training (HIIT) on psychological and physiological responses of 23 healthy adult males (M = 21 years; M peak oxygen uptake [VO2peak] = 47.2 ml·kg-1·min-1). Participants were randomly assigned to low- and very-low-volume HIIT groups and engaged in nine supervised exercise sessions over three weeks. The low-volume HIIT group performed 8-12 60-second work bouts on a cycle ergometer at the peak power output achieved during the incremental test, interspersed by 75 seconds of low-intensity active recovery. The very-low-volume HIIT performed 4-6 work bouts with the same intensity, duration, and rest intervals. During training, participants’ ratings of perceived exertion (Borg Category Ratio-10 scale) and their affective responses (Feeling Scale -5/+5) during the last 15 seconds of each work bout were recorded. Physiological data were VO2peak, endurance, and anaerobic performance before and after the intervention. Throughout training, participants in the very-low-volume group (relative to the low-volume group) reported lower ratings of perceived exertion in Week 1 (M = 4.1 vs. M = 6.3; p <.01) and Week 3 (M = 4.0 vs. M = 6.2; p <.01), and higher affective response in these same two weeks (Week 1: M = 1.9 vs. M = 0.3; p =.04; Week 3: M = 2.1 vs. M = 0.9; p =.06). Regarding physical fitness, Wingate peak power increased significantly after training in the very-low-volume HIIT group (M = 1,049 W vs. M = 1,222 W; p <.05), but not in the low-volume HIIT group (M = 1,050 W vs. M = 1,076 W). No significant change was found after training in physiological variables of peak power output, VO2peak, and endurance performance. In summary, in this short-term training period, the very-low-volume HIIT enhanced anaerobic capacity and was perceived as less strenuous and more pleasurable than low-volume HIIT.
Showing items related by title, author, creator and subject.
Effects of high intensity interval training on exercise capacity in people with cystic fibrosis: study protocol for a randomised controlled trialSawyer, A.; Cavalheri, Vinicius; Jenkins, S.; Wood, J.; Cecins, N.; Singh, B.; Hill, K. (2018)Background: In people with cystic fibrosis (CF), higher exercise capacity is associated with better health-related quality of life (HRQoL), reduced risk of hospitalisation for a respiratory infection and survival. Therefore, ...
Feeling of pleasure to high-intensity interval exercise is dependent of the number of work bouts and physical activity statusFrazão, D.; De Farias, L.; Dantas, T.; Krinski, K.; Elsangedy, H.; Prestes, J.; Hardcastle, Sarah; Costa, E. (2016)Objectives: To examine the affective responses during a single bout of a low-volume HIIE in active and insufficiently active men. Materials and methods: Fifty-eight men (aged 25.3 ± 3.6 years) volunteered to participate ...
In it together: A qualitative evaluation of participant experiences of a 10-week, group-based, workplace HIIT program for insufficiently active adultsKinnafick, F.; Thogersen-Ntoumani, Cecilie; Shepherd, S.; Wilson, O.; Wagenmakers, A.; Shaw, C. (2018)Using guidance from the reach, efficacy, adoption, implementation, and maintenance evaluation framework, we aimed to qualitatively evaluate the participant experiences of a workplace high-intensity interval training (HIIT) ...