Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men
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-vol...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Ammons Scientific Ltd.
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/74809 |
| _version_ | 1848763378598674432 |
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| author | da Silva Machado, D. Costa, E. Ray, H. Beale, L. Chatzisarantis, Nikos de Farias-Junior, L. Hardcastle, Sarah |
| author_facet | da Silva Machado, D. Costa, E. Ray, H. Beale, L. Chatzisarantis, Nikos de Farias-Junior, L. Hardcastle, Sarah |
| author_sort | da Silva Machado, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T11:02:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-74809 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:02:31Z |
| publishDate | 2019 |
| publisher | Ammons Scientific Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-748092019-05-08T03:49:25Z Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men da Silva Machado, D. Costa, E. Ray, H. Beale, L. Chatzisarantis, Nikos de Farias-Junior, L. Hardcastle, Sarah 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. 2019 Journal Article http://hdl.handle.net/20.500.11937/74809 10.1177/0031512518809734 Ammons Scientific Ltd. restricted |
| spellingShingle | da Silva Machado, D. Costa, E. Ray, H. Beale, L. Chatzisarantis, Nikos de Farias-Junior, L. Hardcastle, Sarah Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title | Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title_full | Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title_fullStr | Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title_full_unstemmed | Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title_short | Short-Term Psychological and Physiological Effects of Varying the Volume of High-Intensity Interval Training in Healthy Men |
| title_sort | short-term psychological and physiological effects of varying the volume of high-intensity interval training in healthy men |
| url | http://hdl.handle.net/20.500.11937/74809 |