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

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Title: The effects of two weeks low-volume self-regulated high-intensity interval training on cardiorespiratory fitness, exercise enjoyment, and intentions to repeat
Authors: Campbell, Jennifer | Phillips, Shaun M.
Keywords: Sports Health | Intermittent | Perception | Aerobic
Knowledge Area: Educación Física y Deportiva
Issue Date: 2020
Publisher: Universidad de Alicante. Área de Educación Física y Deporte
Citation: Journal of Human Sport and Exercise. 2021, 16(2): 411-423. https://doi.org/10.14198/jhse.2021.162.15
Abstract: 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; 𝑋̅diff 0.31, 95%CI 0.06 L.min-1, d = 0.28, 95%CL 0.11, 0.45). First ventilatory threshold showed a large increase from post-control (65.6 ± 2.1% V̇O2max) to post-training (68.0 ± 2.4% V̇O2max; 𝑋̅diff 2.4, 95%CI 1.2%, d = 0.96, 95%CL 0.27, 1.62). Post-exercise enjoyment showed small (𝑋̅diff 3.5, 95%CI 8.1 AU, d = 0.31) and medium (𝑋̅diff 6.9, 95%CI 6.7 AU, d = 0.68) increases from SR-HIIT session 1-3 and 3-6, respectively. There were trivial to medium increases in intention to repeat SR-HIIT once per week (d = 0.06 to 0.63) and three times per week (d = 0.28 to 0.60). Low-volume SR-HIIT elicits meaningful improvements in CRF, is enjoyable, and facilitates good intentions to repeat, and may be an additional option for implementing HIIT to improve general population health and fitness.
URI: http://hdl.handle.net/10045/106097
ISSN: 1988-5202
DOI: 10.14198/jhse.2021.162.15
Language: eng
Type: info:eu-repo/semantics/article
Rights: This work is licensed under a Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).
Peer Review: si
Publisher version: https://doi.org/10.14198/jhse.2021.162.15
Appears in Collections:Revistas - Journal of Human Sport and Exercise - 2021, Vol. 16, No. 2

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