Comparison of reduced-volume high-intensity interval training and high-volume training on endurance performance in triathletes
Date
2019
Authors
Mallol, M.
Bentley, D.J.
Norton, L.
Norton, K.
Mejuto, G.
Yanci, J.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
International Journal of Sports Physiology and Performance, 2019; 14(2):239-245
Statement of Responsibility
Conference Name
Abstract
Purpose: To investigate changes in physiological and performance variables in triathletes following a 4-wk period of reduced training volume and increased training intensity. Methods: Sixteen moderately trained triathletes were randomly allocated to 2 groups: a control (CON) group, which followed their usual training, or a high-intensity interval training (HIIT) group, which completed 2 HIIT sessions per week during 4 wk of reduced training volume Results: Maximal oxygen consumption (VO 2 max) increased significantly in the HIIT group (P = .03, d = 0.5) but remained unchanged in the CON group. Cycling power at first and second ventilatory thresholds increased significantly in the HIIT subjects (P = .03, d = 1.0) and was unchanged in the CON participants (P = .57). During the simulated triathlon test, pretest–posttest cycling times and average power were unchanged in both groups (P > .05). No significant interactive effects between groups were observed for running time (P = .50). Conclusion: After a 4-wk HIIT program, VO 2 max and power at first and second ventilatory thresholds were found to have increased significantly while cycling and running performance were unchanged, despite an overall reduction in training time. In the present study, performance was only shown to improve with usual (high-volume) training. Summarizing, in order to improve running or cycling performances, high-volume training programs are highly recommended.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2019 Human Kinetics