Development of low-volume,high-intensity,aerobic-type interval training for elderly Japanese men: a feasibility study |
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Authors: | Yosuke Osuka Muneaki Matsubara Ai Hamasaki Yuji Hiramatsu Hiroshi Ohshima Kiyoji Tanaka |
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Institution: | 1.Research Team for Promoting Independence of the Elderly, Tokyo Metropolitan Institute of Gerontology,Itabashi,Japan;2.Space Biomedical Research Group, Astronaut and Operation Control Unit, Japan Aerospace Exploration Agency,Tsukuba,Japan;3.Faculty of Medicine, Department of Cardiovascular Surgery, University of Tsukuba,Tsukuba,Japan;4.Graduate School of Comprehensive Human Sciences, University of Tsukuba,Tsukuba,Japan;5.Faculty of Health and Sport Sciences, University of Tsukuba,Tsukuba,Japan |
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Abstract: | BackgroundThe purposes of this study were to identify 1) the feasibility of a novel exercise protocol (elderly Japanese male version of high-intensity interval aerobic training: EJ-HIAT) and 2) its preliminary data (%V?O2peak, rating of perceived exertion) in comparison with traditional moderate-intensity continuous aerobic training (MICT).ResultsTwenty-one sedentary elderly men, aged 60–69 years, performed two exercise protocols: EJ-HIAT, consisting of 3 sets of 2?3-min cycling at 75?85%V?O2peak with 1??2-min active rests at 50%V?O2peak between sets, and MICT, consisting of 40-min cycling at 65%V?O2peak. The completion rate, defined as the rate of participants who 1) did not demand withdrawal, 2) were not interrupted by the tester, and 3) did not change the workload during either exercise protocol, of EJ-HIAT was similar to that of MICT (EJ-HIAT: 100%, MICT: 95.2%). Maximal perceived exertion ratings assessed by Borg scale were also similar between EJ-HIAT and MICT. However, objectively measured maximal intensity assessed by %V?O2peak was higher for EJ-HIAT than for MICT (EJ-HIAT: 86.0 ± 5.6%, MICT: 67.1 ± 6.4%).ConclusionThese results suggested that EJ-HIAT has good feasibility and perceived exertion similar to MICT despite having higher objectively measured intensity than MICT. An intervention aimed as identifying the effects of EJ-HIAT on exercise tolerance should be performed in the future. |
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