Development of low-volume, high-intensity, aerobic-type interval training for elderly Japanese men: a feasibility study

Yosuke Osuka,Muneaki Matsubara,Ai Hamasaki,Hiroshi Ohshima,Yuji Hiramatsu,Kiyoji Tanaka

doi:10.1186/s11556-017-0184-4

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 (%V̇O2peak, 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%V̇O2peak with 1−2-min active rests at 50%V̇O2peak between sets, and MICT, consisting of 40-min cycling at 65%V̇O2peak. 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 %V̇O2peak 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.Trial registrationUMIN000021185 (February 26, 2016).

Highlights

IntroductionThe 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 (%VO2peak, rating of perceived exertion) in comparison with traditional moderate-intensity continuous aerobic training (MICT)
The purposes of this study were to identify 1) the feasibility of a novel exercise protocol and 2) its preliminary data (%VO2peak, rating of perceived exertion) in comparison with traditional moderate-intensity continuous aerobic training (MICT)
We previously developed an original High-intensity interval training (HIIT) called the Japanese version of high-intensity interval aerobic training (J-HIAT) [13,14,15,16,17], which demonstrated greater improvement of exercise tolerance than moderateintensity continuous aerobic training (MICT) despite involving a lower volume and shorter duration of exercise, suggesting that J-HIAT could provide time-efficient training in sedentary people [17]

Summary

Introduction

The 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 (%VO2peak, rating of perceived exertion) in comparison with traditional moderate-intensity continuous aerobic training (MICT). We previously developed an original HIIT called the Japanese version of high-intensity interval aerobic training (J-HIAT) [13,14,15,16,17], which demonstrated greater improvement of exercise tolerance than MICT despite involving a lower volume and shorter duration of exercise, suggesting that J-HIAT could provide time-efficient training in sedentary people [17]. One consideration when developing the J-HIAT was whether astronauts could participate in exercise training safely, timeefficiently, and feasibly in the international space station [13, 14] We believed that this process could be utilized to develop a more time-efficient exercise program to improve exercise tolerance in elderly people, based on the concept that countermeasures for declining exercise tolerance during space flight could be utilized to prevent declining exercise tolerance with aging

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