Interval walking training over 10 years protects against age-associated declines in physical fitness

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K16560
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Sports science
• Research Institution: Shinshu University
• Principal Investigator: MORIKAWA MAYUKO 信州大学, 先鋭領域融合研究群バイオメディカル研究所, 助教(特定雇用) (10596068)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 中高年者 / 体力 / 運動トレーニング / インターバル速歩 / 運動継続 / 炎症関連遺伝子

Outline of Final Research Achievements

We assessed the effects of 10-year continuation of interval walking training (IWT) in older people, suggesting that 20% of initial participants continued IWT over 10 years. In the control group (CNT), VO2peak linearly decreased with advanced aging and the decrease was ～20% in females and males after 10 years. On the other hand, in the 10-year IWT group, VO2peak increased by ～20% for the first 6 month of the IWT and maintained the level along with the following 10 years in females and males. It was 40 % higher in the10-year IWT than in the CNT.
We found that there are no significant differences in the profile of VO2peak between the DO and 10-year IWT group before dropout. VO2peak was significantly higher in the 10-year IWT than other groups. Also, VO2peak was significantly higher in the DO group than in the CNT group. IWT over 10 years protected against age-associated declines in physical fitness in older people. The effect was partially preserved even if they dropped out on the way.

Free Research Field

運動生理学