Development of home-based high-intensity interval training program for cancer survivors.

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K18921
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 58020:Hygiene and public health-related: including laboratory approach
• Research Institution: Hosei University (2021-2022); National Cancer Center Japan (2020)
• Principal Investigator: Katsunori Tsuji 法政大学, スポーツ研究センター, 講師 (80838219)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 乳がん / がんサバイバー / 運動 / 在宅 / 下肢筋力 / モバイルヘルス

Outline of Final Research Achievements

A randomized comparative trial was conducted to examine the effectiveness of mobile device-assisted high-intensity, short-duration, interval training using bodyweight on muscle maintenance and improvement in 50 breast cancer survivors without prior exercise habits (25 in the exercise group, 25 in the non-exercise group). The exercise program involved performing bodyweight movements for 20 seconds followed by 10 seconds of rest, repeated for 8 sets. Maximum leg strength significantly increased in the exercise group compared to the non-exercise group (mean difference of 13.5 kg, p < 0.01). However, no statistically significant differences were observed in weekly physical activity levels (measured in minutes) based on questionnaire data collected before the intervention, immediately after the intervention, at 3 months post-intervention, and at 6 months post-intervention.

Free Research Field

スポーツ健康科学

Academic Significance and Societal Importance of the Research Achievements

これまで、乳がんサバイバーに対する運動研究では、マシンなどを用いた介入研究により実証されているが、専用の器具が必要なため、社会実装が困難である。本研究では、運動習慣のない乳がんサバイバーが生活の場で実施可能な運動とモバイル端末を活用した運動支援を組み合わせたプログラムを開発し、下肢の筋力を向上させることができることを示すことができた。本研究の成果は、現在定まっていない乳がんサバイバーへの運動方法の提案の一つとなることが期待される。