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2023 Fiscal Year Final Research Report

Validity of an Intensity Index in High-Intensity Interval Training: Toward the Establishment of a New Index

Research Project

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Project/Area Number 22K21265
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0909:Sports sciences, physical education, health sciences, and related fields
Research InstitutionNational Agency for the Advancement of Sports and Health

Principal Investigator

Shiraki Shunsuke  独立行政法人日本スポーツ振興センター国立スポーツ科学センター, スポーツ科学・研究部, 契約研究員 (30963889)

Project Period (FY) 2022-08-31 – 2024-03-31
Keywordsアネロビックパワーリザーブ / 間欠的高強度運動 / 有酸素性パワー / 無酸素性パワー / 高強度インターバルトレーニング / スプリント
Outline of Final Research Achievements

In this study, we examined the validity and calculation method of a new intensity index (Anaerobic Power Reserve) in high-intensity interval training. First, by using the average power output from a 6-second test and a 3-minute test, the calculation method of Anaerobic Power Reserve was improved in terms of accuracy. Then, we evaluated the validity of Anaerobic Power Reserve and conventional indexes in high-intensity interval training based on the number of completions of two types of intermittent high-intensity exercises. It was suggested that the validity of both was low. Therefore, improving the intensity index considering the physical fitness characteristics of the subjects remains a future challenge.

Free Research Field

スポーツ科学

Academic Significance and Societal Importance of the Research Achievements

高強度インターバルトレーニング(HIIT)の強度指標が確立し,HIITを適切に実施出来るようになれば,効果的なトレーニング処方や新たなHIITプロトコルの開発につながる.それはスポーツ現場においても研究においても価値が高く,双方の乖離の解消にも寄与できる.また,トップアスリートだけではなく,健康増進を目的とした一般の方に対しても有益である.本研究で得られた結果は,新強度指標の開発および確立に向けた貴重な知見であり,今後の研究につながることが期待できる.

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Published: 2025-01-30  

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