Assessment method for lower limb extension force using rate of force development aimed at improving explosive athletic performance

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K21206
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0909:Sports sciences, physical education, health sciences, and related fields
• Research Institution: Shiga University
• Principal Investigator: Zushi Kodayu 滋賀大学, 経済学部, 特任講師 (30963798)
• Project Period (FY): 2022-08-31 – 2024-03-31
• Keywords: 測定評価 / トレーニング / 下肢筋力 / 瞬発的な運動能力

Outline of Final Research Achievements

The applicant has developed a device that calculates rate of force development (RFD) in lower limb extension in real time and has proposed a new RFD that takes into account the time of force exertion.However, the relationship between this RFD and explosive athletic performance in activities such as running and jumping, which form the basis of many sports, has not been clarified.However, the relationship between this RFD and explosive athletic performance in activities such as sprint running and jumping, which form the basis of many sports, has not been clarified. We measured RFD and various athletic performances abilities in athletes from various sports, and clarified the relationship between explosive athletic performance and RFD from both cross-sectional and longitudinal perspectives.This study will allow for the evaluation of lower extremity extensor muscle strength and provide numerical objectives for the improvement of various explosive athletic performance.

Free Research Field

スポーツ科学

Academic Significance and Societal Importance of the Research Achievements

国内外の研究動向として、基礎研究の分野で取り扱われてきた力の立ち上がり率（RFD）に関する知見が、トレーニングや運動の実践現場でも適用できる可能性を示すことができた。さらに、これまで非常に厳密に測定されてきたRFDを、簡易的に測定方法や評価指標を用いて定量化した場合でも、力発揮能力や運動能力を向上させるために有益な情報として利用できることを示した。よって、研究領域で日々蓄積されているRFDに関する知見を速やかにトレーニングや運動の実践現場に還元するための足掛かりとなることが考えられる。