title: Correlation between toe flexor strength and ankle dorsiflexion ROM during the countermovement jump.
abstract: [Purpose] This study assessed the relationships between peak toe flexor muscle strength, ankle dorsiflexion range of motion, and countermovement jump height. [Subjects and Methods] Eighteen healthy volunteers participated in the study. Each participant completed tests for peak toe flexor muscle strength, ankle dorsiflexion range of motion, and countermovement jump height. [Results] The results showed (1) a moderate correlation between ankle dorsiflexion range of motion and countermovement jump height and (2) a high correlation between peak first toe flexor muscle strength and countermovement jump height. Peak first toe flexor muscle strength and ankle dorsiflexion range of motion are the main contributors to countermovement jump performance. [Conclusion] These findings indicate that the measurement of peak first toe flexor muscle strength and ankle dorsiflexion range of motion may be useful in clinical practice for improving jump performance in athletes training for sports such as volleyball and basketball.
authors.affiliation: Department of Rehabilitation Therapy, Graduate School, Yonsei University, Republic of Korea; Department of Rehabilitation Medicine, Wonju Severance Christian Hospital, Yonsei University, Republic of Korea.
authors.forename: Sung Joon
authors.initials: SJ
authors.lastname: Yun
authors.affiliation: Department of Rehabilitation Medicine, Wonju Severance Christian Hospital, Yonsei University, Republic of Korea.
authors.forename: Moon-Hwan
authors.initials: MH
authors.lastname: Kim
authors.affiliation: Department of Physical Therapy, Joongbu University, Republic of Korea.
authors.forename: Jong-Hyuck
authors.initials: JH
authors.lastname: Weon
authors.affiliation: Department of Rehabilitation Therapy, Institute of Health Science, Yonsei University, Republic of Korea.
authors.forename: Young
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Department of Physical Therapy, College of Health Science, Laboratory of Kinetic Ergocise Based on Movement Analysis, Yonsei University, Republic of Korea.
authors.forename: Sung-Hoon
authors.initials: SH
authors.lastname: Jung
authors.affiliation: Department of Physical Therapy, College of Health Science, Laboratory of Kinetic Ergocise Based on Movement Analysis, Yonsei University, Republic of Korea.
authors.forename: Oh-Yun
authors.initials: OY
authors.lastname: Kwon
keywords: Ankle dorsiflexion; Countermovement jump; Toe strength