Landing instructions focused on pelvic and trunk lateral tilt decrease the knee abduction moment during a single-leg drop vertical jump

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Landing instructions focused on pelvic and trunk lateral tilt decrease the knee abduction moment during a single-leg drop vertical jump

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Chijimatsu, Masato / Ishida, Tomoya / Yamanaka, Masanori / Taniguchi, Shohei / Ueno, Ryo / Ikuta, Ryohei / Samukawa, Mina / Ino, Takumi / Kasahara, Satoshi / Tohyama, Harukazu

Abstract

Objectives: To investigate the effects of pelvic and trunk lateral tilt-focused landing instructions on the knee abduction moment during the single-leg drop vertical jump task. Design: Descriptive laboratory study. Setting: Motion analysis laboratory. Participants: Fifteen young, healthy female participants. Main outcome measures: The participants performed 15 single-leg drop vertical jumps. Landing in-structions with self-video recordings were provided so that the participants' pelvis and trunk remained horizontal in the frontal plane. Pelvic, trunk and knee kinematics and kinetics were evaluated using a three-dimensional motion analysis system before and after the landing instructions. Results: The peak knee abduction moment significantly decreased postinstruction (preinstruction 22.6 +/- 15.3 Nm, postinstruction 17.9 +/- 15.4 Nm, P = 0.004), as did pelvic and trunk lateral tilt (P < 0.01). The knee abduction and internal rotation angles at initial contact significantly decreased postinstruction (P = 0.037, P = 0.007), with no significant change in the peak knee abduction and internal rotation angles from pre-to postinstruction. Conclusions: Landing instructions focused on pelvic and trunk lateral tilt are effective in decreasing the knee abduction moment during the single-leg drop vertical jump. Pelvic and trunk lateral tilt should be controlled to decrease the knee abduction moment during single-leg landing.

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Title :

Landing instructions focused on pelvic and trunk lateral tilt decrease the knee abduction moment during a single-leg drop vertical jump

Contributors:

Chijimatsu, Masato (author) / Ishida, Tomoya (author) / Yamanaka, Masanori (author) / Taniguchi, Shohei (author) / Ueno, Ryo (author) / Ikuta, Ryohei (author) / Samukawa, Mina (author) / Ino, Takumi (author) / Kasahara, Satoshi (author) / Tohyama, Harukazu (author)

DOI :

https://doi.org/10.1016/j.ptsp.2020.09.010

Type of media :

Article (Journal)

Type of material :

Electronic Resource

Language :

English

Keywords :

Anterior cruciate ligament , Injury prevention , Core , Single-leg landing , 490

Classification :

DDC: