Improvements in asymmetry in knee flexion motion during landing are associated with the postoperative period and quadriceps strength after anterior cruciate ligament reconstruction

Ishida, Tomoya; Samukawa, Mina; Suzuki, Makoto; Matsumoto, Hisashi; Ito, Yu; Sakashita, Miku; Aoki, Yoshimitsu; Yamanaka, Masanori; Tohyama, Harukazu

Improvements in asymmetry in knee flexion motion during landing are associated with the postoperative period and quadriceps strength after anterior cruciate ligament reconstruction

Ishida, Tomoya; Samukawa, Mina; Suzuki, Makoto et al.

Research in sports medicine, 2021, 31(3), 285-295

Permalink : https://hdl.handle.net/2115/86571

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アクセス権	open access
URI	https://hdl.handle.net/2115/86571
タイトル	Improvements in asymmetry in knee flexion motion during landing are associated with the postoperative period and quadriceps strength after anterior cruciate ligament reconstruction
著者	Ishida, Tomoya ; Samukawa, Mina ; Suzuki, Makoto ; Matsumoto, Hisashi ; Ito, Yu ; Sakashita, Miku ; Aoki, Yoshimitsu ; Yamanaka, Masanori ; Tohyama, Harukazu
e-Rad_Researcher 30759642 著者名 Ishida, Tomoya
e-Rad_Researcher 40360953 著者名 Samukawa, Mina
著者名 Suzuki, Makoto
著者名 Matsumoto, Hisashi
著者名 Ito, Yu
著者名 Sakashita, Miku
著者名 Aoki, Yoshimitsu
著者名 Yamanaka, Masanori
e-Rad_Researcher 60301884 著者名 Tohyama, Harukazu
言語	英語
キーワード	Landing
	symmetry
	knee extensor strength
	return to sports
	second injury
発行日	2021-08-18
出版者	Taylor & Francis
収録物名	Research in sports medicine
巻(号)	31(3)
ページ	285-295
抄録	This study investigated the relationship between quadriceps strength and knee kinematics during a drop vertical jump (DVJ) at 6, 9 and 12 months after anterior cruciate ligament reconstruction (ACLR) in 9 male and 22 female athletes (16.6 +/- 2.1 years old). Isokinetic quadriceps strength was measured by a dynamometer (Biodex System 3). Knee flexion excursion was assessed using two-dimensional analysis. Knee flexion excursion at 6 months was significantly smaller in the involved limb than in the uninvolved limb independent of quadriceps strength (56.7 degrees +/- 9.3 degrees, 63.4 degrees +/- 11.4 degrees, P < 0.001). At 9 months, only the low quadriceps strength group demonstrated a similar interlimb difference (57.2 degrees +/- 12.3 degrees, 63.3 degrees +/- 10.5 degrees, P < 0.001). At 12 months, there was no significant interlimb difference in knee flexion excursion regardless of quadriceps strength. These findings indicate that restoration in symmetrical knee flexion excursion during a DVJ requires rehabilitation as well as quadriceps strength.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an Accepted Manuscript of an article published by Taylor & Francis in Research in Sports Medicine on 18 Aug 2021, available online: http://www.tandfonline.com/10.1080/15438627.2021.1966010.
PISSN	1543-8627
関連情報	PMID 34406086
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1080/15438627.2021.1966010