在患有髌股疼痛的女性中，膝关节肌肉能力受损与跳跃着陆时矢状面运动学受损相关。
Impaired Knee Muscle Capacity Is Correlated With Impaired Sagittal Kinematics During Jump Landing in Women With Patellofemoral Pain.
作者信息
Nunes Guilherme S, Barton Christian J, Serrão Fábio V
机构信息
Department of Physiotherapy, São Carlos Federal University, São Carlos, Brazil.
La Trobe Sport and Exercise Medicine Research Center, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia; and.
出版信息
J Strength Cond Res. 2022 May 1;36(5):1264-1270. doi: 10.1519/JSC.0000000000003616. Epub 2020 Apr 24.
Nunes, GS, Barton, CJ, and Serrão, FV. Impaired knee muscle capacity is correlated with impaired sagittal kinematics during jump landing in women with patellofemoral pain. J Strength Cond Res 36(5): 1264-1270, 2022-Knee and hip muscle capacity is impaired in women with patellofemoral pain (PFP), but little is known about the rate of force development (RFD) at the knee. Impaired muscle capacity may contribute to reduced sagittal plane movement at the knee and hip during jump landing in women with PFP. This study aimed to (a) compare knee extensor muscle capacity (including RFD), and hip abductor and extensor muscle capacity between women with and without PFP; and (b) evaluate the relationship between hip/knee muscle capacity and sagittal kinematics during single-legged drop jump landing in women with PFP. Fifty-two physically active women (26 with PFP and 26 controls) participated. Rate of force development (in %/ms), isometric, concentric, and eccentric torque (in N·m·kg-1 × 100) were evaluated using isokinetic dynamometry, and knee and hip kinematics were evaluated using three-dimensional motion capture. Compared with the control group (CG), the PFP group (PFPG) presented lower isometric (12%, PFPG = 217.2 ± 46.0; CG = 246.5 ± 38.8; p = 0.02), concentric (21%, PFPG = 133.0 ± 42.6; CG = 169.2 ± 28.8; p < 0.01), and eccentric (17%, PFPG = 172.9 ± 56.7; CG = 208.4 ± 59.4; p = 0.03) knee extension torque; lower RFD until 30% (30%, PFPG = 0.57 ± 0.27; CG = 0.83 ± 0.37; p < 0.01) and 60% (31%, PFPG = 0.47 ± 0.24; CG = 0.67 ± 0.33; p = 0.01) of maximal isometric torque; and lower concentric hip abduction (13%, PFPG = 94.7 ± 19.1; CG = 108.4 ± 17.5; p = 0.01) and extension (17%, PFPG = 134.4 ± 34.3; CG = 162.6 ± 38.0; p < 0.01) torque. Significant correlations between reduced RFD for knee extension and reduced sagittal plane knee/hip range of motion during landing were identified (r = 0.39-0.49). In conclusion, women with PFP have impaired knee extensor isometric and dynamic strength, and RFD. Impaired knee extensor RFD is associated with a stiffer landing strategy (reduced movement).
努内斯，GS，巴顿，CJ，以及塞拉奥，FV。髌股疼痛女性在跳跃落地时，膝关节肌肉能力受损与矢状面运动学受损相关。《力量与体能研究杂志》36(5): 1264 - 1270，2022年——髌股疼痛（PFP）女性的膝关节和髋关节肌肉能力受损，但膝关节的力量发展速率（RFD）情况却鲜为人知。肌肉能力受损可能导致PFP女性在跳跃落地时膝关节和髋关节矢状面运动减少。本研究旨在：（a）比较有和没有PFP的女性之间的膝关节伸肌肌肉能力（包括RFD）、髋关节外展肌和伸肌肌肉能力；（b）评估PFP女性单腿下落跳跃落地时髋关节/膝关节肌肉能力与矢状面运动学之间的关系。52名身体活跃的女性（26名患有PFP，26名作为对照）参与了研究。使用等速测力法评估力量发展速率（以%/毫秒为单位）、等长、向心和离心扭矩（以N·m·kg-1×100为单位），并使用三维运动捕捉评估膝关节和髋关节运动学。与对照组（CG）相比，PFP组（PFPG）的等长膝关节伸展扭矩更低（降低12%，PFPG = 217.2±46.0；CG = 246.5±38.8；p = 0.02）、向心扭矩更低（降低21%，PFPG = 133.0±42.6；CG = 169.2±28.8；p < 0.01）、离心扭矩更低（降低17%，PFPG = 172.9±56.7；CG = 208.4±59.4；p = 0.03）；在最大等长扭矩的30%（降低30%，PFPG = 0.57±0.27；CG = 0.83±0.37；p < 0.01）和60%（降低31%，PFPG = 0.47±0.24；CG = 0.67±0.33；p = 0.01）时RFD更低；向心髋关节外展扭矩更低（降低13%，PFPG = 94.7±19.1；CG = 108.4±17.5；p = 0.01）和伸展扭矩更低（降低17%，PFPG = 134.4±34.3；CG = 162.6±38.0；p < 0.01）。研究发现，膝关节伸展RFD降低与落地时矢状面膝关节/髋关节活动范围减小之间存在显著相关性（r = 0.39 - 0.49）。总之，PFP女性的膝关节伸肌等长和动态力量以及RFD受损。膝关节伸肌RFD受损与更僵硬的落地策略（运动减少）相关。
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