Department of Movement Sciences, University of Idaho, Moscow, ID 83843, USA.
Department of Physical Education, Yonsei University, Seoul 03722, Korea.
Int J Environ Res Public Health. 2021 Apr 3;18(7):3748. doi: 10.3390/ijerph18073748.
Sex and limb differences in lower extremity alignments (LEAs) and dynamic lower extremity kinematics (LEKs) during a drop vertical jump were investigated in participants of Korean ethnicity. One hundred healthy males and females participated in a drop vertical jump, and LEAs and LEKs were determined in dominant and non-dominant limbs. A 2-by-2 mixed model MANOVA was performed to compare LEAs and joint kinematics between sexes and limbs (dominant vs. non-dominant). Compared with males, females possessed a significantly greater pelvic tilt, femoral anteversion, Q-angle, and reduced tibial torsion. Females landed on the ground with significantly increased knee extension and ankle plantarflexion with reduced hip abduction and knee adduction, relatively decreased peak hip adduction, knee internal rotation, and increased knee abduction and ankle eversion. The non-dominant limb showed significantly increased hip flexion, abduction, and external rotation; knee flexion and internal rotation; and ankle inversion at initial contact. Further, the non-dominant limb showed increased peak hip and knee flexion, relatively reduced peak hip adduction, and increased knee abduction and internal rotation. It could be suggested that LEAs and LEKs observed in females and non-dominant limbs might contribute to a greater risk of anterior cruciate ligament injuries.
本研究旨在探讨韩国人群在垂直跳落过程中下肢对线（LEA）和下肢动态运动学（LEK）的性别和肢体差异。100 名健康男性和女性参与了垂直跳落实验，对优势侧和非优势侧的 LEA 和 LEK 进行了测定。采用 2×2 混合模型 MANOVA 比较了性别和肢体（优势侧与非优势侧）之间的 LEA 和关节运动学。与男性相比，女性的骨盆倾斜度、股骨前倾角、Q 角更大，胫骨扭转度更小。女性在着地时膝关节伸展和踝关节跖屈增加，髋关节外展和膝关节内收减少，相对的髋关节内收峰值减少，膝关节内旋和膝关节外展增加。非优势侧在初始接触时髋关节屈曲、外展和外旋、膝关节屈曲和内旋以及踝关节内翻明显增加。此外，非优势侧的髋关节和膝关节屈曲峰值增加，髋关节内收峰值相对减少，膝关节外展和内旋增加。这表明女性和非优势侧的 LEA 和 LEK 可能会增加前交叉韧带损伤的风险。
