Im Sang-Cheol, Kim Kyoung
Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Gyeongsan, Korea.
J Exerc Rehabil. 2019 Jun 30;15(3):407-413. doi: 10.12965/jer.1938192.096. eCollection 2019 Jun.
This study aimed to explore the deformation of medial femoral cartilage in normal adults according to gait conditions. Overall, 76 normal adults without degenerative arthritis or a knee injury on medical history were randomly assigned into control, flatland walk, slope walk, and stepper walk groups. The control group was rested for 30 min, the test group performed flatland walking, 16° slope walking, and stepper walking, respectively. The thickness of medial femoral cartilage before and after gait was evaluated through ultrasound test. Compared with the control group, a significant difference was noted for medial femoral cartilage deformation before and after gait in all the three groups. Comparison of the medial femoral cartilage deformation among the groups revealed a significant difference between the control group and the flatland walk, slope walk, and stepper walk groups (<0.05). The flatland walk group had a significant difference between the slope walk group and stepper walk group (<0.05), whereas no significant difference was noted between the slope walk and stepper walk groups (>0.05). After a 30-min walk, the thickness of medial femoral cartilage was reduced, and a difference in deformation was noted according to gait conditions. The thickness of medial femoral cartilage was reduced more in the stepper walk and slope walk groups, wherein more load operates on the knee, than the flatland walk group.
本研究旨在探讨正常成年人中股骨内侧软骨在不同步态条件下的变形情况。总体而言，76名无退行性关节炎病史且无膝关节损伤的正常成年人被随机分为对照组、平地行走组、斜坡行走组和阶梯行走组。对照组休息30分钟，试验组分别进行平地行走、16°斜坡行走和阶梯行走。通过超声检查评估步态前后股骨内侧软骨的厚度。与对照组相比，所有三组步态前后股骨内侧软骨变形均有显著差异。组间股骨内侧软骨变形比较显示，对照组与平地行走组、斜坡行走组和阶梯行走组之间存在显著差异（<0.05）。平地行走组与斜坡行走组和阶梯行走组之间存在显著差异（<0.05），而斜坡行走组和阶梯行走组之间无显著差异（>0.05）。步行30分钟后，股骨内侧软骨厚度减小，且根据步态条件观察到变形差异。与平地行走组相比，阶梯行走组和斜坡行走组中膝关节承受更多负荷，股骨内侧软骨厚度减小更明显。
