Postgraduate Program in Rehabilitation and Functional Performance, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG,Brazil.
Graduate Program in Rehabilitation Sciences, Department of Physical Therapy, School of Physical Education, Physical Therapy and Occupational Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, MG,Brazil.
J Sport Rehabil. 2022 Aug 11;32(1):40-45. doi: 10.1123/jsr.2021-0233. Print 2023 Jan 1.
Comfort and pain in cyclists are often discussed as a result of the posture on the bike, and bike fit, including motion analysis, is advocated as a strategy to minimize these conditions. The relationship between cycling kinematics, comfort, and pain is still debatable.
To investigate the association of ankle, knee, and trunk kinematics with the occurrence of anterior knee pain (AKP) in mountain bike cyclists.
Cross-sectional study.
Fifty cross-country mountain bike cyclists (26 with AKP and 24 without AKP) had their pedaling kinematics assessed. Linear and angular data from trunk, hip, knee, ankle, and foot from cyclists with and without AKP were recorded using Retül motion analysis system.
The binary logistic regression model showed that kinematic variables such as peak ankle plantar flexion, peak knee flexion, and forward trunk lean were significant predictors of AKP. Both larger peak plantar flexion and knee flexion decreased the probability of reporting AKP. On the other hand, larger forward trunk lean increased the probability of reporting AKP.
Ankle, knee, and trunk sagittal kinematics may predict AKP in cross-country mountain bike cyclists, whereas hip, knee, and ankle alignment in the frontal plane showed no association with occurrence of AKP. In other words, cyclists with larger ankle plantar flexion and knee flexion are less likely to have AKP, whereas those with increased trunk forward lean are more likely to have AKP.
自行车运动员的舒适度和疼痛常常是由于骑车姿势和自行车适配引起的，包括运动分析，被提倡作为减少这些情况的策略。自行车运动学、舒适度和疼痛之间的关系仍存在争议。
调查山地自行车运动员踝关节、膝关节和躯干运动学与前膝痛（AKP）发生的关系。
横断面研究。
对 50 名越野山地自行车运动员（26 名有 AKP，24 名无 AKP）的蹬踏运动学进行评估。使用 Retül 运动分析系统记录有和无 AKP 的运动员的躯干、髋、膝、踝和足部的线性和角度数据。
二元逻辑回归模型显示，踝关节跖屈峰值、膝关节屈曲峰值和躯干前倾等运动学变量是 AKP 的显著预测因子。较大的跖屈峰值和膝关节屈曲峰值降低了报告 AKP 的概率。另一方面，较大的躯干前倾增加了报告 AKP 的概率。
在越野山地自行车运动员中，踝关节、膝关节和躯干矢状面运动学可能预测 AKP，而在额状面的髋关节、膝关节和踝关节排列与 AKP 的发生没有关联。换句话说，踝关节跖屈和膝关节屈曲较大的运动员发生 AKP 的可能性较小，而躯干前倾较大的运动员发生 AKP 的可能性较大。
