Feng Ru, Best Thomas M, Wang Lin, Gao Weiwei, Liu Hui, Yu Bing
School of Sports and Health, Nanjing Sport Institute, Nanjing, China.
China Institute of Sports and Health, Beijing Sport University, Beijing, China.
Front Sports Act Living. 2022 Jul 7;4:847945. doi: 10.3389/fspor.2022.847945. eCollection 2022.
Patellar tendinopathy is one of the most common injuries for basketball players. Jumping and landing movement patterns are potential risk factors for patellar tendinopathy.
Male college basketball players who developed patellar tendinopathy would demonstrate greater peak vertical ground reaction force and knee flexion angular velocity, and smaller knee flexion range of motion and knee flexion angles at initial contact compared to players who did not develop the injury when performing a stop-jump task within a year prior to the onset of the injury.
Prospective study.
Freshmen college basketball male players ( = 181) were recruited for three consecutive years and followed to the end of the third year of the study. Three-dimensional kinematic and kinetic data during a stop-jump task were collected for all participants at the beginning of each school year. Peak vertical ground reaction force, knee flexion angle at initial foot contact with the ground, range of motion for knee flexion and maximal knee flexion angular velocity during the landing phases of the stop-jump task were collected and calculated. Development of patellar tendinopathy was monitored in follow-up. Independent t-tests and Cohen's d effect sizes (ES) were used to compare movement patterns between injury and no injury groups for each school year.
A total of 60 knees developed patellar tendinopathy. The injury groups had a significantly greater peak vertical ground reaction force in freshmen and junior years ( = 0.020, ES = 0.13; = 0.046, ES = 0.17), smaller knee flexion ROM in freshmen year ( = 0.002, ES = 0.10), and greater maximum knee flexion angular velocity in freshmen and junior year ( = 0.012, ES = 0.10; = 0.001, ES = 0.35) during the horizontal landing phase before the takeoff of the jump compared to the no injury groups. The injury groups also had a significantly smaller knee flexion angle at initial contact during vertical landing phase after the takeoff of the jump in freshmen and junior years ( = 0.001, ES = 0.36; = 0.001; ES = 0.37) during vertical landing phase.
Peak vertical ground reaction force, knee flexion angle at initial foot contact, knee flexion range of motion, and maximum knee flexion angular velocity are associated with patellar tendinopathy among male college basketball players in different school years.
髌腱病是篮球运动员最常见的损伤之一。跳跃和落地动作模式是髌腱病的潜在危险因素。
与在损伤发生前一年内进行急停跳任务时未发生该损伤的运动员相比，发生髌腱病的男性大学篮球运动员在急停跳任务中会表现出更大的垂直地面反作用力峰值和膝关节屈曲角速度，以及更小的膝关节屈曲活动范围和初始接触时的膝关节屈曲角度。
前瞻性研究。
连续三年招募大学一年级男性篮球运动员（n = 181），并跟踪至研究的第三年末。在每个学年开始时，收集所有参与者在急停跳任务期间的三维运动学和动力学数据。收集并计算急停跳任务落地阶段的垂直地面反作用力峰值、脚首次接触地面时的膝关节屈曲角度、膝关节屈曲活动范围和最大膝关节屈曲角速度。在随访中监测髌腱病的发生情况。使用独立t检验和科恩d效应量（ES）比较每个学年损伤组和未损伤组之间的运动模式。
共有60个膝关节发生了髌腱病。在跳跃起跳前的水平落地阶段，损伤组在大一和大三时的垂直地面反作用力峰值显著更大（p = 0.020，ES = 0.13；p = 0.046，ES = 0.17），大一学年的膝关节屈曲活动范围更小（p = 0.002，ES = 0.10），大一和大三时的最大膝关节屈曲角速度更大（p = 0.012，ES = 0.10；p = 0.001，ES = 0.35），与未损伤组相比。在跳跃起跳后的垂直落地阶段，损伤组在大一和大三时垂直落地阶段初始接触时的膝关节屈曲角度也显著更小（p = 0.001，ES = 0.36；p = 0.001；ES = 0.37）。
在不同学年的男性大学篮球运动员中，垂直地面反作用力峰值、脚首次接触时的膝关节屈曲角度、膝关节屈曲活动范围和最大膝关节屈曲角速度与髌腱病有关。
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