Guthrie Brian M, King Erica L, Patwardhan Shriniwas, Wei Qi, Sikdar Siddhartha, Chitnis Parag V, Jones Margaret T
Patriot Performance Laboratory, Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA, United States.
Department of Bioengineering, George Mason University, Fairfax, VA, United States.
Front Sports Act Living. 2023 Feb 22;5:1065470. doi: 10.3389/fspor.2023.1065470. eCollection 2023.
Patellar tendon adaptations occur in response to mechanical load. Appropriate loading is necessary to elicit positive adaptations with increased risk of injury and decreased performance likely if loading exceeds the capacity of the tendon. The aim of the current study was to examine intra-individual associations between workloads and patellar tendon properties and neuromuscular performance in collegiate volleyball athletes.
National Collegiate Athletics Association Division I men's volleyball athletes ( = 16, age: 20.33 ± 1.15 years, height: 193.50 ± 6.50 cm, body mass: 84.32 ± 7.99 kg, bodyfat%: 13.18 ± 4.72%) competing across 9 weeks of in-season competition participated. Daily measurements of external workloads (i.e., jump count) and internal workloads [i.e., session rating of perceived exertion (sRPE)] were recorded. Weekly measurements included neuromuscular performance assessments (i.e., countermovement jump, drop jump), and ultrasound images of the patellar tendon to evaluate structural adaptations. Repeated measures correlations ( assessed intra-individual associations among performance and patellar tendon metrics.
Workload measures exhibited significant to (=-0.26-0.31) associations with neuromuscular performance, (= -0.21-0.30), and (= 0.20-0.32) to associations with patellar tendon properties.
Monitoring change in tendon composition and performance adaptations alongside workloads may inform evidence-based frameworks toward managing and reducing the risk of the development of patellar tendinopathy in collegiate men's volleyball athletes.
髌腱适应是对机械负荷的反应。适当的负荷对于引发积极的适应是必要的，如果负荷超过肌腱的承受能力，则受伤风险增加且表现可能下降。本研究的目的是检查大学生排球运动员工作量与髌腱特性和神经肌肉性能之间的个体内关联。
参加9周赛季内比赛的美国国家大学体育协会第一分区男子排球运动员（n = 16，年龄：20.33±1.15岁，身高：193.50±6.50厘米，体重：84.32±7.99千克，体脂率：13.18±4.72%）参与了研究。记录每日外部工作量（即跳跃次数）和内部工作量[即主观用力程度评分（sRPE）]。每周测量包括神经肌肉性能评估（即反向运动跳跃、下落跳跃）以及髌腱的超声图像以评估结构适应性。重复测量相关性分析评估了性能与髌腱指标之间的个体内关联。
工作量测量与神经肌肉性能呈现显著的中等（r = -0.26 - 0.31）关联，与髌腱特性呈现中等（r = -0.21 - 0.30）以及中等至高度（r = 0.20 - 0.32）关联。
监测肌腱成分变化和性能适应以及工作量，可能为基于证据的框架提供信息，以管理和降低大学生男子排球运动员髌腱病发生的风险。
