Are Sport-Specific Profiles of Tendon Stiffness and Cross-Sectional Area Determined by Structural or Functional Integrity?
Are Sport-Specific Profiles of Tendon Stiffness and Cross-Sectional Area Determined by Structural or Functional Integrity?
复制标题
特定运动的肌腱刚度和横截面积是由结构或功能完整性决定的吗？
作者：
Hans;F. Rieder;A. Kösters;E. Müller;O. Seynnes
本研究旨在确定在从事运动的运动员中是否存在不同的肌腱特性，这些运动员对肌腱功能和结构完整性的要求不同。采用超声、肌电和测功相结合的方法，对优秀跳台滑雪运动员、长跑运动员、水球运动员和久坐不动的运动员的膝腱和跟腱的形态和力-变形关系进行了测量。水球运动员的肌腱横截面积(归一化为身体质量的2/3)小于其他运动员(膝腱和跟腱；-28%~-24%)或对照组(仅-9%)。与之相反，跑步者(仅为髌腱)和跳台滑雪运动员(分别为+21%和+13%)和跳台滑雪运动员(分别为+21%和+13%)的正常化横截面积大于对照组。与对照组(膝腱和跟腱，分别为+11%和+27%)和水球运动员(仅跟腱，+23%)相比，只有跳台滑雪运动员的肌腱硬度与身体质量归一化2/3有所不同。肌腱大小似乎是负荷量和/或强度变化的调节变量，可能是为了保持极限强度或抗疲劳性。然而，分离的形态和力学特性表明，功能要求也可能影响肌腱的适应性。
The present study aimed to determine whether distinct sets of tendon properties are seen in athletes engaged in sports with contrasting requirements for tendon function and structural integrity. Patellar and Achilles tendon morphology and force-deformation relation were measured by combining ultrasonography, electromyography and dynamometry in elite ski jumpers, distance runners, water polo players and sedentary individuals. Tendon cross-sectional area normalized to body mass2/3 was smaller in water polo players than in other athletes (patellar and Achilles tendon; -28 to -24%) or controls (patellar tendon only; -9%). In contrast, the normalized cross-sectional area was larger in runners (patellar tendon only; +26%) and ski jumpers (patellar and Achilles tendon; +21% and +13%, respectively) than in controls. Tendon stiffness normalized to body mass2/3 only differed in ski jumpers, compared to controls (patellar and Achilles tendon; +11% and +27%, respectively) and to water polo players (Achilles tendon only; +23%). Tendon size appears as an adjusting variable to changes in loading volume and/or intensity, possibly to preserve ultimate strength or fatigue resistance. However, uncoupled morphological and mechanical properties indicate that functional requirements may also influence tendon adaptations.
影响因子：
2.4
作者：
BUTLER, DL;GROOD, ES;BRACKETT, K
通讯作者：
BRACKETT, K
影响因子：
3.3
作者：
LaCroix, Andrew S.;Duenwald-Kuehl, Sarah E.;Vanderby, Ray, Jr.
通讯作者：
Vanderby, Ray, Jr.