Adolescent boys who participate in sports exhibit similar ramp torque control with young men despite differences in strength and tendon characteristics.
Adolescent boys who participate in sports exhibit similar ramp torque control with young men despite differences in strength and tendon characteristics.
复制标题
尽管力量和肌腱特征存在差异，参加体育运动的青春期男孩与年轻男性表现出相似的斜坡扭矩控制。
DOI：
10.1007/s00421-022-05130-y
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发表时间：
2023
影响因子：
3
通讯作者：
Christou,EvangelosA
中科院分区：
文献类型：
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作者：
Choi,YoonJin;Chalatzoglidis,George;Trapezanidou,Martha;Delmas,Stefan;Savva,Evangelia;Yacoubi,Basma;Arabatzi,Fotini;Christou,EvangelosA
目的研究运动参与对青少年男孩和年轻男性在慢斜坡任务中的扭矩控制是否有不同的影响。方法21名青春期男孩（11名运动员）和31名年轻男性（16名运动员）进行足底屈曲扭矩从0到最大值的缓慢斜坡增加。我们将转矩控制量化为转矩在斜坡过程中的变异系数（CV），并利用超声对跟腱力学特性进行量化。结果与青春期男孩相比，年轻男性更高、更重、更强壮，跟腱更长、更硬。然而，这些特征在运动员和非运动员之间没有差异。对于扭矩CV，与运动参与有显著的相互作用，表明只有非运动员的青春期男孩比年轻男性具有更大的变异性。所有被试的扭矩CV均通过最大扭矩和1 ~ 2 Hz的扭矩振荡来预测，而青春期男孩的扭矩CV仅通过1 ~ 2 Hz的扭矩振荡来预测。这些研究结果表明，参加运动的青春期男孩在慢斜坡任务中表现出较低的扭矩变异性，这并不能用跟腱特性或强度的差异来解释。
PurposeThe goal of this paper was to determine if sports participation influences torque control differently for adolescent boys and young men during a slow ramp task.MethodsTwenty-one adolescent boys (11 athletes) and 31 young men (16 athletes) performed a slow ramp increase in plantar flexion torque from 0 to maximum. We quantified torque control as the coefficient of variation (CV) of torque during the ramp and quantified the Achilles tendon mechanical properties using ultrasonography.ResultsRelative to adolescent boys, young men were taller, heavier, stronger, and had a longer and stiffer Achilles tendon. However, these characteristics were not different between athletes and non-athletes in adolescent boys. For the CV of torque, there was a significant interaction with sports participation, indicating that only adolescent boys who were non-athletes had greater variability than young men. The CV of torque of all participants was predicted from the maximum torque and torque oscillations from 1 to 2 Hz, whereas the CV of torque for adolescent boys was predicted only from torque oscillations from 1 to 2 Hz.ConclusionThese findings suggested that adolescent boys who participate in sports exhibited lower torque variability during a slow ramp task, which was not explained by differences in Achilles tendon properties or strength.