目的:肌腱适应施加于它们的载荷,通过改变自己的机械性能。研究的目的是研究不同年龄段的个人以举重/力量训练的形式进行体育锻炼对the腱机械性能的影响。方法:200人参与研究。第1组(n=109)包括作为业余爱好者训练力量运动的个人,第2组(n=91)由不运动的人组成。在膝关节的各个位置分别检查髌腱:0、30、60、90、120°。使用用于肌测量的设备测量了以下机械参数,MyotonPRO:频率[Hz],刚度[N/m],递减[日志],弛豫时间[ms]和蠕变[De]。比较了体力活动的结果,培训历史,BMI值,和性别。结果:随着髌腱拉伸程度的增加,刚度和张力增加,弹性降低。在训练中的个人群体中,注意到较大的刚度和色调和较低的弹性。此外,在老年人和具有较长训练经验的个体中,刚度和音调似乎更高。结论:与力量训练相关的机械负荷导致髌腱适应性变化的发展,以更高的刚度和色调的形式,以及较低的弹性。MyotonPRO装置可用于定量评估髌腱的机械性能。
Purpose: Tendons adapt to loads applied to them, by changing their own mechanical properties. The purpose of the study was to examine the influence of practicing sport in the form of weightlifting/strength training by individuals of various age groups upon the mechanical properties of the patellar tendon. Methods: 200 people participated in the study. Group 1 (n = 109) comprised individuals training strength sports as amateurs, group 2 (n = 91) consisted of people who were not physically active. The patellar tendon was examined in various positions of the knee joint: 0, 30, 60, 90, 120° respectively. The following mechanical parameters were measured with the use of a device for myoto-nometric measurements, MyotonPRO: frequency [Hz], stiffness [N/m], decrement [log], relaxation time [ms] and creep [De]. The results were compared as regards physical activity, training history, BMI value, and gender. Results: Stiffness and tone increased while
elasticity decreased with patellar tendon stretching degree. In the group of individuals in training, greater stiffness and tone and lower
elasticity were noted. Moreover, stiffness and tone appeared to be higher in elderly people and individuals with longer training experience. Conclusions: Mechanical loads connected with strength training result in development of adaptive changes in the patellar tendon, in the form of higher stiffness and tone, as well as lower
elasticity. The MyotonPRO device is useful for quantitative assessment of the mechanical properties of patellar tendon.