Kalaĭkova P
Probl Khig. 1976;2:147-53.
An experimental study is conducted in a group of schoolchildren of varying ages with the purpose to establish the interrelations between muscles-antagonists upon performing dynamic and static work, requiring precision of muscular exertion. The methods employed include electromyography and dynamography. The obtained results show that upon performing movements with power-precision characteristics, both in static and dynamic work, the synchronous co-working of the two muscles antagonists proves to be the basic form of action. The electromyographic analysis proves the coordinating role played by the antagonist in the above described pattern of actions. It is furthermore established that in schoolchildren, aged 12-13 and 16-17 years, accomplishment of the motor task is fulfilled more rationally, with less neuromuscular energy expenditure in comparison with 7 to 8-year-old schoolchildren. In addition, after the age 12-13 years, a certain degree of stabilization in some of motor activity parameters takes place, brought on by improvement of motor activity regulation and control.
对一群不同年龄的学童进行了一项实验研究，目的是确定在进行动态和静态工作时，要求肌肉精确发力的情况下，拮抗肌之间的相互关系。所采用的方法包括肌电图和测力法。获得的结果表明，在进行具有力量 - 精确特征的动作时，无论是静态还是动态工作，两块拮抗肌的同步协同工作被证明是基本的作用形式。肌电图分析证明了拮抗肌在上述动作模式中所起的协调作用。此外还确定，与7至8岁的学童相比，12 - 13岁和16 - 17岁的学童在完成运动任务时更合理，神经肌肉能量消耗更少。此外，在12 - 13岁之后，由于运动活动调节和控制的改善，一些运动活动参数会出现一定程度的稳定。
