Todorov G, Nedeva V
Probl Khig. 1993;18:180-4.
The present work is part of a complex study of the health problems concerning the training of schoolchildren from the musical school--Sofia in specialty violin and piano. In order to examine the changes in the activity of the sympathetic-adrenal system for tracing the concentrations of sodium, potassium and index sodium/potassium in saliva of schoolchildren from the musical school during the general education program and also during individual training. The changes established during the experiment show the dynamics in the functional state of the sympathetic-adrenal system. We have to mention, that during the individual training an increased activity of the adrenal is observed, in connection with the emotional adjustment and emotional expenditure of schoolchildren.
本研究是关于索菲亚音乐学校小提琴和钢琴专业学童训练相关健康问题的综合研究的一部分。为了检测交感 - 肾上腺系统活动的变化，以便追踪音乐学校学童在普通教育课程期间以及个人训练期间唾液中钠、钾的浓度和钠/钾指数。实验中发现的变化显示了交感 - 肾上腺系统功能状态的动态变化。我们必须指出，在个人训练期间，观察到肾上腺活动增加，这与学童的情绪调节和情绪消耗有关。
