submaximum

Methods controlling exercise loadwith treadmill， the quantity of NO in blood of 48 adolescents is determined respectivelywhen they are in rest,Submaximum load and maximum load.

方法应用跑台提供运动负荷，分别对48名少年进行了安静、亚极量负荷和极量负荷下血NO的测定。