It stimulates the cardio-respiratory system and it's non-weight bearing.
这种锻炼方式刺激了心脏呼吸系统，同时不负重。
2
When beginning and finish the experiment, the indexes of the speed, power, endurance, cardio-respiratory function of players in each group were tested.
在实验开始和结束时，分别测试两组的心肺功能、速度、力量、耐力等身体机能指标并进行比较。
3
Results: the respiratory system disease, digestive system disease, cardio-cerebral vascular system, delivery-disease and traumatic disease were the major spectrum of diseases.