Experimental: Land-based Liuzijue exercise

This group includes 40 patients.Will be Performed twice a week from 9:00 to 10:00 a.m. in the rehabilitation department of Shanghai Yue-Yang Hospital under the guidance of an experienced instructor. The LG exercise program consisted of three parts: (1) Warm ups: 5-10 min of stretching and joint activity covering the limbs, neck, and trunk; (2) Land-based Liuzijue exercise: Liuzijue exercise consist of six distinct sounds (xu, he, hu, si, chui, and xi) and corresponding movements was performed with the knees in a semi-flexed position for 45 min; and the time to complete an intact Liuzijue exercise lasts 12-15 min; (3) Cool down: regulate breathing and relax muscles including flap and stretch muscles for 5-10 min.

Experimental: Water-based Liuzijue exercise

his group includes 40 patients. Water-based Liuzijue exercise will be performed twice a week, from 1:00-2:00 p.m., between June and September 2016, in the thermostatic swimming pool located at Shanghai University of Sport (Shanghai, China). The temperature of swimming pool was between 26°C and 30°C, while the temperature of air was between 30°C and 34°C, and the relative humidity was between 60% and 80%. Circulating water purification and disinfection equipment coordinated with chlorine disinfectant was used to sterilize the pool water. The participants were immersed in water to a level between their xiphisternum (lowest part of the sternum) and clavicles. Water-based Liuzijue exercise requires that participants remain awake and have eaten no sooner than 1 h prior to entering the pool to exercise. The WG exercise program consisted of three parts similar with LG:~(1) Warm ups; (2) Water-based Liuzijue exercise; and (3) Cool down.

No_intervention: Control group

This group includes 40 patients, no exercise intervention. All participants received medical treatment.