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.

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.

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

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.

The cardiorespiratory exercise test will be performed on a treadmill (Centurion, model 200, Micromed, Brazil), using a maximal graded exercise protocol [30]. The treadmill speed (2.0, 2.5, 3.0, 3.5, 4.0, 4.0, 4.0, 4.0, 5.0, 5.4, 5.9, 6.3, 6.3 mph), or grade (0.0, 0.0, 0.0, 0.0, 0.0, 2.5, 5.0, 7.5, 4.0, 4.0, 4.0, 4.0. 5.8%) will be increased every 1 minute. The recovery period was set at 2 minutes. Oxygen consumption (VO 2 ) and carbon dioxide output will be obtained through breath-by-breath sampling and expressed as a 30-second average using an indirect calorimetry system (Cortex, model Metalyzer III B, Leipzig, Germany).

((CR) = (Peak HR - Resting HR/208 - (0.7 ∗ Age) - Resting HR] × 100).

According to methods published by Ozalevli et al. [29], 30s sit-to-stand test (30 s SST) was conducted by participants. Participants sat on a 43 cm straight-backed seat, with the seat positioned against the wall to prevent falls. Participants' back was kept upright and hands were crossed so that they rested on the opposite shoulders. Before the test, participants were instructed to practice the procedure 1-2 times. During the 30 s, participants sat and stood as far as possible, and the repetitions were recorded.