The Effect of Baduanjin on Physical Fitness and Bone Density in Maintenance Hemodialysis Patients

Muscle strength measurement

Grip strength can reflect the strength of hand muscles. The grip strength of both hands of patients was measured using a domestic gripper.The patient took an upright position and grasped the handle with the maximum force. When the display on the machine stopped changing, the value was recorded. The test was repeated three times, and the maximum value was taken to record the results.

Time frame: 0 month, 6month, 12month，18month

Five-times Sit-to-Stand Test (FTSST)

The five-times sit-to-stand test is used to evaluate the functional strength of the lower limbs. MHD patients sat on a 46cm chair without armrests, with their feet on the ground and their backs not resting on the chair. Their hands were crossed on their shoulders. They stood up from the chair as quickly as possible without arm support. They completed five sitting and standing movements, and the completion time was recorded.During the test, the patient kept his hands crossed and his knees completely straightened.Three tests were completed, with a one-minute rest between tests. The average value of the three tests was statistically analyzed.

Time frame: 0 month, 6month, 12month，18month

Timed "up and go" test (TUGT)

The timed "up and go" test is often used to evaluate functional mobility such as balance and walking required in daily life.MHD patients were seated in a back chair with armrests (the seat was about 46cm high, and the armrest was about 21cm high). A guide line was placed on the ground 3m away from the chair. After the test began, the patient left the chair, stood firmly and walked forward for 3m as fast as possible, crossed the guide line, turned around, and returned to the chair to sit down. The walking aids were not allowed during the test.The test was conducted 3 times in total, with a 1-minute rest between adjacent tests. The average value of the 3 tests was taken for statistical analysis.

Time frame: 0 month, 6month, 12month，18month

The sitting forward flexion test

The sitting forward flexion test is often used to evaluate the flexibility of the lower limbs of patients.The patient straightened the knee joint, sat on the flat ground with both feet flat on the test board, bent forward, straightened both arms forward, and gradually pushed the cursor with both middle fingertips to the farthest possible distance.The measuring device was 0 point along the plane of the foot pedal board, negative inward, positive forward, in centimeters. The knee joint could not be bent during the test, and sudden force could not be applied.The test was conducted 3 times in total, and the best result was taken for statistical analysis.

Time frame: 0 month, 6month, 12month，18month

The Standing on one-leg with eyes closed test (SOLECT)

The Standing on one-leg with eyes closed test evaluates the stability of the static posture by quantitative measurement, reflecting the balance ability of patients.The patient spread both hands, closed his eyes, and stood on one leg, with the other leg bent so that the angles between the two legs were 90 degrees. Time was recorded from the time when the foot left the ground, and the shaking stopped when the foot left the ground or stood up. The average of the three times was used for statistical analysis.

Time frame: 0 month, 6month, 12month，18month

Bone mineral density test

The signals received by the scanning system after the double-energy DXA line penetrated the body were transmitted to the supporting software to calculate the average bone mineral density content (g/cm2) of the whole body, the left femur Ward triangle area, and the lumbar spine (L2\~L4).

Time frame: 0 month, 6month, 12month，18month