Kidney transplant recipients often experience impaired function of peripheral and respiratory muscles due to uremic myopathy and other conditions, with their physical activity capacity being far lower than that of healthy individuals. What’s more, conventional physical training may be restricted by their physical conditions. Thus, finding a safe and effective alternative training method has long been a major focus of attention in clinical practice and for the patients themselves.
Now, a 12-week clinical study targeting kidney transplant recipients has provided us with a new answer —— Whole-Body Vibration (WBV) training. This training method using a vibration platform not only involves no complications throughout the process and ensures safety, but also can improve patients’ physical functions and quality of life in certain aspects, making it a promising high-quality option for physical training among kidney transplant recipients!

This joint study conducted by multiple universities in Brazil, Spain and Portugal was published in Physiother Res Int. A total of 5 kidney transplant recipients (aged 43-52 years, 3 males and 2 females) were enrolled in the study, all of whom were excluded from contraindications such as unstable hypertension and musculoskeletal diseases, and received immunosuppressant therapy throughout the research period. A standardized 12-week WBV training protocol was formulated for the participants: training was conducted twice a week at a constant frequency of 35 Hz, with the amplitude gradually adjusted from 2 mm to 4 mm and the training duration increased step by step from 10 minutes to 20 minutes. During training, the participants maintained a half-squat position and grasped the platform with both hands, ensuring the entire process was safe and controllable.
The training effects were comprehensively evaluated from four core dimensions: quadriceps strength/thickness, 6-Minute Walk Test (6MWT), inspiratory muscle strength, and quality of life (SF-36 Scale). Although the results did not show improvements in all dimensions for all participants, positive effects were observed in several key indicators. All participants were satisfied with the training protocol, and no adverse effects were reported throughout the study.
In terms of muscle strength and thickness, 2 out of the 5 participants (P1, P5) achieved a significant increase in quadriceps strength, with an improvement of 272 N and 345 N respectively; 1 participant (P1) had a 0.97 mm increase in quadriceps thickness. This result confirmed the stimulatory effect of WBV training on muscle recruitment: even though kidney transplant recipients face a risk of myopathy due to long-term use of immunosuppressants such as corticosteroids, they can still enhance their muscle strength through this training method.
Regarding the improvement of respiratory muscle function, 4 participants in the study had pre-existing inspiratory muscle weakness. After the training, 1 participant (P3) saw a 26 cmH₂O increase in maximal inspiratory pressure, with their respiratory muscle strength effectively improved. The researchers analyzed that the posture of grasping the platform during training transmits vibrations to the shoulder girdle, which indirectly stimulates the accessory respiratory muscles—this is one of the unique advantages of WBV training.



