Abstract: Objective  To study the application value of exercise rehabilitation model based on the Internet of Things in elderly peritoneal dialysis (PD) patients with sarcopenia.  Methods  A total of 60 elderly PD patients with sarcopenia treated in our hospital from June 2020 year to June 2023 year were retrospectively studied. They were divided into group A and group B with 30 cases in each group. Conventional rehabilitation was applied in group A, while the exercise rehabilitation model based on the Internet of Things was adopted in group B. Muscle mass, muscle function, left and right grip strength, time for 6m walk, and blood indexes were compared between the two groups.  Results Muscle mass, skeletal muscle relative mass index, left and right grip strength and serum albumin increased, time for 6m walk shortened, and C-reactive protein decreased in both groups after intervention (group B: t=-10.637, -5.317, -6.381, -6.060, -10.143, 8.948 and 7.701 respectively; group A: t=-5.083, -4.744, -4.255, -7.588, -6.805, 6.048 and 7.076 respectively; all P＜0.001). The improved ranges of the above indicators were higher in group B than in group A (t=2.153, 2.480, 2.123, 2.240, 0.209, 2.247 and 2.503 respectively; P=0.036, 0.016, 0.029, 0.038, 0.013, 0.028 and 0.015 respectively).  Conclusion The exercise rehabilitation model based on the Internet of Things can improve muscle function, walking speed and inflammation indicators in elderly PD patients with sarcopenia.

Key words: Exercise rehabilitation model based on Internet of Things, Peritoneal dialysis sarcopenia, Muscle function, Inflammation