Objective To investigate the level of daily physical activity and its influencing factors in maintenance hemodialysis (MHD) patients, in order to provide a reference for interventional research and clinical practice of physical activity in MHD patients. Methods Convenience sampling was used to select patients with MHD from February to June 2024 in the three blood purification centers in Shanghai as the study subjects. General information questionnaire, FRAIL (fatigue, resistance, ambulation, illnesses and loss of weight) scale and social support scale were used for the investigation. ActiGraph GT3X accelerometer was used to objectively assess the physical activity status of the patients. Paired t-test was used to analyze the difference in physical activity between dialysis and non-dialysis days. Logistic regression analysis was used to explore the factors affecting physical activity in MHD patients. Results Of the 184 MHD patients who participated in this study, only 52 (28.3%) achieved physical activity of the guideline-recommended level. The levels of light (χ²=33.686, P＜0.001), moderate (χ²=19.230, P＜0.001) and vigorous physical activity (χ²=4.390, P=0.037), and the number of steps (χ²=34.567, P＜0.001) were higher on dialysis days than on non-dialysis days. Physical activity levels were lower in older (β=-1.650, 95% CI: 0.087～0.424, P＜0.001) and more debilitated (β=-1.165, 95% CI:0.048～0.763, P=0.019) patients. Higher level of social support was associated with a higher level of physical activity (β=2.385, 95% CI: 0.997～118.345, P=0.050). Conclusion The rate of daily physical activity level compliant with the guideline requirements was lower in MHD patients, and even more lower on dialysis days. In the intervention and practice of physical activity in MHD patients, older and debilitated patients should be more concerned about, and social support has a positive effect on physical activity. The aim of the management is to optimize their somatic function and improve their quality of life.
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