[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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Background：Fatigue, a factor that may reduce physical activity, varies between dialysis and nondialysis days. Therefore, fatigue needs to be investigated separately on dialysis and non-dialysis days. Purpose：The aim of this study was to investigate the relationship between fatigue and physical activity, divided into dialysis and non-dialysis days. Method: This cross-sectional study included 30 hemodialysis outpatients. Physical activity was measured step counts on non-dialysis days. Step counts was recorded by activity tracker from the time of waking up to bedtime on non-dialysis day. Fatigue was measured using the Japanese version of the Chalder Fatigue Scale. Fatigue on dialysis days was assessed within 1 hour after a dialysis session and fatigue on non-dialysis days was assessed after waking up. Step counts and fatigue were measured four times on consecutive dialysis and non-dialysis days, and the mean value of each was calculated. Statistical analysis was conducted by linear regression analysis. Result：Greater fatigue on dialysis days was significantly associated with lower step counts on nondialysis day（ B：−206.28, 95％ CI：−359.17, −53.40）. Conclusion：The findings suggest that it is necessary to focus on fatigue on dialysis days to increase physical activity on non-dialysis days.

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