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ORIGINAL ARTICLE  EPIDEMIOLOGY AND CLINICAL MEDICINE 

The Journal of Sports Medicine and Physical Fitness 2019 August;59(8):1413-9

DOI: 10.23736/S0022-4707.18.07921-5

Copyright © 2018 EDIZIONI MINERVA MEDICA

language: English

Effect of acute intradialytic aerobic and resistance exercise on one-day blood pressure in patients undergoing hemodialysis: a pilot study

Joon-Sik KIM 1, Joo-Hark YI 2, Jinho SHIN 3, Yeon-Soo KIM 1, Sang-Woong HAN 2

1 Health and Exercise Science Laboratory, Institute of Sports Science, Seoul National University, Seoul, South Korea; 2 Division of Nephrology, Department of Internal Medicine, Hanyang University Guri Hospital, Guri, South Korea; 3 Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea



BACKGROUND: Hypertension and intradialytic hypotension are independent risk factors for mortality in hemodialysis patients. We hypothesized that intradialytic exercise would increase blood pressure (BP) during dialysis and decrease it during the postdialytic period. The present study aimed to investigate the effect of acute intradialytic exercise on BP both during dialysis and for 20 hours postdialysis, and to detect any differences in effects of aerobic exercise (AE), resistance exercise (RE), and usual care (UC-the control condition).
METHODS: Eleven patients undergoing maintenance hemodialysis performed two complete sets of AE or RE, with a 1-hour rest between the sets. The patients performed AE, RE and UC over three consecutive weeks at 7-day intervals. Intradialytic BP was measured using an oscillometric BP monitor (N.=11), and ambulatory BP was measured for 20 hours after each dialysis session using an ambulatory BP monitor (N.=8).
RESULTS: The mean BP of the patients in the AE and RE interventions increased during exercise (P<0.05), with the exception of the first set of AE. However, only RE increased BP significantly compared with UC (P<0.05). Following dialysis, daytime ambulatory BP was significantly lower after AE and RE than after UC (P<0.05).
CONCLUSIONS: Acute intradialytic exercise interventions are effective in increasing BP during dialysis and decreasing daytime ambulatory BP after dialysis. Longer observation periods and larger sample sizes will be needed to confirm our findings. Also further studies should be performed on patients prone to intradialytic hypotension.


KEY WORDS: Exercise; Blood pressure monitoring, ambulatory; Renal dialysis; Hypertension

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