Jacek Klawe, Małgorzata Tafil-Klawe, Katarzyna Dmitruk, Wojciech Sikorski, Maciej Śmietanowski

Jacek Klawe, Małgorzata Tafil-Klawe, Katarzyna Dmitruk, Wojciech Sikorski, Maciej Śmietanowski – Does reduction of body mass diminish the risk of arterial hypertension in obese persons working at night? Fizjoterapia Polska 2003; 3(1); 62-65

Abstract
Introduction. An increase in arterial blood pressure is observed in healthy subjects after sleep deprivation. Our previous studies indicated that this reaction is augmented in obese subjects, suggesting a greater possibility of arterial hypertension after night-shift work in obesity. The question arises, does the reduction of body mass prevent the increase in arterial blood pressure after sleep deprivation? Material and methods. The investigation was performed in 6 male obese subjects before and after body mass reduction to normal levels. 24 h blood pressure monitoring was performed after night- shift work in an isolation chamber where temperature and humidity were kept constant. Results. The values of mean arterial pressure in obese subjects in the 24 h period after night work were significantly higher as compared with the values observed after night work, after body mass reduction (P < 0.05). Discussion. Our results demonstrate that in obese subjects night work may be a potential arterial hypertension risk factor, and body mass reduction may prevent development of arterial hypertension.

Key words:
shift work, arterial hypertension, obesity

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