EFFECTS OF ROOM TEMPERATURE ON CIRCULATORY DYNAMICS DURING BATHING IN THE ELDERLY

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  • NAGAHIRO Chie
    Department of Health Sciences, Kyushu University School of Medicine Department of Hygiene & Preventive Medicine, Okayama University Graduate School of Medicine, Dentistry & Pharmaceutical Sciences

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  • 健常高齢者の入浴時における浴室温が循環動態に及ぼす影響
  • ケンジョウ コウレイシャ ノ ニュウヨクジ ニ オケル ヨクシツオン ガ ジュンカン ドウタイ ニ オヨボス エイキョウ

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Objective Accidents during bathing is relatively common in Japan, and 85% or more proportion of those who suffered from such accidents were elderly. Most previous studies focused on the effects of low room temperature; a few studies focused on elderly. The present study examined the effect of relatively high room temperatures (20℃ and 27℃) on circulatory dynamics and mood during bathing at 41℃ among the elderly.<br/>Methods A total of 14 elderly (6 men and 8 women, with average age of 70 years old) were asked to take a bath at 41℃ twice, i.e. at different room temperatures of 20℃ and 27℃. The order of bathing at either room temperature was randomly assigned. Blood pressures, heart rate, pressure-rate products (PRP), oxygen saturations, tympanic temperatures, mood and thermal sensations were measured during bathing and thereafter and compared between the two room temperature conditions.<br/>Results 1) Tympanic temperatures increased more prominently and blood pressure decreased more after bathing under room temperature of 27℃ than under that of 20℃ (P<0.05).<br/> 2) Changes in mood or thermal sensations was not significantly different between the two room temperature conditions (P>0.05).<br/> 3) Oxygen saturations tended to be lower after bathing under room temperature of 27℃ than under that of 20℃ (P<0.05).<br/>Conclusions Among the elderly, bathing at room temperatures of 20℃ and 27℃ were both considered as safe. Bathing at room temperature of 27℃ might have a beneficial effect in lowering blood pressure.

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