Age-related changes in natural spontaneous fluid ingestion and thirst in humans.
Age-related changes in natural spontaneous fluid ingestion and thirst in humans.
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人类自然自发液体摄入和口渴的年龄相关变化。
DOI：
10.1093/geronj/47.5.p321
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
deCastro,JM
中科院分区：
文献类型：
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作者：
deCastro,JM
在实验条件下测试时，老年人对脱水和过度水合的反应受损。本研究调查了在随意条件下是否可以检测到与年龄相关的液体摄入量和口渴变化。成年人（n = 262）保持7天的日记，记录他们摄入的所有东西，时间和条件，以及主观口渴，焦虑，抑郁和活动。20 - 80岁受试者的总体液体摄入量无差异，包括固体食物摄入、主观口渴、社会刺激和胃因素的等效液体摄入反应。然而，年轻组在发作中摄入的液体在一天内略有增加，而老年组则明显下降，产生了迟钝的昼夜节律。此外，老年受试者摄入更多的咖啡，更少的苏打水和酒精。研究结果表明，老年人，在随意的条件下，能够获得正常水平的流体与固体的共同摄入的流体。
Elderly humans have impaired responses to dehydration and overhydration when tested under experimental conditions. This study investigated whether under ad libitum conditions age-related changes in fluid intake and thirst could be detected. Adult humans (n = 262) maintained 7-day diaries of everything they ingested, the timing and conditions present, and subjective thirst, anxiety, depression, and activity. No differences were found in overall fluid intakes of subjects from 20 to 80 years of age, including equivalent fluid intake responses to solid food ingestion, subjective thirst, social stimuli, and stomach factors. However, fluid ingested in bouts increased slightly over the day for younger groups, whereas it declined markedly for elderly groups, producing a blunted diurnal rhythm. Also, elderly subjects ingested more coffee and less soda and alcohol. The findings indicate that elderly individuals, under ad libitum conditions, are able to obtain normal levels of fluid by the coingestion of fluids with solids.