青年男性能量代谢测试的一日排水量 |
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作者姓名: | 郝文睿 全海英 李 璐 张 程 吴大蔚 张 宽 |
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作者单位: | 首都医科大学生物医学工程学院,北京市 100069;首都医科大学临床生物力学应用基础研究北京市重点实验室,北京市 100069;中国航天员科研训练中心,北京市 100094 |
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基金项目: | 国家自然科学基金(31170900) |
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摘 要: |
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关 键 词: | 组织构建 组织工程 排水量 身体活动水平 排湿量 排尿量 能量代谢测试舱 需水量 青年男性 摄水量 国家自然科学基金 |
收稿时间: | 2016-02-09 |
Daily water loss in Chinese young men |
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Authors: | Hao Wen-rui Quan Hai-ying Li Lu Zhang Cheng Wu Da-wei Zhang Kuan |
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Institution: | School of Biomedical Engineering, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing 100069, China; China Astronaut Research and Training Center, Beijing 100094, China |
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Abstract: | BACKGROUND: No studies currently focus on the measurement of daily water loss under certain physical activity level continuously and precisely.
OBJECTIVE: To provide evidence for daily water requirement in Chinese young men based on the measurement of the daily water loss in Chinese young men under moderate physical activity.
METHODS: Twenty male subjects were enrolled, and 23-hour whole-body sweat loss and urine output were measured using high-precision body weighting scale in whole-room indirect calorimeter. The results were converted to daily (24-hour) water requirement to determine the daily water requirement. Daily whole-body sweat loss per unit body weight, daily whole-body sweat loss per unit fat free mass and daily whole-body sweat loss per unit surface area were calculated.
RESULTS AND CONCLUSION: In Chinese young men, daily water loss was (3 339.7±509.9) g, daily urine output was (1 982.9±449.5) g and daily whole-body sweat loss was (1 356.7±215.6) g. There was a linear correlation between water intake and water loss (r=0.616, P < 0.05). Daily whole-body sweat loss per unit body weight was (21.0±3.6) g/kg, daily whole-body sweat loss per unit fat free mass was (25.8±3.9) g/kg and daily whole-body sweat loss per unit surface area was (799.4±129.4) g/m2. Daily water requirement of Chinese young men under moderate physical activity is approximately 3 340g, and moreover, water loss increases with the increase of water intake. |
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