APPARATUS TO MEASURE BODY VOLUME AND COMPOSITION

拟议研究的目的是建立一个 测量人体体积的体积描记法 和组成。 需要一种实用、准确、非侵入性和低成本的 用于测量身体组成的成本装置已经很好地建立， 一般人群中，过多的身体脂肪与许多 疾病过程，例如，心血管疾病、糖尿病和肺 疾病 同样重要的是身体成分的评估， 正常和低出生体重婴儿的营养状况， 储备至关重要。 全身体积描记器用于确定身体体积和随后的 身体密度 腔室中的空气体积被一个小的 扬声器，并且由此产生的压力变化的频谱能量是 分析了 该程序是完全舒适和最小的病人 必须遵守。 在论证技术可行性的基础上，拟议的研究将 导致开发了一种新身体成分测定方法， 对于商业应用将是非常有吸引力的。 商业 应用将在一般人群中发现， 现在已很好地确定了对可控风险因素的修改。 医疗 应用将包括低出生体重婴儿的保健， 饮食失调的病人和肥胖的人。

The purpose of the proposed research is to establish the feasibility of a novel plethysmographic approach to the determination of human body volume and composition. The need for a practical, accurate, non-invasive and low cost device for the measurement of body composition is well established for the general population, where excess body fat is associated with many disease processes, e.g., cardiovascular disease, diabetes, and pulmonary disease. Also important is the assessment of body composition and nutritional status of normal and low birth weight infants, for whom caloric reserves are critical. A whole body plethysmograph is used to determine body volume and subsequent body density. The volume of air in the chamber is perturbed by a small loudspeaker, and the spectral energy of the resulting pressure change is analyzed. The procedure is entirely comfortable and minimal patient compliance is required. Based on demonstration of technical feasibility, the proposed research will lead to development of a new method of body composition determination that will be highly attractive for commercial application. Commercial application will be found in the general population where the trend towards modification of controllable risk factors is now well established. Medical applications would include health care of low birth weight infants, patients with eating disorders, and the obese.