Quantities analysis of human information using GPS receiver and DLW method

使用 GPS 接收器和 DLW 方法对人体信息进行数量分析

• 批准号: 15500491
• 负责人: SEKI Kazuyoshi
• 金额: $ 2.11万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15500491/
• 关键词: GPS; Human activity; DLW; energy expenditure; the gold standard; DLW法(二重標識法); 携帯GPS

GPS is funded by and controlled by the U.S.Department of Defense (DOD). While there are many thousands of civil users of GPS world-wide, the system was designed for and is operated by the U.S. military. GPS provides specially coded satellite signals that can be processed in a GPS receiver, enabling the receiver to compute position, velocity and time.Four GPS satellite signals are used to compute positions in three dimensions and the time offset in the receiver clock. We already have been studied to use this Global Positioning System in applying to Physical Activity. Estimation of moving distance is to get accuracyusing handy GPS receiver And with Doubly Labeled Water method. Human movement activity was analyzed. Validation against the precise and near continuous respiratory gas exchange has demonstrated that the method is accurate(1〜3%)and has a precision of 4% to 7%, depending isotope dose, length of elimination period, and frequency of sampling(two-point vs. multipoint). The method is based on a number assumptions that must be taken into account depending on the application of human activity. There is still some debate on refinement of the kinetic model. And we can consider the DLW method the gold standard for assessing energy expenditure.

GPS由美国国防部（DOD）资助和控制。虽然全球有成千上万的民用GPS用户，但该系统是为美国军方设计和运营的。全球定位系统提供可在全球定位系统接收器中处理的特别编码的卫星信号，使接收器能够计算位置、速度和时间。四个全球定位系统卫星信号用于计算三维位置和接收器时钟中的时间偏移。我们已经研究过将这个全球定位系统应用于体育活动。移动距离的估计是利用便携式GPS接收机和双标记水方法来获得精度。对人体运动活动进行了分析。根据精密和接近连续的呼吸气体交换进行的验证表明，该方法具有准确度（1 ~ 3%），精密度为4%至7%，具体取决于同位素剂量、消除期长度和采样频率（两点与多点）。该方法基于一些假设，这些假设必须根据人类活动的应用加以考虑。关于动力学模型的改进仍有一些争论。我们可以将DLW方法视为评估能量消耗的金标准。