Evaluation of Gas Propagation in Snow During Breathing of Subjects Under Simulated Avalanche Snow
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- The length of breathing
研究概览
简要总结
The study is aimed at investigation of respiratory gases propagation in snow. The study involves volunteers breathing into the snow whereas concentrations of gases are measured at various positions in the snow.
详细描述
The study is aimed at investigation of respiratory gases (oxygen and carbon dioxide) propagation in the simulated avalanche snow. The study involves volunteers breathing into the snow whereas concentrations of gases are measured at various positions in the snow. A special apparatus was created for sampling and measurement of gas concentrations and to assure stable geometry of the experiment required for data evaluation.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •healthy and fit volunteers, classified as The American Society of Anesthesiologists class I
- •without a smoking history
排除标准
- •Tiffeneau Index less than 0.70
- •any cardiovascular or respiratory condition
结局指标
主要结局
The length of breathing
时间窗: Continuously within up to 20 minute interval from the beginning of the breathing experiment
Time to termination of the breathing experiment due to the decision of the tested subject, or determined by high end-tidal carbon dioxide value or by the order by the clinician assessing the health status of the subjects.
次要结局
未报告次要终点