胸围与氧通气当量及其相关参数间的关系

The Relationship between Chest Circumference and Parameters Related to Ventilatory Equivalents for Oxygen

考察胸围与氧通气当量及其相关参数间的关系。受试者为197名汉族成年男性。测定其安静状态下胸围(平静呼气末)、身高、体重、肺通气量、摄氧量和氧通气当量。结果显示:在控制协变量前后,胸围皆与氧通气当量无关(所有P≥0.67);在控制协变量之前,胸围与肺通气量和摄氧量关联(所有P<0.001),但在控制身体质量指数(BMI)之后,这些关联被废除(所有P≥0.47)。我们认为:安静状态下,胸围(平静呼气末)可能与氧通气当量无关,胸围与肺通气量和摄氧量间的关联可能是由BMI的变化而引起。

This study examined the relationship between chest circumference（CC） and parameters related to ventilatory equivalents for oxygen（VE/VO2）.197 ethnic Han men were selected.At rest,CC（calm expiratory）,height,body weight,lung ventilation（VE）,oxygen uptake（VO2）,and VE/VO2 were measured.The results showed that CC was not associated with VE/VO2 before or after controlling for covariates（P≥0.67 for all）.CC was associated with VE and VO2 before adjustment for covariates（P0.001 for all）,but the associations were abolished after controlling for body mass index（BMI）（P≥0.47 for all）.We conclude that CC may be not related to VE/VO2,and the associations of CC with VE and VO2 may be mediated through BMI.