Ukyab T T, Vaz M
Department of Physiology, St John's Medical College, Bangalore.
Indian J Physiol Pharmacol. 1999 Oct;43(4):435-42.
Maximal expiratory pressure (MEP) can be used as an index of respiratory muscle strength and of the ability of an individual to cough effectively. The influence of anthropometry, nutritional status and ethnicity on MEP was studied in 113 young healthy Indian males and 53 Tibetans between 18 and 30 years of age. All subjects underwent an anthropometric assessment. Anthropometric variables (BMI, log BMI) explained only 12.5% of the variance in MEP. MEP was significantly lower in chronically undernourished subjects when compared with anthropometrically similar underweight subjects (P < 0.05). The Indian subjects had significantly lower MEP's than BMI matched Tibetan subjects (P < 0.01). This difference may have been due to the higher chest circumferences in the Tibetans (P < 0.01). While general muscle strength (maximal hand grip) and MEP were significantly correlated (r = 0.26, P < 0.01), the strength of the correlation was relatively low, suggesting that the determinants of the two measures were considerably different.
最大呼气压力（MEP）可作为呼吸肌力量以及个体有效咳嗽能力的指标。在113名18至30岁的年轻健康印度男性和53名藏族男性中，研究了人体测量学、营养状况和种族对MEP的影响。所有受试者均接受了人体测量评估。人体测量学变量（BMI、BMI对数）仅解释了MEP变异的12.5%。与人体测量学上相似的体重过轻受试者相比，长期营养不良的受试者的MEP显著更低（P<0.05）。印度受试者的MEP显著低于BMI匹配的藏族受试者（P<0.01）。这种差异可能是由于藏族人的胸围更大（P<0.01）。虽然一般肌肉力量（最大握力）与MEP显著相关（r=0.26，P<0.01），但相关性强度相对较低，表明这两种测量方法的决定因素有很大差异。
