DeGroodt E G, van Pelt W, Borsboom G J, Quanjer P H, van Zomeren B C
Department of Physiology, University of Leiden, The Netherlands.
Eur Respir J. 1988 Feb;1(2):102-8.
In the follow-up study of adolescents residual volume (RV), vital capacity (VC), closing volume (CV), thorax height and thorax width were measured at six month intervals over a six year period; 149 girls and 477 boys, whose ages ranged between 11.5 and 18.5 yr during the follow-up, were investigated. In healthy subjects and in those with respiratory symptoms the rates of change of thoracic dimensions, as calculated by a robust linear regression technique, were moderately well correlated; the growth rates of RV and VC were only slightly correlated, and both were moderately well correlated with changes in thorax dimensions. Thorax height increased relative to thorax width in boys and girls during the follow-up. In boys, thorax height continued to grow, when standing height and thorax width had attained adult values in girls. Thus the thorax attains a more elongated shape. During the adolescent growth spurt the residual volume as a percentage of total lung capacity (RV%TLC) within subjects increased on average 0.6% per yr, and closing volume as a percentage of vital capacity (CV%VC) decreased on average 0.5% per yr. Both of these changes can be accounted for by decreased thorax compliance and increased outward chest recoil at low lung volumes.
在一项针对青少年残气量（RV）、肺活量（VC）、闭合气量（CV）的随访研究中，在六年时间里每隔六个月测量一次胸廓高度和胸廓宽度；对随访期间年龄在11.5至18.5岁之间的149名女孩和477名男孩进行了调查。在健康受试者和有呼吸道症状的受试者中，通过稳健线性回归技术计算得出的胸廓尺寸变化率具有中等程度的相关性；残气量和肺活量的增长率仅有轻微相关性，且两者与胸廓尺寸变化均具有中等程度的相关性。在随访期间，男孩和女孩的胸廓高度相对于胸廓宽度均有所增加。在女孩的身高和胸廓宽度达到成人值时，男孩的胸廓高度仍在继续增长。因此，胸廓呈现出更细长的形状。在青春期生长突增期间，受试者体内残气量占肺总量的百分比（RV%TLC）平均每年增加0.6%，闭合气量占肺活量的百分比（CV%VC）平均每年下降0.5%。这两种变化均可归因于胸廓顺应性降低以及低肺容量时胸壁向外回弹增加。
