Crane L, Klerk K, Ruhl A, Warner P, Ruhl C, Roach K E
Division of Physical Therapy, University of Miami, Coral Gables, Florida 33146.
Paraplegia. 1994 Jul;32(7):435-41. doi: 10.1038/sc.1994.70.
The purpose of this study is to determine if measures of pulmonary function are different between endurance trained and nontrained groups of persons with quadriplegia. After minimum criteria were met, 57 subjects with spinal cord injuries ranging from C5-T1 were surveyed to determine type, duration and intensity of exercise training for the previous 6 months. Subjects were assigned to the trained or untrained groups based on the operational definitions of 'trained' vs 'untrained'. A computerized spirometer was used to test forced vital capacity (FVC), forced mid-expiratory flow (FEF25-75%) and maximum voluntary ventilation (MVV) as indicators of respiratory muscle strength, airway patency and respiratory muscle endurance, respectively. Independent t tests and Wilcoxon-Mann-Whitney nonparametric tests revealed no significant differences between the 'trained' and 'untrained' groups for the pulmonary functions. Correlation analysis revealed a moderate relationship (r = 0.498; p < or = 0.0001) between a derived continuous variable called the weighted training equivalent (WTE) and FVC. Regression analysis revealed that WTE and level of injury accounted for approximately 30% of the variance of FVC with WTE contributing 25%. Exercise training may positively affect FVC in persons with quadriplegia.
本研究的目的是确定四肢瘫痪的耐力训练组和非训练组之间的肺功能指标是否存在差异。在满足最低标准后，对57名脊髓损伤程度在C5 - T1之间的受试者进行了调查，以确定其过去6个月的运动训练类型、持续时间和强度。根据“训练有素”与“未训练”的操作定义，将受试者分为训练组或未训练组。使用计算机化肺活量计分别测试用力肺活量（FVC）、用力呼气中期流速（FEF25 - 75%）和最大自主通气量（MVV），作为呼吸肌力量、气道通畅性和呼吸肌耐力的指标。独立t检验和Wilcoxon - Mann - Whitney非参数检验显示，“训练有素”组和“未训练”组之间的肺功能无显著差异。相关分析显示，一个名为加权训练当量（WTE）的派生连续变量与FVC之间存在中等程度的相关性（r = 0.498；p≤0.0001）。回归分析显示，WTE和损伤程度约占FVC方差的30%，其中WTE占25%。运动训练可能对四肢瘫痪患者的FVC产生积极影响。
