School of Physiotherapy, Curtin University of Technology, Perth, Western Australia.
Physiother Theory Pract. 2009 Oct;25(7):516-22. doi: 10.3109/09593980802664711.
Six-minute walk distance (6MWD) is commonly used as a measure of functional exercise capacity in clinical practice and research. Regression equations to predict 6MWD in healthy individuals are available, but the equations predict distances that vary considerably for an individual. The aims of this study were to 1) measure 6MWDs in healthy Caucasian Australians aged 45-85 years; 2) determine whether evidence exists for Australian-specific prediction equations for Caucasian individuals by comparing measured 6MWDs with predicted 6MWDs derived by using published regression equations; and 3) develop regression equations for males and females. One hundred nine subjects (48 males) completed the 6-minute walk test (6MWT). Measurements of height, leg length, weight, habitual physical activity, and peak heart rate (HR) achieved during the 6MWT were obtained. 6MWD (better of two tests) was 682 +/- 73 m (mean +/- SD) and 643 +/- 70 m in the males and females, respectively (p<0.01). Published regression equations underestimated 6MWDs in female subjects. Gender-specific regression equations using age and anthropometric data explained 40% and 43% of the variance in 6MWD in males and females, respectively. Validation of the regression equations in a prospective subject cohort is required.
六分钟步行距离（6MWD）常用于临床实践和研究中衡量功能性运动能力。目前已有预测健康个体 6MWD 的回归方程，但这些方程预测的个体距离差异较大。本研究的目的是：1）测量 45-85 岁的健康白种澳大利亚人 6MWD；2）通过比较使用发表的回归方程得出的预测 6MWD 与实测 6MWD，确定是否存在针对白种个体的澳大利亚特异性预测方程；3）为男性和女性制定回归方程。109 名受试者（48 名男性）完成了 6 分钟步行测试（6MWT）。测量了身高、腿长、体重、习惯性体力活动和 6MWT 期间达到的最大心率（HR）。男性和女性的 6MWD（两次测试中较好的一次）分别为 682±73m 和 643±70m（p<0.01）。发表的回归方程低估了女性受试者的 6MWD。使用年龄和人体测量数据的性别特异性回归方程分别解释了男性和女性 6MWD 中 40%和 43%的差异。需要在前瞻性受试者队列中验证回归方程。
