before and at the end of the walk. The median distance walked was 576 m for men and 494 m for women. The 6MWD was significantly less for men and women who were older and heavier, and for shorter men. The resulting gender-specific regression equations explained about 40% of the variance in the distance walked for healthy adults: for men, 6MWD = (7.57 × heightcm) − (5.02 × age) − (1.76 × weightkg) − 309 m, and for women, 6MWD = (2.11 × heightcm) − (2.29 × weightkg) − (5.78 × age) + 667 m. These reference equations may be used to compute the percent predicted 6MWD for individual adult patients performing the test for the first time, when using the standardized protocol.
Read More: http://www.atsjournals.org/doi/abs/10.1164/ajrccm.158.5.9710086#.VyyJotKLTIV