Table 1. Mean and standard deviation (SD) of the distance (m) traveled during 6MWT for TENS, placebo TENS and no TENS conditions (n=30).

Condition	Mean	SD	Minimum	Maximum
No TENS	335.1	83.9	90	540
TENS	361.7	88.4	108	594
Placebo TENS	332.3	102.6	67	577