Table 1. Test (T1) and re-test (T2) analysis for oxygen cost (ml·kg·min) of free treadmill walking (SSWS). Mean values for velocity (m·s) and oxygen cost. Data are means (±SD).
%SSWS |
Velocity |
O2 cost (T1) |
O2 cost (T2) |
Bias |
Random error |
t-test (p) |
-60 |
.52 |
.27 (.05) |
.28 (.05) |
-.01 |
.08 |
.31 |
-40 |
.77 |
.20 (.03) |
.21 (.02) |
-.01 |
.07 |
.36 |
-20 |
1.03 |
.17 (.03) |
.17 (.02) |
-.01 |
.06 |
.46 |
SSWS |
1.30 |
.16 (.02) |
.17 (.02) |
-.01 |
.05 |
.20 |
+20 |
1.55 |
.15 (.02) |
.16 (.02) |
-.01 |
.05 |
.14 |
+40 |
1.77 |
.16 (.01) |
.17 (.02) |
-.01 |
.04 |
.17 |
+60 |
2.00 |
.19 (.01) |
.19 (.03) |
.00 |
.04 |
.57 |