Table 2. Mean (SE) of Joint moments, powers and Minimum toe clearance-related dependent measures.
Domain | Dependent measure | Lower-level step | Higher-level step | ||||||
---|---|---|---|---|---|---|---|---|---|
C1 | C2 | C3 | C4 | C1 | C2 | C3 | C4 | ||
Joint Moments and Powers | Peak ankle dorsiflexion moment (Nm/kg) | 0.04 (0.01) | 0.04 (0.01) | 0.04 (0.01) | 0.04 (0.01) | 0.07 (0.02) | 0.06 (0.01) | 0.06 (0.02) | 0.06 (0.02) |
Peak ankle plantar flexion moment (Nm/kg) | 1.65 (0.07) | 1.52 (0.07) | 1.64 (0.06) | 1.52 (0.06) | 1.85 (0.08) | 1.71 (0.09) | 1.83 (0.08) | 1.70 (0.07) | |
Peak knee extensor moment (Nm/kg) | 0.41 (0.04) | 0.46 (0.03) | 0.43 (0.04) | 0.46 (0.03) | 0.50 (0.05) | 0.50 (0.04) | 0.50 (0.05) | 0.50 (0.04) | |
Peak knee flexor moment (Nm/kg) | 1.07 (0.08) | 1.02 (0.07) | 1.07 (0.09) | 0.99 (0.06) | 0.92 (0.08) | 0.91 (0.06) | 0.93 (0.07) | 0.88 (0.06) | |
Peak hip extensor moment (Nm/kg) | 0.36 (0 06) | 0.33 (004) | 0.38 (0.05) | 0.35 (0.04) | 0.27 (0.05) | 0.25 (0.05) | 0.27 (0.05) | 0.23 (0.05) | |
Peak hip flexor moment (Nm/kg) | 0.72 (0.04) | 0.65 (0.04) | 0.71 (0.04) | 0.66 (0.05) | 0.72 (0.05) | 0.66 (0.07) | 0.71 (0.07) | 0.67 (0.07) | |
Peak ankle power absorbed (W/kg) | 0.37 (0.06) | 0.28 (0.02) | 0.36 (0.03) | 0.31 (0.03) | 0.59 (0.11) | 0.34 (0.06) | 0.54 (0.09) | 0.37 (0.08) | |
Peak ankle power produced (W/kg) | 3.78 (0.46) | 3.43 (0.38) | 3.83 (0.40) | 3.23 (0.31) | 3.84 (0.46) | 3.62 (0.42) | 3.77 (0.44) | 3.38 (0.39) | |
Peak knee power produced (W/kg) | 1.70 (0.20) | 1.45 (0.11) | 1.75 (0.16) | 1.52 (0.14) | 1.71 (0.16) | 1.57 (0.13) | 1.73 (0.13) | 1.52 (0.13) | |
Peak hip power produced (W/kg) | 1.10 (0.07) | 0.88 (0.07) | 1.13 (0.09) | 0.90 (0.09) | 1.20 (0.10) | 0.97 (0.11) | 1.19 (0.10) | 0.95 (0.09) | |
Peak hip power absorbed (W/kg) | 0.32 (0.12) | 0.26 (0.13) | 0.32 (0.11) | 0.22 (0.09) | 0.26 (0.08) | 0.20 (0.06) | 0.25 (0.07) | 0.22 (0.06) | |
Minimum Toe Clearance | Anterior (mm) | 22.32 (0.89) | 21.38 (0.90) | 23.98 (1.15) | 21.68 (1.01) | 25.19 (0.96) | 25.36 (1.14) | 24.87 (0.82) | 25.69 (1.10) |
Vertical (mm) | 10.61 (0.52) | 10.30 (0.43) | 11.00 (0.50) | 9.96 (0.45) | 8.70 (0.25) | 8.30 (0.32) | 8.45 (0.39) | 8.51 (0.32) | |
Speed | Average speed (mm/s) | 656.91 (33.87) | 523.74 (43.13) | 646.53 (33.47) | 505.22 (35.45) | 617.74 (32.71) | 505.47 (42.47) | 609.33 (26.83) | 483.83 (36.20) |
C1 - ascending the stairs without counting and carrying a box, C2 - ascending the stairs while counting backwards and not carrying a box, C3 - ascending the stairs while carrying a box and not counting, C4 -ascending the stairs while counting backwards and carrying a box