Table 2. Tempo-spatial variables under shoe, floor and shoe × floor conditions.
| STEL (cm) | STRL (cm) | WV (m/s) | FA (°) | SDI (cm) | SV (m/s) | TFF (s) | CSL (cm) | |
| Shoe | ||||||||
| SP | 70.1(6.1) | 130.2(10.8) | 1.85(0.29) | 16.4(7.6) | 7.4***(10.5) | 0.73*(0.37) | 0.268*(0.074) | 65.0(8.5) |
| SL | 70.7(6.3) | 131.5(9.9) | 1.83(0.25) | 16.6(7.9) | 9.9***(10.5) | 0.79*(0.31) | 0.285*(0.071) | 64.2(8.8) |
| Floor | ||||||||
| FP | 69.6(5.8) | 131.2* ab(10.1) | 1.87**a(0.28) | 19.1***a(8.3) | 3.9***a(6.3) | 0.60***a(0.28) | 0.266* a(0.074) | 66.9***a(7.5) |
| FL | 71.2(5.2) | 132.3* b(10.7) | 1.87**a(0.29) | 15.6***b(7.8) | 10.5***b(10.8) | 0.82***b(0.31) | 0.274* ab(0.079) | 62.8***b(9.1) |
| FF | 70.5(7.3) | 129.1* a(10.2) | 1.78**b(0.24) | 14.7***b(6.4) | 11.4***b(12.1) | 0.86***b(0.38) | 0.290* b(0.062) | 64.1***b(8.9) |
| Floor×Shoe | ||||||||
| FP-SP | 69.0(6.5) | 130.9(9.8) | 1.88(0.27) | 19.0(8.1) | 1.6(1.3) | 0.51* a(0.19) | 0.251(0.064) | 67.4(6.2) |
| FL-SP | 70.7(5.9) | 130.8(12.3) | 1.90(0.35) | 15.6(7.4) | 10.0(12.5) | 0.81* bc(0.35) | 0.266(0.087) | 62.5(9.6) |
| FP-SL | 70.1(5.1) | 131.4(10.6) | 1.85(0.28) | 19.3(8.6) | 6.3(8.2) | 0.69* b(0.32) | 0.281(0.080) | 66.4(8.7) |
| FL-SL | 71.8(4.3) | 133.9(8.7) | 1.85(0.22) | 15.6(8.3) | 10.9(9.1) | 0.83* bc(0.26) | 0.281(0.071) | 63.2(8.6) |
| FF-SL | 70.3(8.7) | 129.3(10.2) | 1.80(0.26) | 14.9(6.2) | 12.5(12.9) | 0.85* b(0.34) | 0.292(0.061) | 63.0(9.0) |
| FF-SP | 70.7(5.9) | 128.8(10.3) | 1.76(0.22) | 14.5(6.7) | 10.4(11.2) | 0.87* b(0.42) | 0.288(0.064) | 65.2(8.7) |
*
p<0.05; ** p<0.01; *** p<0.001; a, b, c: homogeneous subsets by Duncan analysis with α = 0.05; FF = flat floor; FP = floor with groove-perpendicular; FL = floor with groove-parallel; SP = shoe-groove-perpendicular; SL = shoe-groove-parallel ; STEL: step length; STRL: stride length; WV: walking velocity; FA: foot angle; SDI: slip distance; SV: slip velocity; TFF: time to foot flat; CSL: compensatory step length.