Table 4. Gait characteristic of six Kenyan runners at five running speeds. Data are in mean (SD). Speed (m/s) Ground contact time (ms) Stride frequency (Hz) Relative stride length Left Right 3.5 220 (25) 212 (24) 2.92 (0.17) 0.68 (0.02) 4.0 208 (25) 199 (22) 3.02 (0.18) 0.76 (0.03) 4.5 201 (21) 193 (20) 3.09 (0.17) 0.82 (0.03) 5.0 183 (27) 180 (22) 3.19 (0.18) 0.89 (0.03) 5.4 177 (26) 170 (22) 3.26 (0.20) 0.93 (0.03) Significant main effect of leg for ground contact time (p ¼ 0.05). Significant main effect of speed for all gait parameters (p ¼ 0.05)