Determinants of asymmetry (n=836)
| Symmetry Index | Leg length (SI) | Sex | Height | Fat mass | Previous injury | Running experience | Running regularity (last 12 months) | Shoe version | Running speed | Adjusted R2 |
| Step length | −0.22 (−0.47 to 0.04) | −1.06 (−2.23 to 0.11) | −0.02 (−0.03 to −0.01) | −0.24 (−0.42 to −0.06) | 0.02 | |||||
| 0.095 | 0.077 | 0.005 | 0.011 | |||||||
| Contact time | 0.27 (−0.04 to 0.57) | −0.04 (−0.06 to −0.02) | 0.02 | |||||||
| 0.085 | <0.001 | |||||||||
| Flight time | 0.21 (0.01 to 0.40) | −0.02 (−0.03 to −0.01) | −0.11 (−0.18 to −0.05) | 0.02 | ||||||
| 0.043 | 0.003 | <0.001 | ||||||||
| Duty factor | 0.26 (−0.04 to 0.57) | 0.27 (−0.04 to 0.57) | −0.04 (−0.06 to −0.02) | 0.02 | ||||||
| 0.093 | 0.088 | <0.001 | ||||||||
| Vertical displacement of CoM | 0.82 (0.23 to 1.41) | −0.94 (−1.53 to −0.34) | −3.53 (−6.86 to −0.19) | 0.02 | ||||||
| 0.006 | 0.002 | 0.038 | ||||||||
| Vertical stiffness | −0.04 (−0.07 to 0.00) | 0.07 (0.01 to 0.13) | 0.01 | |||||||
| 0.064 | 0.032 | |||||||||
| Peak vertical force | 0.64 (0.28 to 1.01) | −0.66 (−1.02 to −0.28) | −2.60 (−4.67 to −0.52) | 0.02 (0.00 to 0.03) | −0.22 (−0.49 to 0.004) | 0.03 | ||||
| 0.001 | 0.001 | 0.014 | 0.045 | 0.090 | ||||||
| Peak breaking force | 2.77 (1.28 to 4.26) | −0.09 (−0.16 to −0.01) | 0.02 | |||||||
| <0.001 | 0.022 | |||||||||
| Peak propulsive force | 0.04 (−0.01 to 0.08) | <0.01 | ||||||||
| 0.086 | ||||||||||
| VIP | −13.7 (−23.8 to −3.7) | 0.01 | ||||||||
| 0.007 | ||||||||||
| Time to VIP | <0.01 | |||||||||
| Vertical instantaneous loading rate | 2.19 (−0.41 to 4.78) | −12.1 (−22.9 to −1.3) | 3.30 (1.43 to 5.17) | 0.02 | ||||||
| 0.098 | 0.028 | 0.001 | ||||||||
| Vertical average loading rate | −1.00 (−1.83 to −0.16) | 0.01 | ||||||||
| 0.020 |
Values are coefficients (95% CI). P values are presented in italics. P values<0.05 are presented in bold.
CoM, centre of mass; SI, Symmetry Index; VIP, vertical impact peak.