Equation (equation number in parentheses) . | Signal . | Slope C . | Offset D . | R2 . |
---|---|---|---|---|
vpre=Cvv̄+Dv(6) | COM velocity | 1.003±0.009 | 0.011±0.006 | 0.99 |
COM work rate | 0.998±0.007 | 0.005±0.005 | 0.99 | |
Vertical GRF | 1.094±0.018 | –0.017±0.012 | 0.98 | |
δvel=Cvels+Dvel(7) | COM velocity | 0.307±0.037 | 0.088±0.038 | 0.69 |
COM work rate | 0.259±0.025 | 0.069±0.026 | 0.75 | |
Vertical GRF | –0.001±0.038 | 0.217±0.039 | 0.31 | |
δimp=Cimps+Dimp(8) | COM velocity | 0.477±0.021 | –0.037±0.022 | 0.91 |
COM work rate | 0.470±0.019 | 0.008±0.020 | 0.93 | |
Vertical GRF | 0.609±0.024 | –0.067±0.025 | 0.93 | |
WCO=CCO(vpre·δvel)2+DCO(9) | COM velocity | 0.804±0.068 | 0.009±0.004 | 0.75 |
COM work rate | 1.153±0.088 | 0.008±0.004 | 0.77 | |
Vertical GRF | 1.388±0.181 | 0.009±0.004 | 0.53 | |
WPO=CPO(vpre·δvel)2+DPO(10) | COM velocity | 0.507±0.064 | 0.017±0.004 | 0.62 |
COM work rate | 0.740±0.089 | 0.017±0.004 | 0.60 | |
Vertical GRF | 0.688±0.147 | 0.019±0.003 | 0.40 | |
\(W_{\mathrm{CO}}=C_{\mathrm{CO}}^{{^\prime}}({\bar{v}}{\cdot}S)^{2}+D_{\mathrm{CO}}^{{^\prime}}\) (11) | COM velocity | 0.128±0.008 | 0.008±0.003 | 0.82 |
COM work rate | 0.129±0.008 | 0.008±0.003 | 0.81 | |
Vertical GRF | 0.086±0.009 | 0.010±0.003 | 0.65 | |
\(W_{\mathrm{PO}}=C_{\mathrm{PO}}^{{^\prime}}({\bar{v}}{\cdot}S)^{2}+D_{\mathrm{PO}}^{{^\prime}}\) (12) | COM velocity | 0.081±0.009 | 0.017±0.003 | 0.66 |
COM work rate | 0.082±0.009 | 0.017±0.004 | 0.63 | |
Vertical GRF | 0.046±0.008 | 0.019±0.003 | 0.49 |
Equation (equation number in parentheses) . | Signal . | Slope C . | Offset D . | R2 . |
---|---|---|---|---|
vpre=Cvv̄+Dv(6) | COM velocity | 1.003±0.009 | 0.011±0.006 | 0.99 |
COM work rate | 0.998±0.007 | 0.005±0.005 | 0.99 | |
Vertical GRF | 1.094±0.018 | –0.017±0.012 | 0.98 | |
δvel=Cvels+Dvel(7) | COM velocity | 0.307±0.037 | 0.088±0.038 | 0.69 |
COM work rate | 0.259±0.025 | 0.069±0.026 | 0.75 | |
Vertical GRF | –0.001±0.038 | 0.217±0.039 | 0.31 | |
δimp=Cimps+Dimp(8) | COM velocity | 0.477±0.021 | –0.037±0.022 | 0.91 |
COM work rate | 0.470±0.019 | 0.008±0.020 | 0.93 | |
Vertical GRF | 0.609±0.024 | –0.067±0.025 | 0.93 | |
WCO=CCO(vpre·δvel)2+DCO(9) | COM velocity | 0.804±0.068 | 0.009±0.004 | 0.75 |
COM work rate | 1.153±0.088 | 0.008±0.004 | 0.77 | |
Vertical GRF | 1.388±0.181 | 0.009±0.004 | 0.53 | |
WPO=CPO(vpre·δvel)2+DPO(10) | COM velocity | 0.507±0.064 | 0.017±0.004 | 0.62 |
COM work rate | 0.740±0.089 | 0.017±0.004 | 0.60 | |
Vertical GRF | 0.688±0.147 | 0.019±0.003 | 0.40 | |
\(W_{\mathrm{CO}}=C_{\mathrm{CO}}^{{^\prime}}({\bar{v}}{\cdot}S)^{2}+D_{\mathrm{CO}}^{{^\prime}}\) (11) | COM velocity | 0.128±0.008 | 0.008±0.003 | 0.82 |
COM work rate | 0.129±0.008 | 0.008±0.003 | 0.81 | |
Vertical GRF | 0.086±0.009 | 0.010±0.003 | 0.65 | |
\(W_{\mathrm{PO}}=C_{\mathrm{PO}}^{{^\prime}}({\bar{v}}{\cdot}S)^{2}+D_{\mathrm{PO}}^{{^\prime}}\) (12) | COM velocity | 0.081±0.009 | 0.017±0.003 | 0.66 |
COM work rate | 0.082±0.009 | 0.017±0.004 | 0.63 | |
Vertical GRF | 0.046±0.008 | 0.019±0.003 | 0.49 |
Signals were based on center of mass (COM) velocity, the interval over which positive and negative work is performed on the COM, and vertical ground reaction force (GRF) indicating double support. The best-fit coefficients(C and D) are reported, along with R2values