Figure 2.

Regression between the sqrt. drop height (DH) and the peak vertical ground reaction force (PvGRF) classified by sample frequency (low frequency: $\text{PvGRF}=\mathrm{0.44}\sqrt{\text{DH}}+\mathrm{0.45}$, RMSE = 0.83, adjusted-R ² = 0.73, P < 0.001; medium frequency: $\text{PvGRF}=\mathrm{0.49}\sqrt{\text{DH}}+\mathrm{0.37}$, RMSE = 0.94, adjusted-R ² = 0.45, P < 0.001; high frequency: $\text{PvGRF}=\mathrm{0.75}\sqrt{\text{DH}}+\mathrm{0.17}$, RMSE = 0.46, adjusted-R ² = 0.96, P < 0.001).