## 3 Results
### Intersegmental Coordination
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & \multicolumn{3}{c}{**Older Adults Group (\(\mu\) = 20)**} & \multicolumn{3}{c}{**Younger Adults Group (\(\mu\) = 20)**} & \multicolumn{3}{c}{**Main Effect**} \\
**Variables** & **90\({}^{\circ}\)** & **135\({}^{\circ}\)** & **180\({}^{\circ}\)** & **90\({}^{\circ}\)** & **135\({}^{\circ}\)** & **180\({}^{\circ}\)** & **Group Effect** & **Amplitude Effect** \\  & & & & & & & & **\(p\)-Value (\(\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{ \mathbf{\mathbf{\mathbf{ \mathbf{  \mathbf{   }}}}}}}}}}}}\))** & **\(p\)-Value (\(\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{ \mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{       }}}}}}}}}}}}}\))** & **\(p\)-Value (\(\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{ \mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{\mathbf{    \mathbf{    \mathbf{    }}}}}}}}}}}}}\))** \\ \hline
**Segment onset latencies (s)** & & & & & & & & \\
**Head** & 0.40 (0.03) & 0.42 (0.04) & 0.55 (0.07) & 0.37 (0.05) & 0.40 (0.07) & 0.48 (0.06) & 0.003 * (0.22) & \(<\)0.001 * (0.07) \\
**Torax** & 0.49 (0.05) & 0.52 (0.05) & 0.55 (0.07) & 0.43 (0.05) & 0.45 (0.06) & 0.53 (0.05) & 0.062 (0.03) & \(<\)0.001 * (0.55) \\
**Pelvis** & 0.51 (0.1) & 0.53 (0.09) & 0.62 (0.11) & 0.50 (0.09) & 0.55 (0.1) & 0.58 (0.09) & 0.596 (0.02) & \(<\)0.001 * (0.21) \\
**Leading foot** & 0.68 (0.11) & 0.68 (0.10) & 0.80 (0.13) & 0.55 (0.11) & 0.61 (0.13) & 0.62 (0.10) & \(<\)0.001 * (0.24) & 0.02* (0.15) \\
**Tailing foot** & 1.12 (0.14) & 1.15 (0.16) & 1.17 (0.24) & 0.68 (0.31) & 0.74 (0.20) & 0.86 (0.26) & \(<\)0.001 * (0.48) & 0.225 * (0.04) \\
**Peak head yaw velocity (s\({}^{-1}\))** & 103.22 (17.77) & 117.27 (18.75) & 139.61 (26.83) & 123.54 (12.81) & 151.54 (25.73) & 172.81 (24.86) & \(<\)0.001 * (0.19) & \(<\)0.001 * (0.33) \\ \hline
**Segment angular separations (\({}^{\circ}\))** & & & & & & & & \\
**Peak head-index** & 10.00 (5.21) & 13.60 (7.13) & 18.80 (10.00) & 20.14 (7.73) & 23.80 (8.30) & 21.57 (7.00) & \(<\)0.001 * (0.21) & 0.025 (0.08) \\
**Peak head-pelvis** & 10.86 (5.77) & 15.10 (7.62) & 19.63 (11.46) & 15.59 (7.62) & 23.42 (11.27) & 27.63 (12.41) & \(<\)0.001 * (0.11) & \(<\)0.001 * (0.20) \\ \hline
**Total step (n)** & 2.78 (0.38) & 3.48 (0.44) & 4.33 (0.49) & 1.95 (0.15) & 2.75 (0.44) & 3.25 (0.41) & \(<\)0.001 * (0.58) & \(<\)0.001 * (0.77) \\ \hline
**Step frequency (Hz)** & 0.60 (0.30) & 1.17 (0.30) & 1.53 (0.21) & 0.52 (0.24) & 1.10 (0.40) & 1.34 (0.26) & 0.123 (0.02) & 0.979 (0.01) \\ \hline
**Step duration (s)** \(\checkmark\) & 1.58 (0.26) & 2.09 (0.38) & 2.53 (0.66) & 0.95 (0.15) & 1.91 (0.36) & 2.31 (0.28) & \(<\)0.001 * (0.22) & \(<\)0.001 * (0.79) \\ \hline
**Step size (\({}^{\circ}\))** & 60.81(11.88) & 71.21 (10.59) & 80.28 (11.62) & 73.54 (14.31) & 88.55 (24.40) & 95.00 (25.95) & \(<\)0.001 * (0.17) & \(<\)0.001 * (0.27) \\ \hline
**Turn speed (s\({}^{-1}\))** \(\checkmark\) & 58.59 (10.46) & 66.54 (11.70) & 75.56 (18.31) & 96.63 (21.30) & 73.92 (17.87) & 78.80 (9.73) & \(<\)0.001 * (0.23) & \(<\)0.001 * (0.07) \\ \hline \hline \end{tabular} \(\checkmark\) D denotes a significant interaction ( \(p\) < 0.055 ). D denotes significant main effects ( \(p\) < 0.055 from Murod Model Analysis of Variance,  
\end{table} 
Table 1: Shows the mean and standard deviations (SD) for turning variables, as well as the interaction between group and turning amplitude, as determined by Mixed Model Analysis of Variance.