## 4 Discussion
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{**Club**} \\ \cline{2-10}
**Parameter** & \multicolumn{3}{c}{**Driver**} & \multicolumn{3}{c}{**5-Iron**} & \multicolumn{3}{c}{**Pitching Wedge**} \\ \cline{2-10}  & \(M\pm SD\) & **ACHS** & **NCHS** & \(M\pm SD\) & **ACHS** & **NCHS** & \(M\pm SD\) & **ACHS** & **NCHS** \\ \hline \multicolumn{10}{c}{_Backswing peak_} \\ \hline Hip line & \(-96\pm 22\)[1] & \(-0.314\)* & \(-0.435\)* & \(-86\pm 21\) & \(-0.275\)* & \(-0.451\)* & \(-79\pm 19\) & \(-0.464\)* & \(-0.539\)* \\ \hline Shoulder line & \(-259\pm 56\) & \(-0.332\)* & \(-0.311\)* & \(-247\pm 53\) & \(-0.263\)* & \(-0.334\)* & \(-239\pm 51\) & \(-0.401\)* & \(-0.424\)* \\ \hline Upper lever & \(-349\pm 47\) & \(-0.330\)* & \(-0.308\)* & \(-337\pm 44\) & \(-0.322\)* & \(-0.341\)* & \(-329\pm 43\) & \(-0.409\)* & \(-0.413\)* \\ \hline Club & \(-610\pm 87\) & \(-0.186\) & \(-0.128\) & \(-576\pm 83\) & \(-0.240\) & \(-0.183\) & \(-568\pm 77\) & \(-0.296\)* & \(-0.237\) \\ \hline Wrist cooking & \(-289\pm 65\)* & \(0.003\) & \(0.068\) & \(-268\pm 62\)* & \(-0.070\) & \(-0.012\) & \(-257\pm 59\) & \(-0.097\) & \(-0.055\) \\ \hline \multicolumn{10}{c}{_Downswing peak_} \\ \hline Hip line & \(394\pm 62\) & \(0.447\)* & \(0.583\)* & \(340\pm 61\) & \(0.398\)* & \(0.579\)* & \(305\pm 63\) & \(0.541\)* & \(0.620\)* \\ \hline Shoulder line & \(711\pm 63\) & \(0.461\)* & \(0.580\)* & \(662\pm 60\) & \(0.398\)* & \(0.603\)* & \(622\pm 63\) & \(0.618\)* & \(0.716\)* \\ \hline Upper lever & \(1142\pm 67\) & \(0.552\)* & \(0.696\)* & \(1077\pm 69\) & \(0.546\)* & \(0.756\)* & \(1020\pm 72\)[1] & \(0.685\)* & \(0.802\)* \\ \hline Club & \(2364\pm 115\) & \(0.906\)* & \(0.787\)* & \(2341\pm 108\) & \(0.846\)* & \(0.799\)* & \(2251\pm 122\) & \(0.874\)* & \(0.867\)* \\ \hline Wrist uncocking & \(1615\pm 138\) & \(0.539\)* & \(0.506\)* & \(1627\pm 127\) & \(0.419\)* & \(0.465\)* & \(1563\pm 131\) & \(0.494\)* & \(0.558\)* \\ \hline \multicolumn{10}{c}{_At BI_} \\ \hline Hip line & \(262\pm 63\) & \(-0.150\) & \(-0.115\) & \(259\pm 53\) & \(-0.026\) & \(0.030\) & \(247\pm 51\) & \(0.155\) & \(0.185\) \\ \hline Shoulder line & \(610\pm 65\) & \(0.265\)* & \(0.299\)* & \(572\pm 62\) & \(0.258\)* & \(0.290\)* & \(553\pm 63\) & \(0.365\)* & \(0.383\)* \\ \hline Upper lever & \(725\pm 84\) & \(0.324\)* & \(0.220\) & \(705\pm 80\) & \(0.441\)* & \(0.315\)* & \(680\pm 79\) & \(0.494\)* & \(0.395\)* \\ \hline \multicolumn{10}{c}{_Peak–to-BI decrease_} \\ \hline Hip line & \(-123\pm 66\)[2] & \(-0.476\)* & \(-0.552\)* & \(-81\pm 62\)* & \(-0.417\)* & \(-0.507\)* & \(-58\pm 55\)* & \(-0.517\)* & \(-0.575\)* \\ \hline Shoulder line & \(-101\pm 80\)* & \(-0.148\) & \(-0.182\) & \(-89\pm 71\)* & \(-0.083\) & \(-0.150\) & \(-69\pm 65\)* & \(-0.212\) & \(-0.283\)* \\ \hline Upper lever & \(-417\pm 100\) & \(-0.102\) & \(-0.287\)* & \(-372\pm 94\) & \(-0.026\) & \(-0.285\)* & \(-336\pm 91\)* & \(-0.183\) & \(-0.373\)* \\ \hline \hline \end{tabular} Abbreviations: ACHS—actual clubhead speed, and NCHS—normalized clubhead speed. * Nonparametric (Spearman’s) correlation coefficient; [1] Number of outliers removed; Statistically significant (\(p<0.05\)).  
\end{table} 
Table 4: Correlation coefficients of the angular velocity parameters (in \({}^{\circ}\)/s) to clubhead speed (\(n=66\)). from normal distribution in the longer club conditions (Table 1). This suggests that the way golfers start the transition phase is highly dependent on the individual and the swing style employed. In a study involving 74 male elite golfers, [PERSON] and colleagues [2] identified five distinct swing styles based on the X-factor pattern and the SL acceleration characteristic. The LBS (large backswing stretch) style, characterized by the longest transition phase and a complete (and well-spaced) proximal-to-distal transition sequence, showed an almost 1:1:1 (109:117:119 ms) time ratio between the transition, early downswing, and late downswing phases.