Giant swings have been routinely performed by gymnasts on the high bar, rings, and uneven bars and have been the subject of several investigations (Arampatzis & Bruggemann, 1998; Prassas et aI., 1998; Yeadon & Brewin, 2003). However, there is only one scientific inquiry on the recently introduced giant swings on the parallel bars (Prassas et aI., 2004). Although there are similarities between the mechanics of giant swings already studied and one might expect similar mechanics for parallel bar giants, the scarcity of data on the latter precludes definite conclusions. The purpose of this study was to investigate the kinematics of giant swings on the parallel bars.
The data demonstrate that the trend of the variables is very similar to those of the giant on the bar. The main difference is of course the angle observed on the knee, which necessarily something to parallel undergoes a different trend.
Graphically we can note that the linear speeds of the ankle and knee are similar because the gymnast must flex the leg, and then the ankle and knee position are superimposed.
As regards the angles instead, we can see how the performance of the basin has a loading opening and then closing in the swing phase.
In the moment when the gymnast performs the step of loading the giant, the angle of the knee begins to close, until you get to about 90°.
The angular speed show how the increases its speed in the thigh of swing phase and at the same time also increases the one of the leg, precisely due to its extension.