it can be seen that there is a large jump in the amount of negative horizontal velocity between 40m and 50m. Close up view of release of the distance interval graphįrom Fig.4. Six trials at each scenario were completed using the same protocol as in Study 1 and the results are shown in Figure 4.įig.4. At each of these distances a blank target and target face were used. Study 2: A study was undertaken analysing the archer’s performance from 20m – 70m at intervals of 10m. These findings could then be used to optimise the archer’s training. As a consequence of the previous study a further study was undertaken to investigate at what distance the archer’s technique fell below an acceptable level. This forward movement does not occur in the close target scenario. The negative horizontal velocity shown at release (at time =0) relates to the forward movement of the draw arm. it can be seen that there is a clear difference between the close scenario and the 70m scenarios. The videos were then digitised and the data smoothed using Quintic Biomechanics software which gave the results shown in Fig.3.įrom Fig.3. Digitisation markers were then placed on the front shoulder and draw arm shoulder, elbow and wrist. A normal target (70m) with a target faceĦ trials of each scenario were recorded using a Casio EX-F1 high speed camera in the coronal plane (same as Figs.A normal target (70m) with no target face.A close target (approx 5m) with no target face.Study 1: The archer was first assessed to see the if there were differences between the following scenarios: In the above Figures it can be seen that there is a small movement forward of the draw arm as the release is initiated.

This is shown in Figs 1 and 2 below:įig.1. The archer had been identified by the coach as having a collapse when they released the arrow which caused a large amount of variability and inconsistency in the shot.

In this case study we will focus on this error in technique and how Quintic software was used by the EIS to analyse and assess one archer in particular. When shooting, the archer has to juggle maintaining an aim on the target, with a precise timing of the release of the arrow. Collapses most often occur when the signal from the brain for the fingers to relax and release the string also causes the muscles of the shoulder complex to relax. Any collapse or movement forward of the draw arm results in a reduction of velocity of the arrow and this results in the arrow going low on the target.

When I get the chance I enjoy a bit photography too.In recurve archery it is important that the archer is able to hold the pulling force of the bow isometrically at release. I'm also a field archery coach and coach trainer. I'm an occasional skier and enjoy field archery when i get the time.

Which archery software