ABSTRACT
Lots of archery researches have been conducted from different approaches in order to find the key point for improving the performance of this fine and highly skilled sport. The most important focus will be the stability of aiming style, so how to use systematic methods to evaluate it falls in the direction. A biomechanical study on the final push-pull archery has been conducted by Leroyer et al. (1993). The purpose of their study is to analyze archery performance among eight archers of different abilities by means of displacement pull-hand measurements during the final push-pull of the shoot. The archers showed an irregular displacement negatively related to their technical levels. Displacement signal analysis showed high power levels in both 0-5 Hz and 8-12 Hz ranges. The latter peak corresponds to electromyographic tremor observed during a prolonged push-pull effort. The results are discussed in relation to some potentially helpful training procedures such as biofeedback and strength conditioning. Landers et al. (1994) have examined novice archers to determine whether (a) hemispheric asymmetry and heart rate deceleration occur as a result of learning, and (b) these heart rates and electroencephalograph (EEG) patterns are related to archery performance. The electromyography (EMG) technology which measures the
activation patterns in forearm muscles related to contraction and relaxation strategy during archery shooting, has been applied by Ertan et al., 2003 to analyze for archers with different levels of expertise; elite, beginner, and non-archers, respectively. They found that elite archers’ release started about 100 ms after the fall of the clicker, whereas for beginners and non-archers, their release started after about 200 and 300 ms, respectively.
