The purpose of the current study was to compare the repeatability of electromyographic linear envelopes (LE) of archery groups. Surface electromyography (EMG) signals of musculus flexor digitorum superficialis (MFDS) and extensor digitorum (MED) of 23 participants (seven skilled, six beginner archers and ten non-archers) were recorded during archery shooting. Two-second periods (clicker falls at first second) of 12 shots EMG data were recorded, full-wave rectified and filtered (60 ms moving-average filter) for each participants drawing arm. Repeatability was investigated by using a statistical criterion, variance ratio (VR). Archers performances were evaluated in terms of FITA scores. The results showed that FITA scores were significantly correlated to the VRs of MFDS and MED. EMG LEs were more repeatable among archers than non-archers. Therefore, we inferred that VRs of MFDS and MED might be important variables for (a) assessing shooting techniques, (b) evaluation of archers progress, and (c) selection of talented archers.
© Copyright 2006 Human Movement Science. Elsevier. Published by Elsevier. All rights reserved.
|Subjects:||biomechanics archery EMG competition selection technique muscle investigation method|
|Published in:||Human Movement Science|