Comparison of serratus anterior and upper trapezius muscles activity in the arm abduction between three shooting fields
Poster Presentation XML
Authors
1Guilan univercity
2Department of physical education and sport sciences, university of guilan, rasht, iran
3guilan university
Abstract
Introduction: Considering the position that shooters in different fields take during shooting, it seem that trapezius and serratus anterior muscles are commonly involved in the shooting perform and each has a relative role in each field. It can be expected that the activities of these muscles involved in shooting action to be different among shooting different fields. Thus, the purpose of this study was to compare the serratus anterior and upper trapezius muscles activities in the arm abduction between three shooting fields including archery, pistol and air rifle.
Methodology: 24 shooters (8 archer, 8 pistol shooters and 8 air rifle shooters) 20-40 years old with more than 3 years of professional training history were participated in the study. The subjects were performed arm abduction to the 60 and 90 degrees with dominant hand. The electrical activity of upper trapezius and serratus anterior muscles were recorded using surface electromyography. ANOVA test was used for comparison of difference among groups.
Results: The activity of serratus anterior muscle in the 60 degree abduction in the archery group, was significantly more than the pistol (P=0.016) and the air rifle (P=0.03) groups, and in the 90 degree abduction in the archery group, was significantly more than the air rifle (P=0.04) group. But, it is not found the significant difference in the upper trapezius muscle activity among three groups (P>0.05).
Discussion: The higher serratus anterior activity in the archery field, the greater hand angle in the shoulder joint and as well as the greater scapular upward rotation than the pistols and air rifles fields. But, it seem the upper trapezius to play a role approximately similar in the stability of the scapula in all three fields.
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