Fatigue: Impact of Muscular Co-Ordination among Rifle Shooters

ABSTRACT

It has been well reported that fatigue is an important factor which hinders performance. The resultant effect of it is loss ofco-ordination and efficiency. The main aim of this investigation was to find out the effect of fatigue on muscular coordination among rifle shooters. Ten rifle shooters aged between 22-28 years were selected as subjects. The index ofmuscular co-ordination was tested with three series. A steadiness tester was used with the diameters of 0.5, 0.31, 0.25, 0.18,0.15, 0.12, 0.10, 0.09, 0.07 inches and stylus of 0.062. Grip dynamometer was utilized for measuring local fatigue. Theresults indicated that 50% of rifle shooters were adversely affected by local fatigue of the arm, 80% of the subjects statedalteration in their muscular co-ordination after overall fatigue was induced. It was concluded that performance wassubstantially reduced when general fatigue was induced compared to local fatigue.