Abstract

Various parameters have been considered in weight lifters. A high degree of strength and of flexibility, but only moderate aerobic capacity and work output is possesssed by those studied. Stimulus to cardiovascular conditioningin competition was minimal, except during the competitive lifting. Catecholamine levels were raised by 200-300 when compared with resting levels but this is equalled by other sports. Enzyme and more significantly C.P.K. Raised C.P.K. levels in exercise are found:- (a) in untrained people, (b) in prolonged exercise, (C) in very intense short duration exercise. The rise appears tobe in inverse proportion to the aerobic capacity of the subject. Weight lifters have only moderate aerobic capacities. Considering these facts and the high C.P.K.levels found after competition it is reasonable to suggest that considerable tissue anoxia occurs in muscle during weight lifting and this is responsiblefor the inability of lifters to reproduce their performances on successive days. Because of the small size of the study and the lack of followup tests these findings warrant further investigation. Verf.-Referat