Klinische Sportmedizin

Abstract

Background: Intensive muscular performance depends on the anaerobic capacity and performance of the alactic and lactic energy metabolism. Until now, short running and bicycle-ergometer tests have been used to measure anaerobic performance. Local muscle performance in isokinetic force tests correlates to the sprint performance on a bicycle-ergometer. Aim: Aim of the study was to compare parameters of the anaerobic energy metabolism between an isokinetic force test and an ergometer sprint test. 14 subjects completed a unilateral isokinetic force test (10 REP/180s-1) and a bicycle-ergometer sprint test (15s/130rpm). Results: Maximum lactate (Lamax), time to maximum lactate (tLamax), alactic time (talac), maximum power (Pmax) and the maximum rate of lactate production (VLamax) differed significantly between the two tests (p<0.05). The relative maximum rate of lactate production (relVLamax) between these tests showed comparable values (p>0.05). The VLamax and relVLamax showed a correlation of r=0.42 respectively r=0.43 (p>0.05) with an SEE of 0.22mmol*l-1*s-1*kg-1M between the two tests. Conclusion: It should be noted that a prediction of the individual anaerobic performance with the VLamax by means of the ergometer sprint test to the local isokinetic force test is impossible. Valid statements about the local anaerobic performance of the muscles should be determined by local loads.KEY WORDS: Lactate Formation Rate, Strength Loads, Anaerobic Performance