Abstract

Background: The cardiac morphology and functioning undergoes a variety of changes on physical training, and it depends on the type of training the person undergoes. Endurance training and speed training are the two major classifications in it, and it is essential to know which type overruns the other in increasing the cardiac functioning. Aims and
Objective: To compare the cardiac functioning of three groups of human participants’ viz., endurance athletes, speed athletes, and untrained individuals, by ± measuringtheirVO maxandQRSwaveamplitude.MaterialsandMethods:Fifteenenduranceathletes(meanage SD:20.27 2 ± ± ± ± ± 1.58years),15speedathletes(meanage SD: 20.15 1.85years),and15controlsubjects(meanage SD:19.33 0.82 years) were recruited into the study. VO max was obtained from three tests (beep test, Uth–Sorensen–Overgaard–Pedersen 2 method, and Cooper variation method), and mean QRS wave amplitude was measured using Minnesota code of classification. Statistical analysis was done using ANOVA test. Result: The VO max (V) and QRS wave amplitude (R) of endurance (V: Po 2 0.001;R:Po0.001)andspeedathletes(V:beeptest—Po0.05,others—Po0.001;R:Po0.05)weresignificantlyhigherthan that of the untrained individuals. When compared between the two athletic groups, endurance athletes showed significantly higher values than the speed athletes in both the parameters (V: Po 0.001; R: Po 0.001). Conclusion: Both endurance and speed training enhance the cardiac functioning when compared with the untrained individuals significantly. But, endurance training shows an edge over speed training in increasing the effectiveness of working of heart.