The Purpose of the Study Was to find out effect of varied intensities of plyometric training on vo2 max and resting heart rate, random group design was employed. Randomly selected long distance runners (N=60) were divided into four groups consisting of 15 in each group. Experimental Group I underwent uphill treadmill walking and running exercises, experimental group II underwent down hill treadmill walking and running exercises and experimental group three underwent sprint running on treadmill, group four was control group which did not participated in any special training. The control group did not participate in any special exercises except of their routine. Pre test scores were obtained using standard tests on selected VO2 max, and cardio respiratory endurance before the experimental period and the post test scores were obtained immediately after the twelve weeks experimental period. The difference between the pre test and post test means were subjected to statistical treatment using ANCOVA, which was the effect of uphill, downhill and sprint running on treadmill. In all cases 0.05 level was fixed to test the hypothesis of the study.

vo2 max and cardio respiratory endurance