Field sports such as football, team handball, hockey, rugby union and rugby league, Australian & Gaelic Rules football are characterised by a typically stop-start nature, with varying movement speeds, multiple changes of direction and the execution of decisions and individual skills under conditions of game pressure and/or fatigue. The nature of the movements in these sports requires the utilisation, and therefore training, of all three energy systems (ATP-PC, Glycolitic/Lactic acid and Aerobic systems). Despite the often stop-start nature of these sports, which heralds an increase in anaerobic energy contributions5 , high-intensity aerobic power and conditioning can be critical for success in many field sports.5,6,7 Due to the high-intensity and less predictable nature of movement of field sports compared to steady state “aerobic” long-distance sports (eg. triathlon, distance running, cycling, swimming etc), the aerobic and anaerobic conditioning for these sports should differ considerably to the aerobic requirements of “steady state” long-distance sports. To address this, there now appears to be a growing trend towards utilising recent research and training trends to fully develop the high-intensity aerobic power of the field sport athletes.The purpose of the present study, 45  players were selected as samples from in and around schools  Pollachi  Corporation in the year of 2020 - 2021. They were divided into three groups. Each group consists of 15 subjects. Group -I High intensity Training Group (STG), Group - II Low intensity Training Group (CTG) and Group III control group (CG). The ages of subjects were ranged from 15-17. The present study  are significant source to maintain with its related physical and physiological such as Speed    and Vo₂max.  The statistical tools used are the analysis of co-variance was applied. To determine whether the training programmes produced significantly different improvements in selected variables after 8 weeks of training the analysis of co-variance was used.  The result of this study indicates that there is insignificant difference in speed and Vo₂max among players of handball l game. The study stated that there would be significant difference among players of handball   game. From the result of this study it is observed that there is significant improvement in speed and Vo₂max

Keyword:  High and Low intensity aerobic   training speed and Vo₂max