N Nicholas New member Mar 16, 2011 #1 When i train my caridovascular system, is it more effective to sprint,walk,sprint, walk ect or is it more effective to just sustain running as long as possible. Which is better in improving running endurance?
When i train my caridovascular system, is it more effective to sprint,walk,sprint, walk ect or is it more effective to just sustain running as long as possible. Which is better in improving running endurance?
