100-200m event,if I understand you,the rest between every set is 4 min.We do this september,october,november-3 months,december here in Bulgaria is winter like Canada and stop to run in park and stop do hill work,but then we start do sled work!
100-200m event,if I understand you,the rest between every set is 4 min.We do this september,october,november-3 months,december here in Bulgaria is winter like Canada and stop to run in park and stop do hill work,but then we start do sled work!