Speed Sack Races Using resisted sprinting to help our athletes emphasize being aggressive when attacking the ground throughout their accelerations. Then switching to unresisted so they are able to immediately implement what they practiced in the speed sacks. Including the race portion to help drive intent behind every rep. #Sprint #Speed #Accel #Acceleration #ResistedSprint #ResistedSpeed #ResistedAccel #SpeedSack #AthleteDevelopment