Thruster sprints Workout

A) 4min AMRAP
21 Thrusters 42,5/30kg
remaining time
rowing for calories

B) 4min AMRAP
15 Thrusters 42,5/30kg
remaining time
rowing for calories

C) 4min AMRAP
9 Thrusters 42,5/30kg
remaining time
rowing for calories

Result is number of calories.