2. Ski jumps
The wider you jump and the lower you squat, the harder you’ll work. Your goal is 3 sets and each set includes 30-second ski jumps with 15-second rest.
1. Place a rope or stick on the ground, and stand with your feet together.
2. Bend your knees slightly and jump from side to side.
3. Land with both feet on the ground and stop for one second to stabilize yourself.