
jack burpee
Cardiovascular systemBody weight

Step 1: Stand with your feet shoulder-width apart.
Step 2: Bend your knees slightly and keep your back straight.
Step 3: Jump to the right, landing on your right foot while swinging your left leg behind your right leg.
Step 4: Immediately jump to the left, landing on your left foot while swinging your right leg behind your left leg.
Step 5: Continue alternating jumps from side to side, mimicking a skiing motion.
Step 6: Repeat for the desired number of repetitions.