
jack burpee
Cardiovascular systemBody weight

Step 1: Stand with your feet shoulder-width apart.
Step 2: Bend your knees and lower your body into a squat position.
Step 3: Jump explosively, extending your hips and knees while swinging your arms for momentum.
Step 4: Land softly on the balls of your feet and immediately go into the next repetition.
Step 5: Repeat for the desired number of repetitions.