
jack burpee
Cardiovascular systemBody weight

Step 1: Stand with your feet shoulder-width apart and your arms by your sides.
Step 2: Bend your knees slightly and jump up explosively.
Step 3: As you jump, spread your legs and extend your arms out to the sides, forming a star shape with your body.
Step 4: Land softly on the balls of your feet with your knees slightly bent.
Step 5: Repeat for the desired number of repetitions.