Start standing with your feet hip-width apart, arms by your sides, and core pulled in toward your spine.
Jump both feet out to the sides while simultaneously swinging your arms out to the sides and overhead. Land softly with your feet wider than hip-width apart, and make sure to keep your core braced throughout the exercise.
Jump your feet back to hip-width while swinging your arms back down to your sides, landing softly as you come back to the starting position.
This counts as one rep. Continue for 30 seconds while maintaining proper form.