Exercise guide
Half Jumping Jack
- Beginner
- Compound
- Timed hold
- Lower legs
- Upper legs
The Half Jumping Jack is a low-impact variation that combines a partial arm raise with a squatting motion to build lower body endurance and core stability. It effectively targets the quadriceps and glutes while keeping the heart rate elevated with less vertical impact than a standard jumping jack.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand tall with your feet hip-width apart and arms resting at your sides.
- Engage your core and pull your shoulder blades slightly back and down.
- Maintain a slight bend in your knees and keep your gaze forward to ensure a neutral spine.
How to do it
- Jump your feet out wide while simultaneously lowering your hips into a shallow squat.
- As you jump out, raise your arms out to the sides until they are parallel with the floor at shoulder height.
- Exhale and jump your feet back together, returning to a standing position with arms back at your sides.
- Maintain a quick, fluid tempo, ensuring you land softly on the balls of your feet each time.
Form checklist
- Keep your chest lifted and avoid rounding your lower back during the squat.
- Ensure your knees stay aligned with your toes and do not cave inward as you land wide.
- Land softly to minimize impact on your ankles, knees, and hips.
- Stop your arms exactly at shoulder height to maintain tension and control.
Pro tips
- Focus on squeezing your glutes and inner thighs as you snap your feet back to the starting position.
- Maintain a constant 'athletic stance' with a slight bend in the knees even at the top of the movement to keep the muscles engaged.
Make it harder
- Sink into a deeper squat, bringing your thighs parallel to the floor on every outward jump.
- Increase the speed of the repetitions to turn the movement into a high-intensity cardiovascular interval.
Frequently asked
- What muscles does the half jumping jack work?
- The half jumping jack primarily targets the calves, glutes, and quadriceps, and also works the adductors and hamstrings as secondary muscles.
- What equipment do you need for the half jumping jack?
- The half jumping jack requires no equipment — just your body weight.
- Is the half jumping jack good for beginners?
- Yes. The half jumping jack is a beginner-friendly movement and a strong foundation to build on.
Related exercises
- 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
- 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
- 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
- Alternate Foot HopscotchIntermediate · calves, glutes, and quadriceps