Exercise guide
Half To Full Jumping Jack
- Beginner
- Compound
- Timed hold
- Chest
- Lower arms
- Lower legs
- Shoulders
- Upper arms
- Upper legs
- Waist
This dynamic variation alternates between a partial and full range of motion, incorporating a squat to maximize lower body power and cardiovascular endurance. It effectively targets the quads and glutes while improving shoulder mobility and coordination.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand with your feet together and arms resting at your sides.
- Engage your core and keep your gaze forward with a proud chest.
- Soften your knees to prepare for the explosive movement.
How to do it
- Jump your feet out wide into a squat while raising your arms only to shoulder height, then jump back to the start.
- Immediately jump out again into a deeper squat, this time swinging your arms fully overhead until your hands nearly touch.
- Exhale forcefully on every outward jump and inhale as you return to the center.
- Maintain a rhythmic tempo, alternating between the half-arm and full-arm squat jacks.
Form checklist
- Land softly on the mid-foot to absorb impact.
- Ensure knees track over your toes and do not cave inward during the squat.
- Keep your chest up and avoid leaning too far forward at the waist.
- Move your arms with tension and control rather than using pure momentum.
Pro tips
- Squeeze your shoulder blades together during the half-jack to better engage the posterior deltoids and upper back.
- Focus on a rapid transition between the half and full reps to maximize the plyometric effect on your calves and quads.
Make it harder
- Add a pause at the bottom of the squat on the full-jack rep to increase time under tension for the legs.
- Perform the movement while holding light dumbbells to increase the resistance on the deltoids and pectorals.
Frequently asked
- What muscles does the half to full jumping jack work?
- The half to full jumping jack primarily targets the calves, glutes, and quadriceps, and also works the abs, obliques, and serratus anterior as secondary muscles.
- What equipment do you need for the half to full jumping jack?
- The half to full jumping jack requires no equipment — just your body weight.
- Is the half to full jumping jack good for beginners?
- Yes. The half to full jumping jack is a beginner-friendly movement and a strong foundation to build on.
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- Burpee Over The DumbbellIntermediate · calves, glutes, hamstrings, and quadriceps
- Burpee ShuffleIntermediate · calves, glutes, hamstrings, and quadriceps
- Burpee Single Leg JumpIntermediate · calves, glutes, hamstrings, and quadriceps