Movement Practice WOD
exercise wod
AMRAP 12
8 controlled reps
10 bodyweight reps
200m easy run or 60 sec cardio
Cardio & Jump Rope
Jumping Jacks — Simple Warm-Up Guide
BB
By Borja Bes — CrossFit Athlete & Hyrox Finisher
Jumping jacks are a simple whole-body drill for increasing body temperature and coordinating the arms with light jumping. Keep the contacts quiet and use a range you can repeat smoothly. Use it to raise temperature, rehearse clean positions, and prepare the joints without creating fatigue before the main workout.
Quick answer
Jumping Jacks is best used when the workout goal matches its main demand: cardio & jump rope capacity, clean mechanics, and scalable intensity.
Muscles Worked
CalvesShouldersGlutesCardiovascular system
Equipment
None
Best For, Avoid If, and Scaling
| Best for | Cardio & Jump Rope WODs, skill practice, and athletes who can keep jumping jacks mechanics consistent under fatigue. |
|---|---|
| Avoid if | Pain changes your movement pattern, fatigue makes reps sloppy, or the workout asks for a standard you cannot repeat safely. |
| Scaling | Step one foot out at a time instead of jumping. |
How to Do the Jumping Jacks
1
Stand with feet together and arms by the sides.
2
Jump the feet wider as the arms travel overhead.
3
Land softly with knees tracking over the toes.
4
Jump back to the start and repeat at a steady rhythm.
Common Mistakes
✕
Landing with stiff knees and excessive noise.
✕
Forcing the arms overhead by arching the back.
Coaching Tips
✓
Stay light through the balls of the feet.
✓
Choose a pace that warms you without breathlessness.
Scaling Options
Easier / Beginner
Step one foot out at a time instead of jumping.
Harder / Advanced
Increase cadence or use seal jacks for variety.
Related WODs
Use Jumping Jacks in a Real Workout
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Technique + Conditioning
scaled workout
4 rounds for quality
10 technique reps
30 sec core hold
12 low-skill conditioning reps
Frequently Asked Questions
How should Jumping Jacks feel?
You should feel warmer and move more freely, but not tired. Keep the range controlled and reduce it if you feel pinching or sharp pain.
Build It Into a Workout
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