

Jumping Jack
Jumping Jack
CoreBodyweightBeginnerCrossFit
CalvesSide deltsQuadsAbs
Primary muscle
Cardio (legs + shoulders)
Secondary
Calves, core
How to do it
Feet together, arms at your sides. Jump the feet apart while raising the arms overhead, then jump back. Land softly on the balls of your feet.
Common mistake
Landing hard on the heels; locking the knees; half arm raises.
Alternative
Step jacks without jumping (knee-friendly) · jump rope
Your results
No logs yet. Suggested start: bodyweight, increment 5 reps.