Star Jump

Muscles worked

Main muscles
- Rectus Femoris
Also working
- Anterior Deltoid
- Biceps Femoris (Long Head)
- Gastrocnemius (Lateral)
- Gluteus Maximus
What it is
This is an explosive bodyweight exercise that builds power and coordination. You start in a half squat, then jump explosively upward and outward before absorbing your landing. This movement primarily targets your quadriceps, engaging your calves, glutes, hamstrings, and shoulders.
Technique tips
- Focus on a controlled half squat before exploding upward.
- Extend your body fully at the peak of the jump, reaching wide.
- Land softly on the balls of your feet, rolling through to absorb impact.
- Engage your core and use your arms to aid your powerful ascent.
- Reset quickly for the next repetition, maintaining fluid motion.
How to track your progress
Log reps, and add the extra load if you wear a belt or a vest. Straddly counts your bodyweight in the estimated max, so added weight and extra reps both show up as progress, and new records are flagged during the session.