Star Jump
The Star Jump is a beginner compound movement that activates 5 muscle groups simultaneously. It primarily targets the Quadriceps, making it one of the more efficient exercises in RepStack's 873-exercise database.
Starting position
Ending position
Muscles Worked
The quadriceps handles the primary load during this movement. The calves and glutes and hamstrings and shoulders assist as stabilizers throughout the range of motion.
How to Star Jump
- 1
Begin in a relaxed stance with your feet shoulder width apart and hold your arms close to the body.
- 2
To initiate the move, squat down halfway and explode back up as high as possible. Fully extend your entire body, spreading your legs and arms away from the body.
- 3
As you land, bring your limbs back in and absorb your impact through the legs.
Common Mistakes
- • Brace your core before initiating the movement — maintain tension throughout the entire range of motion.
- • Control the eccentric (lowering) phase for at least 2 seconds to maximize muscle fiber recruitment.
- • If reps become too easy, slow the tempo or add a pause at the hardest point rather than rushing through more reps.
- • Avoid locking out aggressively at the top — stop just short of full extension to keep tension on the muscle.
Similar Exercises
Frequently Asked Questions
What muscles does the Star Jump work?
The Star Jump primarily works the Quadriceps. Secondary muscles include the Calves, Glutes, Hamstrings, Shoulders, which assist during the movement.
Is the Star Jump good for beginners?
Yes, the Star Jump is suitable for beginners. Start with light weight to master the 3-step form before adding load.
What equipment do I need for the Star Jump?
You need no equipment — just your bodyweight to perform the Star Jump. This makes it ideal for home workouts.
Track Your Progress
RepStack logs every set, calculates your e1RM, and coaches progressive overload — automatically.