Functional Fitness · Conditioning · Calisthenics
Double-Under
The double-under is a jump-rope skill where the rope passes beneath your feet twice per jump. It trains conditioning, coordination, and lower-leg endurance.
- Intermediate
- Moderate injury risk
- Rest 45 sec
How to do it
- Hold the handles beside your hips with the rope resting behind your heels.
- Swing the rope forward over your head.
- Jump straight up from both feet as the rope approaches your toes.
- Turn the rope beneath your feet twice using quick wrist circles while airborne.
- Land on both forefeet with a slight bend in your knees.
Form cues
- Keep your elbows close to your ribs.
- Keep your grip light.
- Stay tall through your torso.
- Keep breathing between jumps.
Common mistakes
- Tucking your knees or kicking backwardCreate clearance with a slightly higher vertical jump instead of pulling your feet toward your body.
- Making large arm circlesKeep your upper arms quiet so your wrists control the rope speed.
- Rushing the next jumpLet each landing establish the rhythm instead of adding extra hops between double-unders.
Safety
Repeated jumping can overload your calves, Achilles tendons, and feet when volume increases too quickly. Catching the rope under fatigue can cause a trip or ankle twist.
- Use a level, nonslip surface with enough overhead and side clearance for the rope.
- Check the rope for damage and adjust its length before practicing.
- Warm up with easy single-unders before attempting double-unders.
- End the set when repeated catches or heavy landings disrupt your control.
If you have current foot, ankle, Achilles tendon, or knee pain, choose a lower-impact activity or get advice from a physiotherapist before practicing.
Muscles worked
Primary muscles
Secondary muscles
Equipment
- Jump Rope
Sets and reps
- Sets
- 3–5
- Target
- 5–10 reps
- Rest
- 45 sec
Treat these as short skill-practice sets rather than an all-out conditioning effort.