Jumping jacks

How to do it

1. Set upStand with your feet together and your arms by your sides.
2. MoveJump your feet out wider than your shoulders as your arms swing overhead, then jump back in as they come down. Stay light on the balls of your feet.
3. Watch forLanding flat-footed and heavy. Soft, quiet landings are easier on your knees and your neighbours.

Easier or harder

Easier

Standing jacks (low impact): step out instead of jumping.

Harder

Seal squat jacks: add a squat.

What it works

Muscles

Cardio, Quads, Upper body

Position

Standing

Intensity

High effort Hard

Impact

Jumping

Swap it for

• Seal jacks
• Seal squat jacks
• Power jacks
• Predator squat jacks
• Step jacks
• Bodyweight thrusters

In these workouts

• 5-Minute HIIT Workout
• 20-Minute HIIT Workout
• Fat-Burning HIIT Workout