Plank jacks

How to do it

1. Set upHigh plank, feet together.
2. MoveJump both feet out wide and back together, like a jumping jack with your legs, while your hands and hips stay where they are.
3. Watch forHips bouncing up with every jump. Keep your upper body still.

Easier or harder

Easier

Plank toe taps: step one foot out at a time.

Harder

Plank jack + shoulder taps.

What it works

Muscles

Cardio, Core, Upper body

Position

Plank / all fours

Intensity

High effort Hard

Impact

Jumping

Swap it for

• Plank jack + shoulder taps
• Plank jacks (no jump)
• Mountain climbers
• Diagonal mountain climbers
• Low plank mountain climbers
• Plank leg raise to climber

In these workouts

• Fat-Burning HIIT Workout