Standing jacks (low impact)

How to do it

1. Set upStand tall, feet together.
2. MoveStep one foot out to the side as both arms sweep overhead, step it back as they come down, then do the other side. Keep a quick rhythm.
3. Watch forLetting it turn into a slow walk. Move your arms fast to keep your heart rate up.

Easier or harder

Easier

Keep your arms to shoulder height.

Harder

Jumping jacks.

What it works

Muscles

Cardio, Quads, Upper body

Position

Standing

Intensity

Moderate Medium

Impact

No jumping

Swap it for

• Step-back burpees
• Half burpee + squat hold
• Dynamic heel taps
• Butt kicks (no jump)
• Punch up jacks
• Jacks + side punch

In these workouts

• 10-Minute HIIT Workout
• 15-Minute HIIT Workout
• 20-Minute HIIT Workout
• 30-Minute HIIT Workout
• Beginner HIIT Workout (No Equipment)
• No-Jumping HIIT Workout
• Quiet Apartment HIIT Workout
• 15-Minute Core HIIT Workout
• Fat-Burning HIIT Workout