Crunch HIIT Workout – Core HIIT Series (Crunch & Twist Part 1)

When most people think of ab training, they think of crunches — and for good reason. Done correctly, crunch variations are still one of the best ways to build core strength and definition. In this crunch HIIT workout, you’ll combine three crunch-based moves into a fast-paced 10-minute circuit that hits your abs from multiple angles.

The Workout

Format:

• 30 seconds each move

• 15 seconds rest between moves

• 3 rounds total

• Rest 1 minute between rounds
  

Moves:

Crunch

Reverse Crunch

Bicycle Crunch

Benefits of This Crunch HIIT Workout

• Crunch: Targets the upper abs and helps build that core “burn.”

• Reverse Crunch: Focuses on the lower abs, helping flatten and strengthen below the belly button.

• Bicycle Crunch: Combines rotation with crunching, making it one of the best total ab activators.

Why Crunches Still Work

Crunches sometimes get a bad reputation, but when done properly they:

• Build direct ab strength and definition

• Improve core endurance

• Teach proper spinal flexion under control

Try It Now

Follow the videos below and hit this crunch HIIT workout for three rounds. Just 10 minutes and you’ll feel the burn through every inch of your abs.

Tip: Keep your lower back flat to the floor during crunches to avoid strain.

Want to take your Core Training to the next Level? Check out my 12 Week Core Progression Programme HERE