logoFitAI
ExercisesStart Free

Hollow Rock

Expert Advice

Keep your lower back pressed into the floor throughout the movement to protect your spine and increase the challenge to your core muscles.

How-to-do Steps

  1. Lie on your back with your arms extended overhead and legs straight out.
  2. Engage your abs and lift your arms and legs off the floor, creating a slight 'U' shape with your body.
  3. Rock forward and backward while maintaining the hollow body position.
  4. Continue rocking for the desired number of repetitions or time duration.

Track Hollow Rock in FitAI

Log your sets, reps, and weights automatically. Get AI-powered progressive overload recommendations and form feedback — personalized to your training history.

Start Free

Muscles Worked

Hollow Rock primarily targets the Abs, with Strength mechanics using Body Weight. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.

Primary
Abs
Abs100%
Equipment
Body Weight
Body Weight
Exercise Type
Strength
100%Abs

Sets & Reps Guidance

Beginner3 x 12-15
Intermediate3 x 10-12
Advanced4 x 8-10

Frequently Asked Questions

What muscles does Hollow Rock work?
Hollow Rock primarily targets the Abs. It is classified as a Strength exercise performed with Body Weight.
How many sets and reps should I do for Hollow Rock?
For beginners, start with 3 sets of 12-15. Intermediate lifters can do 3 sets of 10-12. Advanced athletes can push to 4 sets of 8-10. Adjust based on your goals and recovery capacity.
Is Hollow Rock suitable for beginners?
Yes, Hollow Rock is rated as a beginner-friendly exercise, making it an excellent starting point. Focus on mastering proper form before increasing intensity or load.