The core muscles are a group of four muscles that are layered on top of one another. These muscles work together to help us perform all of our everyday movements.
What Are Core Muscles? The Role of Each Core Muscle and Best Exercises
How Yoga Practice Strengthens Your Core Muscles—Without Crunches - YogaUOnline
What Are My Core Muscles, Anyways? – Motherhood Link
The Best Core Workout For Thicker, Stronger Abs (YOU'RE DOING IT WRONG!)
Boxing Training - Core Strength Training
Core Exercises - Where do I start? — Willowbrook Chiropractic
How to Strengthen Abs Without Working Out, Trainer Advice
What Are The Core Muscles Of The Body? - Dr. Tara Salay
What is Core Exercises to Train Muscles at DPT Scottsdale, Arizona
Core stability: is it your body's real achilles heel? — Sydney Spine & Sports Clinic
How to Find and Actually Activate your Core Muscles
What is Core Stability and Core Strength - L3 Anatomy and Physiology
What you don't know about your core — MATRIX
Why Core Muscles Are So Important - London College of Osteopathy
Four main functions of your core muscles