Muscles in the Back and Core Strengthening - JOI & JOI Rehab

There are many muscles in the back, each of which help contribute to movement throughout your body, including the upper and lower body. 

Core Stability - E3 Rehab

Best Core Strengthening Exercises for Seniors

Core exercises: Why you should strengthen your core muscles - Mayo Clinic

Muscles in the Back and Core Strengthening - JOI & JOI Rehab

Back Pain Core & Back Strengthening Exercises - Ask Doctor Jo

Latissimus Dorsi Muscles

Exercises to improve your core strength - Mayo Clinic

The Muscles in the Shoulder - JOI Rehab

Join Me on a CORE REHAB PROGRAM!!! - Kristin McGee

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5 Reasons To Strengthen Your Core

Is It Bad to Crack Your Back? We Asked Doctors and Chiropractors

Pain in the back: Preventing and treating spinal arthritis - Mayo

Is my kidney causing my back pain? - Harvard Health

How to Sleep On Your Back Properly? - Updated Info - AanyaLinen

10 core exercises that are better for your back (and body) than crunches