The line down your back is just the seperation between the muscles. Th, back workout
By A Mystery Man Writer
9 effective core exercises for men dealing with diastasis recti - The Manual
Exercises For Diastasis Recti/Best 10 Minute Workout To Fix Your Ab Separation
A one-month workout routine to strengthen your core and relieve back pain
The Anatomy of Your Back Muscles, Explained (and How to Train Them)
Best Lat Exercises For a V-Taper Back
10 Best Glute Exercises for Men [Build a Great Butt]
5 Lat Exercises for Explosive Back Development - Muscle & Fitness
7 Best Front Delt Exercises
Autumn Focus Exercise: Lower Back Strengthener - Koelbel Rendezvous
10 dangerous exercises that lead to injuries
7 Deep Core and Pelvic Floor Exercises to Start Doing Now
Diastasis Recti: What to Know About This Postpartum Problem
Rectus Abdominis - Physiopedia