Powerful back rehab routine enhances the overall strength of the spine through core muscle development. Led by Trish Scott. DVD format. 30 Minutes. 30-Day unconditional warranty. Recover faster from injury and improve your back strength and health with this FitBALL Back to Functional Movement DVD, designed for spinal rehabilitation. The DVD features exercises designed to strengthen the back through core muscle development while reducing pain and tension. It is led by Trish Scott and features 30 minutes of FitBALL exercises.