Get our programs here: Are Jefferson Curls dangerous? Is lumbar flexion dangerous? These are two common questions that I answer in the video. Leave any questions in the comments! Jefferson Curls (0:00) Should You Do Them? (1:46) Is Lumbar Flexion Bad? (2:45) ----- Research: ----- Disclaimer: The information presented is not intended as medical advice or to be a substitute for medical counseling but intended for entertainment purposes only. If you are experiencing pain, please seek the appropriate healthcare professional.
Hide player controls
Hide resume playing