Myth #1: Sit ups for lower back pain.
Although this concept has been disproved many times before, it keeps being recommended by many therapist and trainers. It is based on the assumption that all lower back pain is caused by weak abdominal muscles when in reality every back pain is different, and every back pain responds to different treatments. Different pain responds to different approaches like: stability exercises, nerve mobilization exercises, end-range stretching, strengthening of the trunk muscles, static and dynamic posture correction, gate correction, lifting techniques, and some may need a combination of all or some of them.