The approaches taken by these therapies can vary, though there are sometimes common techniques employed. A key approach in chiropractic back pain treatment is to use spinal manipulation, a technique sometimes used by osteopaths. Other therapies (such as Alexander Technique and Feldenkrais) aim to undo habits of body use that lead to poor posture and back pain. Other therapies can improve core muscle strength (Pilates for example) or provide release and undoing of muscular tension (massage therapies for example).