170. BACK EXTENSIONS Most muscles work in pairs and the abdominals are no exception. In this case the opposing muscles are the spinal erector (lower back) muscles, and you should train them regularly. One of the simplest exercises to work the lower back is to lie face down on the floor and gently raise the torso upwards. Don't excessively arch (hyperextend) the lower back. You must strike a balance between working the lower back muscles and placing too much stress on the lower back ligaments.
Thursday, January 23, 2014
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