How to Strengthen the Lower Back by Lifting Weights
Livestrong
2015-12-03
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How to Strengthen the Lower Back by Lifting Weights. Part of the series: LS - Strengthening & Stretching. The erector spinae group are the muscles of the low back. Strengthen the lower back by lifting weights with help from a fitness and wellness professional with over 12 years of experience in this free video clip.
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