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It's happened a couple of times in training when I hyper-extend my back. Some facet joints send all the muscles in my lower back and lumbar-spine into spasm.
Brian O'Driscoll
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It's happened a couple of times in training when I hyper-extend my back. Some facet joints send all the muscles in my lower back and lumbar-spine into spasm.
Brian O'Driscoll
(0) Like
(0) Favourite