Try one of the 10 best core exercises for back pain, such as planks and hip raises to get instant relief. (healthcare-online.org)
I expect this season to be no different and I'm sure wenger will bring in further quality still, now that he knows how good the core of his team really is. (justarsenal.com)
Not only because they're kinda fun, but they're also a pretty good core workout too. (fitbodyhq.com)