This is a great article on knee pain and not being scared of the term osteoarthritis. The section on adaption is particularly good:
‘If you put an adequate amount of stress through a joint, and then give it an adequate amount of recovery, and you do this consistently – that joint will strengthen! It will adapt and be able to cope with the demands you are placing on it.’
http://www.kinetic-revolution.com/knee-osteoarthritis-runn…/…
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