Trouble is, bodies a really good at compensating for problems so you don't even realise you have them.
One of my legs is slightly shorter than the other which has lead to my back being really, really tense on one side my whole life and it was only a few years ago when it suddenly went ping that I found this out and did something about it.
(Bazongaloid, Wed 19 Feb 2014, 16:43, 1 reply, 12 years ago)

at least you found it
and you can watch out for it in your kid, i guess. it is annoying. it's the same with any kind of weights, left to itself your body will cheat and use the join instead of the muscle or whatever is easier. stupid bodies.
( rachelswipe with a fork, Wed 19 Feb 2014, 16:44, Reply)

Lift very heavy and then everything has to work in conjunction, no slackers when you go heavy.
Although, to go heavy you need excellent flexibility. People do end up training problems rather than making themselves fitter - i.e. dysfunction over function.
( d.r._and_quinch when will you be famous?, Wed 19 Feb 2014, 19:00, Reply)