Even those whose work is largely muscular, unless it involves most of

the muscular system, may do well to exercise the unused
muscles--although Nature herself produces to some extent the necessary
compensation by what is known as the 'law of synergic movement,' by
which unused muscles profit by the exercise of those which are used
Even those whose work is largely muscular, unless it involves most of
the muscular system, may do well to exercise the unused
muscles--although Nature herself produces to some extent the necessary
compensation by what is known as the 'law of synergic movement,' by
which unused muscles profit by the exercise of those which are used.