He 'muscled his way' through the crowd. [=he moved ahead by pushing and forcing people to move out of the way]
an athlete practicing to develop 'muscle memory' [=the ability to repeat a bodily movement exactly]
To clean that floor you have to 'put some muscle into' it. [=you have to make a forceful effort]
(..) on a one month trial. Do you want the day to think about it? I bet you won't make it past two weeks. What? You can't forget a single bone or a single muscle. Everything has to move. We want to keep the skin and the joints healthy. In order to achieve this, (..)2011 The Intouchables