When you move your body against the force of gravity and do exercises that strengthen muscles, you are producing forces that push and pull on your bones.
(you; move; your body; against the force of gravity) (forces; pull; on your bones) (you; do; exercises) (you; are producing; forces that push and pull on your bones; T:When you move your body against the force of gravity and do exercises) (forces; push; )
you forces you you forces
move pull do are producing push
your body against the force of gravity
on your bones
exercises
forces that push and pull on your bones T:When you move your body against the force of gravity and do exercises