This can also be useful for habit formation. For example, in the book "One Small Step," the author tells the story of a client he told to stand on her treadmil

This can also be useful for habit formation. For example, in the book "One Small Step," the author tells the story of a client he told to stand on her treadmill every day. She was not to even turn it on. Only to stand on it. After a week of that, then she could turn it on. Bit by bit, she built the habit.