Some of them are hand tools that work with muscle power, like the saw in the picture.

It was thin enough to see a strong light through but too thick to be broken by muscle power alone.

Another gauge of muscle power is an 1895 iron strong man.

The force of life was provided by muscle power, animal or human.

They're stuck with their own muscle power, and that's a dead end.

All to drive a shell which brought her muscle power up to the level of others.

It takes a lot of hard work and muscle power.

What counts is not raw muscle power, or energy, but information.

"I used to provide them with muscle power," he explained.

Now he was even too lazy to open the door by muscle power.