It's a matter of how your foot strikes the ground.

It seemed to leap higher each time its feet struck the floor.

His feet struck the ground so hard I felt sorry for the black earth.

She took another step forward, then her foot struck something.

Her feet struck and instantly she was running with him.

My feet struck the path leading to the dead lake.

The body his foot had struck was that of an old man in a blue suit.

In a marathon, the feet strike the ground more than 20,000 times.

I moved away from the boat and my foot struck something on the floor.

The whole house shook as each foot struck the ground.