I led the way out the door, running at full speed.

Running at top speed is probably not a good idea either.

She was running at high speed and came down on her head.

And she pulled away from him, running at full speed.

They ran head on into one another at full speed.

In such a situation he should have stopped and yet continued running at great speed.

Then she turned and headed down the street, running at full speed.

The two girls took off, running at full speed down the block.

The way he runs at full speed makes it easy for us.

She set off running at top speed down to the ship.