The Penn State women’s swimming team has discovered one of the human foot’s uncommon, yet most effective uses—”mashing.”

The term applies to a unique form of a deep tissue massage that head coach John Hargis has his swimmers doing during breaks in practice.

Mashing involves having one person lay facedown on the ground, while a teammate stands upright on top of her with her feet resting on the back of the legs of the teammate laying down.

The standing teammate digs her heels into the upper leg of the teammate laying down, focusing particularly on the area above the knee.

The [Penn State] Daily Collegian, University Park, Pennsylvania, Jan. 27, 2010