|This roller was $19 on Amazon.|
The therapist told me to lie flat on the ground and place the roller under the injured area. I rolled the leg on top of the hard foam, and it hurt---much like a deep-tissue massage hurts. I stopped after 30 seconds, and the leg tingled.
The foam roller was a revelation. Not only do I use it for the leg, but it also helps with balance exercises and relieves lower back pain. Just thinking about this late-in-life discovery gives me a thrill up my leg.