Yes, it’s okay to keep walking with plantar fasciitis. “I recommend walking, including uphill outside (hiking), using a treadmill incline, and a stationary bike. Incline walking stretches the plantar fascia, and in my experience and option, as long as there’s no pain or even a little pain that doesn’t get worse, these activities can benefit the condition,” Dr. Brad says. He adds that you should avoid these activities, including stretching, if there’s notable or chronic pain.