Marathon Training

Every runner has moments of doubt–and that's not always bad. Wondering if you're up to the challenge of a first marathon reflects a healthy investment in the outcome. And if you haven't trained properly, your concerns are valid. But other worries–especially those triggered by outside influences–can create a self-defeating sense of intimidation. These doubts go deeper and are rooted in negative emotions, says Windee Weiss, PhD, a sports psychologist who is an associate professor at the University of Northern Iowa School of Health, Physical Education and Leisure Services. "Realism accepts that a demand may be tough but doesn't place a judgment on it," she says. "Intimidation assumes you won't have the goods to meet the demand."

Failure-oriented stress can cause a host of problems. It can tighten muscles so that they fatigue faster, hamper coordination so you can't find your stride, distract you from your goals, and undermine mental toughness. Here's how to get past common sources of intimidation and run your best, without doubt.

Learn how to maximize your muscles and stay pain-free for life with the Athlete's Book of Home Remedies