Cross-training misconceptions: Before Elle Macy became an apprentice with Pacific Northwest Ballet, she was apprehensive about cross-training. "I was warned that it might bulk you, or not to do certain activities because they could potentially injure you." But a stress fracture in her foot changed her perspective. Unable to bear much weight, Macy reluctantly tried stationary biking at her physical therapist's suggestion. "What I learned is that you're not going to get injured from being on an elliptical for 20 minutes or by taking a Pilates class," says Macy. Today, it's not uncommon to find the soloist training on the elliptical, doing ankle stability exercises, using the Pilates reformer or taking a hot yoga class.