Zumba! To Help Lose Weight.
Latin rhythms pulse fromPittsburgh’s Club One aerobics studio, where Maria McCalister leads a Zumba class packed with the glistening bodies of nearly 50 people seeking to swivel, pivot, and shake their way to fitness. McCalister coaches her students to feel the music, be it salsa, meringue, or flamenco. “I don’t talk much,” she says. “I let…