While you can carve a tantalizingly toned body in less than a half hour, we’re here to tell you what you already know: To reap the rewards—increased calorie burn, strength, power, blissful endorphin high—truncated workouts must be insanely intense. So we asked a team of Equinox trainers and group fitness instructors what they would do if they were given just 20 minutes to have at it. Here is the latest in the series:
The Pro: Meghan Hayden, a Tier 3 trainer at Equinox Wall Street