More isn't always better. In fact, we're learning that when it comes to exercise, short may be the way go — but only if the intensity is turned up a notch. One way to accomplish this goal is to maximize your time and efforts by rolling strength and cardio into one move. Each of these exercises works the entire body, leaves your heart racing, and doesn't require a single piece of equipment. See how many reps you can do of each in one minute, then start including these in your lunch-break routine or earn a gold star by busting them out after your next run!