High Definition Workout

FREQUENCY: Do this workout two days a week for four weeks, resting at least two to three days between exercise sessions. Perform the workout as a circuit, doing one set each of exercises 1-6 before resting. (That's one circuit.) Repeat for a total of four circuits.

REPETITIONS AND WEIGHTS: Do three repetitions of each exercise, using a weight that you can lift at most five times. (That is, you'll do three repetitions using a weight equal to your five-repetition maximum for each exercise.)

REST PERIODS: In week 1, you'll rest for 60 seconds after each circuit, 50 seconds in week 2, and 40 seconds in weeks 3 and 4.