Workout videos: Bodyweight cardio matrix

Source: Best Health Magazine, September 2010

Short on time? So is our Vichy Best Health Challenge winner Cora Coady. As a new mother, Cora has been struggling to lose the baby weight and kick-start her metabolism. Enter celebrity trainer Bruce Krahn, who designed an efficient total-body workout program to help Cora get back in shape. Here, Bruce demonstrates the moves her recommends to get your heart pumping in just 30 minutes.

To complete this bodyweight cardio matrix, do:

24 squats

12 lunges (each leg)

12 lunge jumps (each leg)

24 squat jumps

Time yourself and rest twice as long as it took you to perform the exercises; then repeat.