This Trainer's 4-Week Workout Plan Will Get You in the Best Shape of Your Life

Warmup

Do a set of each move below, but at a lower intensity.

Workout: Core

You'll spend one day each week on your abdominal muscles. This quick workout takes less than 15 minutes, so you can get on with your weekend.

• Side elbow plank: Hold for 20 seconds, three times on each side.
• Leg lift: Do three sets of 12 reps.
• Diamond sit-up: Do three sets of 12 reps.
• Bird dog: Do three sets of 10 reps on each side.

Cooldown

Three to five minutes of static stretching and breathing exercises.