Equipment Needed

• Dumbbells
• Medicine ball
• Jump rope*

*You may sub a 45-second stair run.

For these circuits, you’ll use a 45:15 interval format — working for 45 seconds and resting for 15 seconds. Repeat these circuits two times through. Rest 60 seconds between rounds.

For Day 18 – If you couldn’t make it through the whole workout on Day 8 without any breaks, this time try to push yourself through those 45 second intervals. You can do it!

Circuit 1 – Cardio Killer

• Ice Skater
• Medicine-Ball Squat to Press
• Frog Leap
• Wall Sit
• Jump Rope

Circuit 2 – Upper-Body Blast

• Dum...