We’re going to work your core today. You are going to simultaneously hate it and love it. Be sure to use proper form during the side plank, don’t let your hip relax down towards the floor.

This workout will have a 2:1 work/rest ratio.

PERFORM PER ROUND:

• 30 sec – Crunches
• 30 sec – Leg Lifts
• 30 sec – Side Plank Left
• 30 sec  – Side Plank Right

Rest 1 minute between rounds.

NUMBER OF ROUNDS:

• Beginner – 3
• Intermediate – 5
• Advanced – 7

This ab workout is easily timed with your Gymboss Interval Timer.