5 exercises - Full Body Circuit - DUMBBELLS ONLY

Warm up with 10 min on treadmill (slow pace) then 2 rounds of: 20 walking lunges 20 Jumping jacks 20 High Knees The circuit: 5 exercises 1 minute on each exercise No break between exercises 4 rounds 1 minute break between rounds All you need are two set of dumbbells (light and medium). I am using dumbbells of 20lbs and 12lbs in this workout