If You Want to Strengthen Your Core, Try Celeb Trainer Gunnar Peterson’s 5-Move Workout
If You Want to Strengthen Your Core, Try Celeb Trainer Gunnar Peterson’s 5-Move Workout December 19, 2018by TAMARA PRIDGETT Image Source: Getty / Jeff Bergen Celebrity trainer Gunnar Peterson — yup, the one who trains the Kardashians, Kate Beckinsale, and the Los Angeles Lakers — wants to help you improve your core workout and make […]