Celebrity Trainer Erin Oprea's Game-Changing Leg Workout

These Celebrity Trainers Swear It's Possible to Get a Good Workout in 5 Minutes

Inside Hayley Hubbard's Pregnancy Workouts With Trainer Erin Oprea Before Baby No. 3

Simple yet super effective is my style. These moves work!! This is a

The 4 x 4 Diet: 4 Key Foods, 4-Minute Workouts, Four Weeks to the Body You Want: Oprea, Erin, Underwood, Carrie: 9781101903100: : Books

Erin Oprea Demonstrates Carrie Underwood's Leg Workout

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Carrie Underwood's Trainer Erin Oprea Shares Her Workout Secrets

Celebrity Trainer Erin Oprea: Arm Exercise Your Workouts Been Missing

Get in Shape Like Carrie Underwood with This 4-Minute Workout