Gunnar Peterson's Core Secrets: FUNdamentals.

In Core Secrets FUNdamentals, Brooke and Gunnar demonstrate 10 of the best exercises to work your body from head to toe. Hit every major muscle group in this sequence of strength training moves. Gunnar remains at your side to ensure proper form and coach you through each and every exercise. FUNdamentals is where to start if you're new to Core Secrets or just beginning a fitness regimen.