Gunnar Peterson's core secrets. Fun-damentals ; Gunnar Peterson's core secrets. Give me 20 / Guthy-Renker ; produced by Dragonfly Productions ; created and developed by Gunnar Peterson ; directed by Andrea Ambandos.
Publication Info.
Palm Desert, CA : Distributed by Guthy-Renker, [2003]
Fun-damentals: Using a fitness ball, Brooke and Gunnar demonstrate 10 of the best exercises to work your body from head to toe. Give me 20: This short full-body workout delivers an effective routine to work your arms, tighten your butt and abs and trims your legs in only 20 minutes a day.