Gunnar Peterson, the director of strength and endurance for the Lakers, took over the Lakers' Instagram account on Wednesday with a live workout to show fans seven moves that could help them with ...

Watch on DVD or Blu-ray starting January 1st, 2003 - Buy Gunnar Peterson's Core Secrets: Full Body Challenge DVD ...

Kim Kardashian, Jennifer Lopez, Angelina Jolie and Bruce Willis are just a few of the famous faces personal trainer Gunnar Peterson works with every day in his Beverly Hills luxury gym. When it comes ...

The Full Body Challenge ups the ante on your exercise regimen. Challenge your body with this energizing workout designed to build strength and improve agility. The result: a lean, strong, sexy body.