Doing our April Challenge exercise circuits? Here are some exercise instruction videos for moves you may not be familiar with. Mt. climbers (Mountain climbers) High Knees Jump Squats Wall Sit Burpees Modified Burpees Fire Hydrants Bridge Lateral Raise Dumbell Row Calf Raises Bent Over Flys (Reverse Flys) Chest Press Shoulder Press Donkey Kicks Good Mornings Supermans