Here are the links to current research.
LOW BACK PAIN
1. McGill Study
Trunk muscle activity during bridging exercises on and off a Swissball | Chiropractic & Osteopathy - Mirror @ Uni Potsdam
2. The Truth About Low Back Pain
Low-Back Pain
3. Low Back Stabilization Exercises
CALORIC VALUES
1. Caloric Values of Alcoholic Beverages, Alcohol calories