Researchers in the Department of Exercise & Nutritional Sciences at San Diego State University conducted a pilot study to determine the efficacy of the BOSU® Balance Trainer for improving muscular strength and balance in adults of various ages. Field measurements of static and dynamic balance, as well as abdominal strength, showed improvements ranging up to 31% after just a four-week program. A randomised, and larger controlled study is now underway to provide even more clinically meaningful information regarding the potential benefit of the BOSU® Balance Trainer for strengthening the core musculature and improving balance.