Dr. Scott Lynn, Ph.D., Associate Professor at California State University tested the COBA Board ™️ at The Center for Sports Performance, School of Kinesiology in Fullerton, California. Counterbalance squats done on a 7% incline were clearly more effective than regular squats, lunges, and deadlifts. COBA's incline and toe raise puts your weight back on your heels to target your posterior chain muscles for your best butt ever in just 10 minutes a day.