Bentonville resident Gina Williamson is opening Bentonville’s first Jazzercise Center in May at 212 S. E. 34 th St., near the Clarion Hotel and Convention Center. Jazzercise is moderate aerobics with exercises designed to improve strength, balance and flexibility. Williamson plans to offer four classes each week in the beginning, all based around Jazzercise Lite — which is the high-intensity, low-impact version of the hour-long class.