Jennifer Scherer Korzen looked at the gym scene in Fredericks- burg and spotted a niche market: seniors.

Boomers, who may have a health problem or two, can be intimidated by going to a fitness center where many clients are buff and the exercise machines can be daunting.

So Korzen, who opened Fredericksburg Fitness in 2008, decided to shift the focus of her business from boot camps for everyone to private and semi-private training for the senior citizen set at her new location in Cowan Center on Cowan Boulevard in Fredericksburg.

"I wanted to create something that is fun and private where people know they'll be working with professionals who are taking in consideration their past histories," she said. "Sometimes doctors have limitations for them."

Fredericksburg Fitness also offers Titleist Performance Institute's golf conditioning program because many seniors enjoy the sport, as well as nutritional counseling, custom-designed fitness programs and corporate fitness and wellness programs.

Currently, it's located in temporary space in Cowan Center, a strip center near the Mary Washington Hospital campus. It will open in its new, 2,400-square-foot facility there in mid-June.

Korzen envisions the fitness center as an upscale boutique where clients will be greeted by a receptionist and escorted to a private room where she or one of her two other professional trainers, Pamela Brown and Franklin Timms, will work with them individually or in groups of two, three or four.

Clients have to set measurable goals and be committed to exercising at Fredericksburg Fitness at least twice a week for 12 weeks and doing additional work at home. They also meet with Tracy Gish, a registered nurse, to discuss ways to improve their diet, and write daily posts about what they're eating.

"We do assessments every six weeks," Korzen said. "That's the true determining point where we can see if they're on track."

The assessments include body-fat tests, blood pressure readings, resting and exercise heart rates, circumference measurements and weight.

"Having a membership is not going to get you results," Korzen said. "It's that commitment. It's a huge commitment. If they're serious about fitness and results, they will commit."

Private training prices per week are $160 for 12 weeks or $140 per week for a year. The fee drops to $20-$25 per hour for semi-private lessons involving four clients, depending on the length of time involved.