Ashburn Athletes Open Fitness Center

Two Stone Bridge High School graduates have returned to the area to offer a new take on fitness and athletic training. Brothers Daniel Frantzen and Douglas Frantzen opened Next Phase Fitness, in the Goose Creek Village Shopping Center off of Belmont Ridge Road.

They’ve taken their experiences from soccer, football and wrestling travel teams, as well as D1 athletics, and combined them with exercise science to create a workout program that accommodates all fitness levels. Their studio specializes in a form of group exercise categorized as high-intensity interval training. In the 60-minute classes, equipment from rowers to barbells to punching bags are used, and the exercises change daily to prevent plateaus. They also use heart rate monitoring technology to track individual effort levels, calories burned, and moderate intensity levels.

Next Phase Fitness is a no-contract facility that offers month-to-month plans and sessions. Those interested are invited to try out the studio for free before they join. The studio is located at 21020 Sycolin Road, Suite 115, in Ashburn. Learn more at

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