FLEX Fitness (previously Graves fitness) is located at Dube Orthopedics on W. Main St. Lebanon, TN. Flex Fitness is a no frills gym with the best workout equipment in the area with heavy dumbbells up to 150 lbs) , turf for HITT/ cross fit style training, superb hammer strength machines & much more coming soon! FLEX Fitness has a training facility like no other around. Including, doctors & therapists on site. Come see why FLEX fitness has been the best kept secret in middle Tennessee.