By Whitney Bryen For The Oklahoman NORMAN — Every other week, manual laborers gather at The Modern Prairie Craftsman woodworking shop on Main Street for Blue Collar Yoga. Electricians, bar owners, welders, plumbers, mechanics and woodworkers, including The Modern Prairie Craftsman owner Ben Dragoo, are among the participants. Instructor Lindsey Densow, owner of Norman's Fusion Fitness and Yoga studio, said she started the class in February after hearing Dragoo complain about his aching muscles after a long workweek. “These guys are usually really strong, but their muscles are tight from repetitive lifting all day, so I'm trying to help improve their core strength and flexibility and open them up to help prevent injuries,” Densow said.Read more on NewsOK.com