Yan Markelov is a key figure in the fitness industry, serving as a representative and a significant contributor at Street Barbell, a company known for its innovative outdoor fitness equipment. He has been involved in the development and marketing of their unique fitness solutions, which focus on adjustable weight systems and user-friendly designs aimed at promoting outdoor training experiences​.

Street Barbell, established in 2016, aims to create community-focused outdoor fitness spaces that encourage physical activity and social interaction. Markelov plays a vital role in promoting this mission, contributing to the company’s commitment to set new standards in outdoor fitness by merging functionality with safety​