CRUfit is the TOP indoor rowing gym in the Bay Area. Group rowing is a rhythmic, meditation-like form of exercise which is both full-body cardio and strength training. It's also a non-impact activity. Our instructors are steeped in competitive rowing and coaching and bring a passion which elevates the group. If you follow the extensive form guidance given, chance of injury is low. Rowing works the big muscles in the legs quads, hamstrings and gluts), the core muscles and the upper body muscles used for pulling. It has also been shown to be effective in building and maintaining spinal bone density. We use Concept2 indoor rowers and their website has useful in-depth training and technique tips and videos.