These days, walking into a gym expecting to see at least a few spinning bikes is a safe bet. These stationary bikes may look like the indoor equivalent of cycling, but they can offer a far more intense workout in many ways. Research suggests that spinning may be even more beneficial than ordinary bicycling for physical fitness, blood constituents, and body composition.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/what-does-spinning-do-to-your-body