“Are spinning classes as effective for losing weight and burning calories as cycling outside?” Yes, because most people will work harder during a spinning class than they will cycling outdoors, as they are encouraged and motivated by the instructor, but also by the music and the other members of the class. During a spinning class, people will be exercising for the entire class, frequently adjusting the resistance to simulate hills and sprints, which stimulates the brain and the body’s innate awareness, shaking-up the body as much as possible and not allowing it to settle into an exercising routine.
It is unlikely that cycling outdoors for exercise, will be as safe and as effective at losing weight and burning calories, as a spinning class.
For more information about spinning, follow this link: http://www.fitnessmatrix.co.uk/spinning-classes/