Spinning does a great job on the lower body, but does little for the upper body, primarily the arms. Adding on “push-ups” in the middle of a spinning is a great way to keep the heart rate up while resting the legs. Between exercises when the legs are taking a break incorporate “push-ups” on a spinning bike, there are two basic styles, elbows in and out. Reps of 10 switching elbows in (close to the body) and out(left and right away from the shoulders) for a minute or two, done to a snappy beat this exercise keeps the heart rate going.
Spinning training actually teaches instructors that push-ups on the bike are a contraindicated move.