SpNRG ("spinergy") is a high energy form of stationary bike exercise that is guided by a trained instructor to beat-intensive music night club style
SpNRG pronounced "spinergy" is a high energy form of stationary bike exercise that is guided by a trained instructor to beat-intensive music, night-club style, in a darkened room lit only by black lights. You ride through a series of synchronized exercises.. the pace goes up and down in intensity to burn calories faster; from 500 to 1000 calories per workout.
