Understanding heart rate training is the key to effectively improving fitness and coaching classes that meet students’ training goals. Heart rate monitors should be used at all times to ensure that each ride produces the desired benefits. Using the Spinning® Energy Zones and the associated heart rate guidelines allows you to design programs of training sessions that balance work and rest to achieve peak fitness. This is how exercisers can continually improve without suffering from overtraining and exhaustion. The variety of movements available to attain the prescribed heart rates in the Energy Zones generates much of the excitement, challenge and creativity of the Spinning program.