True Fitness CS8.0 Owner's Manual page 34

TRUE's heart rate control (HRC) workouts let the bike monitor
your relative exercise intensity by way of your heart rate, then
automatically adjust the workload to keep you at your target
heart rate and thus your desired exercise intensity.
Your heart rate is a good measure of your body's exercise stress
level. It reflects differences in your physical condition, how tired
you are, the comfort of the workout environment, even your diet
and emotional state. Using heart rate to control workload takes
the guesswork out of your workout settings.
Consult your physician before using heart rate controlled
workouts for advice on selecting a target heart rate range. Also,
it is important to use the bike for several workouts in the manual
mode while monitoring your heart rate. Compare your heart rate
with how you feel to ensure your safety and comfort.
See Appendix A for a chart that may help you pick a target heart
rate.
You need to wear a heart rate monitoring chest strap to use heart
rate control. See the "Monitoring Your Heart Rate" section in
Chapter 2 for a guide to proper usage. It is not recommended
that you use the contact heart rate system for heart rate control
workouts.
Introduction to HRC
Chapter Seven: Heart Rate Control
CS8.0 Bikes Owner's Guide
Constant
HRC
34