True Fitness 400 Series Treadmill User Manual


 
Warm Up Stage
Increase speed and grade gradually to slowly increase your
heart rate to within 10 bpm of your target. For best results,
you should take about five minutes to get to that point.
The treadmill will operate in a manually-controlled mode
during the warm-up stage. You control both speed and grade.
You may only increase speed and grade to the preset
maximum values entered. It is important that you start at a
low level of perceived exertion and gradually increase your
work load over several minutes until you approach your
target heart rate. This allows your body to adapt to your
workout. Increasing work load gradually will allow you to
enter the heart rate control stage without overshooting your
target.
NOTE: Warming up too fast may cause you to overshoot your
target. If this occurs it may take several minutes before the
computer software can control your heart rate. You may
overshoot and undershoot your target for several minutes
until stable control is achieved.
Heart Rate Control Stage
When your heart rate is 10 beats away from your target, the
computer software takes control of the treadmill at this
point. The time window will reset and begin descending from
the time you originally entered in the setup of the workout
parameters.
The treadmill’s computer now controls all speed and grade
changes. The treadmill will gradually continue to increase
your workload until you reach your selected target heart rate.
Note: Do not touch any keys. Touching any key before
pressing first will immediately exit you from heart
Heart Rate Control Workout
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