Precor 9.21 manual Warm-up Period

Note: To monitor your heart rate and use the HRC Program, you must purchase and install the optional heart rate receiver. While exercising, you need to wear the chest strap.

Warm-up Period

The treadmill provides a 3-minute, warm-up period. During this time, you may change the incline or speed.

Note: If your heart rate moves into the target heart rate zone during the 3-minute, warm-up period, the warm-up period ends and the Heart Rate Control Program begins.

Using the HRC Program

When the warm-up period concludes,

•The treadmill automatically adjusts the incline to keep your heart rate at the selected target. Pressing the INCLINE arrow keys no longer affects the incline lift, but does change the target heart rate.

•You can change the target heart rate or speed of the running belt, but doing so affects the unit’s ability to maintain your target heart rate in the preferred zone. It takes time for the treadmill to readjust the incline so that your heart rate remains on target.

Note: If you are having difficulty with the heart rate features, refer to Advanced Programming and Troubleshooting.

Owner’s Manual: Programs 24