Precor 5.21i, 5.17i, 5.19 manual Warm-up Period, Using the HRC Program

Important: Consult your physician to determine the appropriate target heart rate for your age and fitness level. If your physician recommends a different target heart rate than the one that appears on the display, use the appropriate RESISTANCE arrow keys to change the target heart rate once you finish the warm-up period. Do not exercise over the recommended range.

Warm-up Period

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

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 EFX automatically adjusts the resistance to keep your heart rate at the selected target. Pressing the RESISTANCE arrow keys no longer affects the resistance applied to your stride, but does change the target heart rate. Check the SmartRate display to see if you are maintaining your preferred zone (weight loss or cardiovascular). Your actual heart rate appears in the display when the HEART RATE LED is lit.

Important: Maintain a constant stride rate between 100 and 150 strides per minute. Automatic adjustments to the resistance cannot take place if you drop below 20 strides per minute.

•You can change the target heart rate, strides per minute, or ramp incline, but doing so affects the unit’s ability to maintain your target heart rate in the preferred zone. It takes time for the EFX to readjust the resistance so that your heart rate remains on target.

Note: If you are having difficulty with the heart rate features, refer to Troubleshooting Heart Rate.

Owner’s Manual: Programs 29