Heart Rate Variability and Stress Level
Stress level is the result of a three-minute test performed
while standing still, where the D2 Mach 1 device analyzes
heart rate variability to determine your overall stress.
Training, sleep, nutrition, and general life stress all impact
how a runner performs. The stress level range is from 1
to 100, where 1 is a very low stress state and 100 is a
very high stress state. Knowing your stress level can help
you decide if your body is ready for a tough training run or
yoga.
Viewing Your Heart Rate Variability and Stress Level
This feature requires a Garmin chest heart rate monitor.
Before you can view your heart rate variability (HRV)
stress level, you must put on a heart rate monitor and
pair it with your device (
Pairing Your Wireless Sensors,
).
TIP: Garmin recommends that you measure your stress
level at approximately the same time and under the same
conditions every day.
1 If necessary, press START, and select Add > HRV
Stress to add the stress app to the apps list.
2 Select Yes to add the app to your list of favorites.
3 From the watch face, press START, select HRV Stress,
and press START.
4 Stand still, and rest for 3 minutes.
Performance Condition
As you complete your activity, such as running or cycling,
the performance condition feature analyzes your pace,
heart rate, and heart rate variability to make a real-time
assessment of your ability to perform compared to
your average fitness level. It is approximately your real-
time percentage deviation from your baseline VO2 max.
estimate.
Performance condition values range from -20 to +20.
After the first 6 to 20 minutes of your activity, the device
displays your performance condition score. For example, a
score of +5 means that you are rested, fresh, and capable
of a good run or ride. You can add performance condition
as a data field to one of your training screens to monitor
your ability throughout the activity. Performance condition
can also be an indicator of fatigue level, especially at the
end of a long training run or ride.
NOTE: The device requires a few runs or rides with a heart
rate monitor to get an accurate VO2 max. estimate and
learn about your running or riding ability (
).
Viewing Your Performance Condition
This feature requires wrist-based heart rate or a
compatible chest heart rate monitor.
1 Add Performance Condition to a data screen
Customizing the Data Screens, page 16
).
2 Go for a run or ride.
After 6 to 20 minutes, your performance condition
appears.
3 Scroll to the data screen to view your performance
condition throughout the run or ride.
Getting Your FTP Estimate
Before you can get your functional threshold power (FTP)
estimate, you must pair a chest heart rate monitor and
power meter with your watch (
), and you must get your VO2 max.
estimate (
Getting Your VO2 Max. Estimate for Cycling,
).
The watch uses your user profile information from the
initial setup and your VO2 max. estimate to estimate your
FTP. The watch will automatically detect your FTP during
rides at a steady, high intensity with heart rate and power.
1 Press UP or DOWN to view the performance glance.
2 Press START to view glance details.
3 Press UP or DOWN to view your FTP estimate.
Your FTP estimate appears as a value measured in
watts per kilogram, your power output in watts, and a
position on the color gauge.
Purple
Superior
Blue
Excellent
Green
Good
Orange
Fair
Red
Untrained
For more information, see the appendix (
).
NOTE: When a performance notification alerts you to a
new FTP, you can select Accept to save the new FTP,
or Decline to keep your current FTP.
Conducting an FTP Test
Before you can conduct a test to determine your
functional threshold power (FTP), you must pair a chest
heart rate monitor and a power meter with your device
(
Pairing Your Wireless Sensors, page 42
), and you must
get your VO2 max. estimate (
).
NOTE: The FTP test is a challenging workout that takes
about 30 minutes to complete. Choose a practical and
mostly flat route that allows you to ride at a steadily
increasing effort, similar to a time trial.
1 From the watch face, select START.
2 Select a cycling activity.
3 Hold MENU.
4 Select Training > FTP Guided Test.
5 Follow the on-screen instructions.
After you begin your ride, the device displays each
step duration, the target, and current power data. A
message appears when the test is complete.
Appearance
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Summary of Contents for D2 MACH1
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