heart rate is 140 bpm. After two minutes of no activity or cool
down, your heart rate is 90 bpm. Your recovery heart rate is 50
bpm (140 minus 90). Some studies have linked recovery heart
rate to cardiac health. Higher numbers generally indicate
healthier hearts.
TIP:
For best results, you should stop moving for two minutes
while the device calculates your recovery heart rate value. You
can save or discard the activity after this value appears.
Lactate Threshold
Lactate threshold is the exercise intensity at which lactate (lactic
acid) starts to accumulate in the bloodstream. In running, it is
the estimated level of effort or pace. When a runner exceeds the
threshold, fatigue starts to increase at an accelerating rate. For
experienced runners, the threshold occurs at approximately 90%
of their maximum heart rate and between 10k and half-marathon
race pace. For average runners, the lactate threshold often
occurs well below 90% of maximum heart rate. Knowing your
lactate threshold can help you determine how hard to train or
when to push yourself during a race.
If you already know your lactate threshold heart rate value, you
can enter it in your user profile settings (
).
Performing a Guided Test to Determine Your Lactate
Threshold
Before you can perform the guided test, you must put on a heart
rate monitor and pair it with your device (
). You must also have a VO2 max. estimate from a
previous run (
).
TIP:
The device requires a few runs with a heart rate monitor to
get an accurate maximum heart rate value and VO2 max.
estimate.
1
Hold
UP
.
2
Select
My Stats
>
Lactate Threshold
>
Do Guided Test
.
3
Select an outdoor running profile.
GPS is required to complete the test.
4
Follow the on-screen instructions.
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.
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
Your device analyzes your performance condition based on
heart rate and power data. You can use an ANT+ heart rate
monitor or a device with wrist-based heart rate.
1
If necessary, pair your compatible ANT+ sensor with your D2
Bravo device (
).
2
Add
Perform. Cond.
to a data screen (
).
3
Go for a run or ride.
After 6 to 20 minutes, your performance condition appears.
4
Scroll to the data screen to view your performance condition
throughout the run or ride.
Stress Score
Stress score is the result of a three-minute test performed while
standing still, where the D2 Bravo 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 score 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 score can help you decide if your body is
ready for a tough training run or yoga.
Viewing Your Stress Score
Before you can view your stress score, you must put on a heart
rate monitor, pair it with your device (
), and show the stress score app in the apps list
(
).
TIP:
Garmin recommends that you measure your stress score at
approximately the same time and under the same conditions
every day.
1
From the clock, select
START
.
2
Select
Stress Score
.
3
Select
START
.
4
Stand still, and rest for 3 minutes.
Activities
Your device can be used for indoor, outdoor, athletic, and fitness
activities. When you start an activity, the device displays and
records sensor data. You can save activities and share them
with the Garmin Connect community.
You can also add Connect IQ
™
activity apps to your device using
your Garmin Connect account (
).
Starting an Activity
When you start an activity, GPS turns on automatically (if
required). When you stop the activity, the device returns to
watch mode.
1
From the clock, select
START
.
2
Select an activity.
3
If necessary, follow the on-screen instructions to enter
additional information.
4
If necessary, wait while the device connects to your ANT+
sensors.
5
If the activity requires GPS, go outside, and wait while the
device locates satellites.
6
Select
START
to start the timer.
NOTE:
The device does not record your activity data until
you start the timer.
Stopping an Activity
NOTE:
Some options are not available for some activities.
1
Select
STOP
.
If you do not save the activity manually after stopping the
activity, the device saves it automatically after 25 minutes
have passed.
2
Select an option:
• To resume your activity, select
Resume
.
• To save the activity and return to watch mode, select
Save
.
• To discard the activity and return to watch mode, select
Discard
.
• To follow your track back to the starting point of your
activity, select
TracBack
.
6
Activities
