26
Training
Getting Pulse Oximeter Readings
You can manually begin a pulse oximeter reading
by viewing the pulse oximeter widget. The widget
displays your most recent blood oxygen saturation
percentage, a graph of your hourly average readings
for the last 24 hours, and a graph of your elevation for
the last 24 hours.
NOTE:
The first time you view the pulse oximeter
widget, the device must acquire satellite signals to
determine your elevation. You should go outside, and
wait while the device locates satellites.
1
While you are sitting or inactive, press
UP
or
DOWN
to view the pulse oximeter widget.
2
Remain motionless for up to 30 seconds.
NOTE:
If you are too active for the watch to get
a pulse oximeter reading, a message appears
instead of a percentage. You can check again after
several minutes of inactivity. For best results, hold
the arm wearing the device at heart level while the
device reads your blood oxygen saturation.
3
Press
to view a graph of your pulse oximeter
readings for the last seven days.
Turning On All-Day Acclimation Mode
1
From the pulse oximeter widget, hold
MENU
.
2
Select
Options
>
Acclimation
>
All Day
.
The device automatically analyzes your oxygen
saturation throughout the day, when you are not
moving.
NOTE:
Turning on all-day acclimation mode
decreases battery life.
Turning On Manual Acclimation Mode
1
From the pulse oximeter widget, hold
MENU
.
2
Select
Options
>
Acclimation
>
Manual
.
The device begins a pulse oximeter reading when
you view the pulse oximeter widget.
Turning On Pulse Oximeter Sleep Tracking
You can set your device to continuously measure your
blood oxygen saturation while you sleep.
NOTE:
Unusual sleep positions can cause abnormally
low sleep-time SpO2 readings.
1
From the pulse oximeter widget, hold
MENU
.
2
Select
Options
>
Sleep Pulse Ox
>
On
.
Tips for Erratic Pulse Oximeter Data
If the pulse oximeter data is erratic or does not appear,
you can try these tips.
y
Remain motionless while the device reads your
blood oxygen saturation.
y
Wear the device above your wrist bone. The device
should be snug but comfortable.
y
Hold the arm wearing the device at heart level
while the device reads your blood oxygen
saturation.
y
Use a silicone band.
y
Clean and dry your arm before putting on the
device.
y
Avoid wearing sunscreen, lotion, and insect
repellent under the device.
y
Avoid scratching the optical sensor on the back of
the device.
y
Rinse the device with fresh water after each
workout.
Training
Setting Up Your User Profile
You can update your gender, birth year, height, weight,
heart rate zone, and power zone settings. The device
uses this information to calculate accurate training
data.
1
Hold
MENU
.
2
Select
User Profile
.
3
Select an option.
Fitness Goals
Knowing your heart rate zones can help you measure
and improve your fitness by understanding and
applying these principles.
y
Your heart rate is a good measure of exercise
intensity.
y
Training in certain heart rate zones can help you
improve cardiovascular capacity and strength.
If you know your maximum heart rate, you can use
Heart Rate Zone Calculations, page 27
determine the best heart rate zone for your fitness
objectives.
If you know your maximum heart rate, you can use
Heart Rate Zone Calculations, page 27
determine the best heart rate zone for your fitness
objectives.
About Heart Rate Zones
Many athletes use heart rate zones to measure and
increase their cardiovascular strength and improve
their level of fitness. A heart rate zone is a set range of
heartbeats per minute. The five commonly accepted
heart rate zones are numbered from 1 to 5 according
to increasing intensity. Generally, heart rate zones are
calculated based on percentages of your maximum
heart rate.
Setting Your Heart Rate Zones
The device uses your user profile information from
the initial setup to determine your default heart rate
zones. You can set separate heart rate zones for sport
profiles, such as running, cycling, and swimming. For
