Garmin Fenix5x Owner's Manual - Page 16
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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.
6
After you complete the guided test, complete the cool down.
Your FTP appears as a value measured in watts per
kilogram, your power output in watts, and a position on the
color gauge.
7
Select an option:
• Select Accept to save the new FTP.
• Select Decline to keep your current FTP.
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
Zones, page
11).
Performing a Guided Test to Determine Your Lactate
Threshold
This feature requires a Garmin chest heart rate monitor. Before
you can perform the guided test, you must put on a heart rate
monitor and pair it with your device
page
24). You must also have a VO2 max. estimate from a
previous run
(About VO2 Max. Estimates, page
TIP: The device requires a few runs with a chest heart rate
monitor to get an accurate maximum heart rate value and VO2
max. estimate.
1
From the watch face, select
2
Select an outdoor running activity.
GPS is required to complete the test.
3
Hold MENU.
4
Select Training > Lactate Threshold Guided Test.
5
Follow the on-screen instructions.
Recovery Heart Rate
If you are training with wrist-based heart rate or a compatible
chest heart rate monitor, you can check your recovery heart rate
value after each activity. Recovery heart rate is the difference
between your exercising heart rate and your heart rate two
minutes after the exercise has stopped. For example, after a
typical training run, you stop the timer. Your 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.
About Training Effect
Training Effect measures the impact of an activity on your
aerobic and anaerobic fitness. Training Effect accumulates
during the activity. As the activity progresses, the Training Effect
10
(Setting Your Heart Rate
(Pairing ANT+ Sensors,
8).
.
value increases, telling you how the activity has improved your
fitness. Training Effect is determined by your user profile
information, heart rate, duration, and intensity of your activity.
Aerobic Training Effect uses your heart rate to measure how the
accumulated intensity of an exercise affects your aerobic fitness
and indicates if the workout had a maintaining or improving
effect on your fitness level. Your EPOC accumulated during
exercise is mapped to a range of values that account for your
fitness level and training habits. Steady workouts at moderate
effort or workouts involving longer intervals (>180 sec) have a
positive impact on your aerobic metabolism and result in an
improved aerobic Training Effect.
Anaerobic Training Effect uses heart rate and speed (or power)
to determine how a workout affects your ability to perform at
very high intensity. You receive a value based on the anaerobic
contribution to EPOC and the type of activity. Repeated high-
intensity intervals of 10 to 120 seconds have a highly beneficial
impact on your anaerobic capability and result in an improved
anaerobic Training Effect.
It is important to know that your Training Effect numbers (from
0.0 to 5.0) may seem abnormally high during your first few
activities. It takes several activities for the device to learn your
aerobic and anaerobic fitness.
Color Zone
Training Effect Aerobic Benefit Anaerobic
From 0.0 to 0.9
From 1.0 to 1.9
From 2.0 to 2.9
From 3.0 to 3.9
From 4.0 to 4.9
5.0
Training effect technology is provided and supported by
Firstbeat Technologies Ltd. For more information, go to
www.firstbeattechnologies.com.
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 Settings > 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.
• Your heart rate is a good measure of exercise intensity.
• Training in certain heart rate zones can help you improve
cardiovascular capacity and strength.
• Knowing your heart rate zones can prevent you from
overtraining and can decrease your risk of injury.
Benefit
No benefit.
No benefit.
Minor benefit.
Minor benefit.
Maintains your
Maintains your
aerobic fitness.
anaerobic
fitness.
Improves your
Improves your
aerobic fitness.
anaerobic
fitness.
Highly improves
Highly improves
your aerobic
your anaerobic
fitness.
fitness.
Overreaching
Overreaching
and potentially
and potentially
harmful without
harmful without
enough recovery
enough recovery
time.
time.
Training