About Training Effect; Heart Rate Variability And Stress Level - Garmin DESCENT MK1 Owner's Manual

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 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.
You can add Training Effect as a data field to one of your training screens to monitor your numbers throughout
the activity.
Color Zone
Training Effect technology is provided and supported by Firstbeat Technologies Ltd. For more information, go
to www.firstbeat.com.

Heart Rate Variability and Stress Level

Stress level is the result of a three-minute test performed while standing still, where the Descent 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.
Heart Rate Features
Training Effect
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
Aerobic Benefit
No benefit.
Minor benefit.
Maintains your aerobic
fitness.
Improves your aerobic
fitness.
Highly improves your
aerobic fitness.
Overreaching and poten­
tially harmful without
enough recovery time.
Anaerobic Benefit
No benefit.
Minor benefit.
Maintains your anaerobic
fitness.
Improves your anaerobic
fitness.
Highly improves your
anaerobic fitness.
Overreaching and poten­
tially harmful without
enough recovery time.
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