What is an Efficiency score?
Efficiency measures how the effort on your last activity compares to your fitness level. Various external and internal factors can impact your Efficiency score, such as quality of sleep, temperature, and elevation.
The score that you can receive will range from 80% to 120% and has 5 different levels.
- Excellent: 105% - 120%
- Great: 102% - 104%
- Good: 99% - 101%
- Fair: 96% - 98%
- Low: 80% - 95%
How do I receive an Efficiency score?
Not every bike activity will receive an Efficiency score. All of the following requirements need to be met to evaluate an Efficiency score:
- Track your ride with both heart rate data and power meter data in Bike or Indoor Bike mode.
- Ride for at least 10 minutes to allow for sufficient data to be gathered.
- For interval training, each interval should be over 3 minutes.
- Your heart rate during the ride should be between 65%-95% of your max heart rate, and it should remain steady throughout the workout (no large and sudden increases or decreases).
Why did I receive a low Efficiency score?
A lower efficiency score, such as Fair or Low, indicates there were factors impacting your workout causing your effort level to be higher than expected. Efficiency looks at the dynamic relationship between your heart rate and power data to see how the effort on your last activity compares to your fitness level. If your heart rate was higher than usual while your power output was lower than usual, this may indicate lower efficiency.
Here are some things to think about when receiving a lower score:
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What was the weather like? Was it hot and/or humid? It takes time and consistent training in the hotter weather to become acclimated to the heat.
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Was the route challenging with hills or a constant incline?
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Did you get enough sleep? Checking your recovery metrics can provide insights.