Yes please. π
On some Garmin devices there is a Data Recording option that allows you to select between ‘Every Second’ and ‘Smart’.
Every Second Recording
In this mode, your watch continuously records data every second. This results in fine detailed data, but at the expense of increased memory and battery usage.
Smart Recording
According to Garmin:
Smart Recording logs key points when the fitness device detects changes in direction, speed, heart rate or elevation. It takes up less memory and allows the user extended recording time since it records less track points. Smart Recording does not affect the data being recorded such as pace and distance or heart rate. It only affects the data that is written to the file for storage on the device and on Garmin Connect by removing redundant data points.
https://support.garmin.com/?faq=s4w6kZmbmK0P6l20SgpW28
Whilst Garmin state that Smart Recording ‘only affects the data that is written to the file for storage’, it is our experience that this is not really true, and can result in significant periods of data loss, i.e. gaps in the data that can span many minutes. And whilst, if running at a constant pace your velocity might be fairly stable (though a cursory look at velocity traces suggest otherwise), heart rates can fluctuate more significantly. This obviously becomes problematic for analysis and subsequent interpretation for training plan generation.
Changing the Data Recording Setting
If present on your watch this is most commonly found under the System menu option. Under here you should find the ‘Data Recording’ option. Ideally, please ensure that this is set to ‘Every second’.
If you experience difficulties locating this option, please refer to your particular device manual. You may be able to find this online at the Garmin Support website.
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