Training effect and calories burnt during exercise is no longer accurate and very low.
Training effect and calories burnt during exercise is no longer accurate and very low.
Was your heart rate measured correctly? Have you entered all other values correctly? Which activity level have you set?
"Garmin devices calculate active calories based on the activity level, type of activity, age, height, weight, gender, and heart rate (if available)."
https://support.garmin.com/en-GB/?faq=lkl4cwCLlK7ox362uGQEV7