Heart rate help

VinerPasso
VinerPasso Posts: 11
Trying to get my head around the heart rate zones and what they are telling me. Looking at my suffer scores on Strava, it is telling me that I am spending around 50% of my rides at zone 4. 20% in zone 3 and around 10 -15% in zone 5, with the rest in zones I & 2. Is this a good thing or a bad thing ?

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