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Cardio health recovery

2 replies

Riverz · 22/01/2026 14:09

I know the vo2 max on Apple Watch probably isn’t that accurate, mine has always been pretty good and over time I watched it improve.

Im 45 and at a good point in the autumn my vo2 was 40. I started couch25k and was up to week 5 and running for up to 8 mins at a time. My heart rate was pretty good too

I then had a virus and it went to my chest and I was on anti biotics and steroids for a week.

Im back at running now after a month break. I’ve gone back to 90 seconds run then walk, then 3 mins run and it’s so hard, I am barely managing to finish! my VO2 has gone down to 38 and I am barely able finish the 3 min run. I’ve done this run 7 times now and still can’t move up to the next, still struggling! My HR is going into zone 4 on a light jog

Is this a case of persevering to improve my fitness or does it take a lot longer as you age to recover? What’s your recovery like? Or am I just ancient and this is the best I can hope to improve 😂

I don’t know what I’m asking but I’m struggling with how unfit I feel I am recently

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Freesiapleaser · 22/01/2026 18:26

If you had the virus I had not surprised. I collapsed with chest pain just after and now 8 weeks after that I'm only just at the point I can put my heart below my hips without going tachycardic. It's not been fun but had been a wake up that I actually need to start doing some cardio! Slow and steady.

UnaOfStormhold · 22/01/2026 18:14

That sounds like virus aftereffects. I would take it very easy and stay in z2 until you're back where you used to be pre virus. Fitness should come back but pushing too hard may delay things.