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09-03-2023 09:54 AM - edited 09-03-2023 09:57 AM
This is my fitness in the last 3 months according to Strava as I am training for an upcoming 100 miler. In reality this couldn't be any further from truth. My aerobic fitness went up significantly. I handle heat much better than 3 months ago, and I recover quickly from long training runs.
What Strava calls fitness is highly misleading. This should be called something like acute training load as this gives a lot of emphasis on time spent in high intensity. But that isn't fitness as people who end up training too hard (at too high intensity) all the time tend to plateau. This doesn't encourage to train smart and only works to reflect noob gains for people who have just started exercising.
Also consider the fact that the biggest gains in "fitness" on this graph are from finishing races. But again that is false. Running a long distance race in fact suppresses fitness for a few weeks as the body needs to recover from a higher than usual stress.
03-18-2024 12:16 AM
Absolutely useless feature, this is why I will not continue my subscription this year. I have high intensity weight trainings which are like 90 mins and my simple commute ride to the office (~30 minutes) generate 3 times more relative effort then my weight trainings. It is a joke. I use a proper chest HR every time, my avg is 120 and max is 150, but gives me less than a long walk.
03-17-2024 01:32 PM - edited 03-17-2024 01:33 PM
This needs to be changed. My fitness has apparently dropped 12% in the past 12 months yet 1 year ago I ran a 4.04 marathon and a 1.47 HM. Within the last 2 weeks I’ve run a 1.28 HM and a 3.18 marathon and my fitness has dropped??!!
03-17-2024 11:55 AM
No question, of all the “features” in Strava, this measure of fitness is 100% the most useless and misleading.
03-17-2024 11:51 AM
Thanks for posting this. I whole heartedly agree. This graph promotes overtraining.
03-17-2024 11:54 AM
No question, of all the “features” in Strava, this measure of fitness is 100% the most useless and misleading.
02-12-2024 05:10 PM
I fully agree! The fitness chart is just an activity log. It really doesn’t accept recovery as part of training plan. I do long/slow runs in prep for ultra distances and Strava really doesn’t really seem to understand.
I was hoping it would be more useful.
09-08-2023 08:14 AM
@Silentvoyager The term fitness is indeed misleading but unfortunately it's the established wording in sport science for showing how much do you train at your limits besides "Chronic Training Load", which means exactly the same. The graph matches your description of your training, because it's all relative to you abilities and when you get better but your heart rate isn't so often in the red zones it means you didn't train as hard as before from a cardivascular point of view.
07-06-2024 10:16 AM
Chronic Training Load also does not reflect “fitness”. It is simply a metric that tracks the amount of training you are doing. “Fitness” is a totally general term that has no specific meaning in sports science, but for us quite obviously is attached to a specific task/goal…ie are we fit enough to achieve a specific performance goal. Strava takes no account of that; the fitness number is useless. CTL is simething completely different.
09-08-2023 09:53 AM - edited 09-08-2023 09:57 AM
Yes, I understand exactly what this graph means. I'd still argue that it confuses a lot of users. I can't tell you how many https://www.reddit.com/r/Strava/ posts I commented on about this graph. Perhaps it is terminology but I'd insist it shouldn't be called "Fitness" because it doesn't reflect fitness. And if someone wants this graph to keep going up they need to exercise harder and harder which would inevitably lead to a burnout.
Here is my graph for the last 10 years (apparently I can see that on the website):
If you look at years 2014-2016, I used to train hard all the time so my average HR was way higher than it is now, so the impact on this graph was higher. According to this graph, at the peak in 2014-2016, my fitness was 2x higher. But that isn't true. Currently, despite being 10 years older, my VO2max is higher and I can sustain higher volumes of training. I am faster on uphills. And, also, I've just set a PR on a fast 50km race course - one that requires to sustain speed over multiple hours - the same that I ran in 2014. In fact, looking at the Training Impulse for exactly the same race - in 2014 it was 729 and this year it was 531 - that is despite the fact that I finished that race faster this year and set a 50k PR. So does that actually reflect fitness?
Now, if you look at the beginning of 2016 - where the graph went down sharply. That was a real burnout - an overtraining that caused serious health issues and landed me in a hospital, and took a long time to recover from. That's what training at a higher intensity all the time may lead to.
Could I use a bit more high intensity training? Absolutely! Would that be reflected in the graph? Perhaps. But my main point is that what this graph shows is not fitness and that trying to keep going higher all the time would encourage bad training patterns and lead to a burnout.
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