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Yeah, you definitely have to sacrifice parts of your overall health if you want to exercise more than 90 minutes per day. /s Diminishing returns doesn't mean

Yeah, you definitely have to sacrifice parts of your overall health if you want to exercise more than 90 minutes per day. /s Diminishing returns doesn't mean that you have to sacrifice anything (besides some idealized notion of efficiency). The hurt-your-overall-health point is somewhere much closer to Olympic athlete than it is to 10hrs/week. If you just vary the activities a little, you will have no trouble with spending a lot more time on exercise. People who literally do only the one physical activity they compete in are straw men. PS: The number of people completely clueless about fitness on HN would be hilarious if it weren't so sad.

skizm 6y ago
Working out (not including warmup/cooldown) for 90 min, 7 days per week is insane and you will be less healthy. No rest day means you'll be over trained in less than two weeks, and your workouts will get worse over time. Not only that you'll probably get injured within a month. Let's say you create a sane schedule of 3 days on, 1 day off (or similar) and you workout 2 hours per day (20 hours in 2 weeks) and let's assume you're sleeping the necessary 10 hours per day for this training schedule. And we'll make the very generous assumption you manage to not get injured for an extended period of time. You're still at higher risk of infections due to suppressed immune system[1] and also at a certain FFMI, your cardiovascular health actually starts to decrease[2]. Plus the chances that your nutrition, mobility, sleep schedule, and training plan are all good enough to not get you injured or sick during training, are astronomically low. I only workout 60-75 minutes 5 days/week and I'm already at or above the FFMI level where my heart health is worse than if I just stuck to moderate intensity exercise for less time. [1] https://pubmed.ncbi.nlm.nih.gov/19336500/ https://pubmed.ncbi.nlm.nih.gov/19336500/ [2] https://www.sciencedirect.com/science/article/abs/pii/S0025619616000422 https://www.sciencedirect.com/science/article/abs/pii/S00256...
- def_true_false 6y ago
  Huh, seems I read "workout" as "generic exercise" in your previous post, but I guess you meant high intensity stuff exclusively. I'm pretty sure most athletes have stuff to do that doesn't really have this sort of limit -- like cardio or technical work.
  - skizm 6y ago
    Runners experience the same immune suppression effects as people who train HIIT: https://pubmed.ncbi.nlm.nih.gov/8164529/ https://pubmed.ncbi.nlm.nih.gov/8164529/
    - def_true_false 6y ago
      Interesting. The thinking behind my post was that if you add up training (for the activity they compete in) and all the other physical activities people do, the differences in training volume will be dominated by the other differences -- consider people with jobs that involve manual labor, or, to a lesser extent, bike commuters. Perhaps this was controlled for in the studies? The other thing I had in mind was people whose sports involve lots of different movements one can practice -- say, ice hockey. I have no idea whether ice hockey shooting practice counts as high intensity... but it's not nothing, and doesn't seem much like ultra running either.

skizm 6y ago

Working out (not including warmup/cooldown) for 90 min, 7 days per week is insane and you will be less healthy. No rest day means you'll be over trained in less than two weeks, and your workouts will get worse over time. Not only that you'll probably get injured within a month. Let's say you create a sane schedule of 3 days on, 1 day off (or similar) and you workout 2 hours per day (20 hours in 2 weeks) and let's assume you're sleeping the necessary 10 hours per day for this training schedule. And we'll make the very generous assumption you manage to not get injured for an extended period of time. You're still at higher risk of infections due to suppressed immune system[1] and also at a certain FFMI, your cardiovascular health actually starts to decrease[2]. Plus the chances that your nutrition, mobility, sleep schedule, and training plan are all good enough to not get you injured or sick during training, are astronomically low. I only workout 60-75 minutes 5 days/week and I'm already at or above the FFMI level where my heart health is worse than if I just stuck to moderate intensity exercise for less time. [1] https://pubmed.ncbi.nlm.nih.gov/19336500/ https://pubmed.ncbi.nlm.nih.gov/19336500/ [2] https://www.sciencedirect.com/science/article/abs/pii/S0025619616000422 https://www.sciencedirect.com/science/article/abs/pii/S00256...

def_true_false 6y ago
Huh, seems I read "workout" as "generic exercise" in your previous post, but I guess you meant high intensity stuff exclusively. I'm pretty sure most athletes have stuff to do that doesn't really have this sort of limit -- like cardio or technical work.
- skizm 6y ago
  Runners experience the same immune suppression effects as people who train HIIT: https://pubmed.ncbi.nlm.nih.gov/8164529/ https://pubmed.ncbi.nlm.nih.gov/8164529/
  - def_true_false 6y ago
    Interesting. The thinking behind my post was that if you add up training (for the activity they compete in) and all the other physical activities people do, the differences in training volume will be dominated by the other differences -- consider people with jobs that involve manual labor, or, to a lesser extent, bike commuters. Perhaps this was controlled for in the studies? The other thing I had in mind was people whose sports involve lots of different movements one can practice -- say, ice hockey. I have no idea whether ice hockey shooting practice counts as high intensity... but it's not nothing, and doesn't seem much like ultra running either.