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How Strenuous Exercise Affects Our Immune System

nytimes.com

101–110 of 190 posts

Re: How Strenuous Exercise Affects Our Immune System

#101
post #4
post #3

Earlier quoted context omitted.

Exercise pushes stuff around in your gut which is probably more directly related to the immune response than the possibility of eating raw meat.

Why would you go run (hunt) if there is still stuff (food) in your gut.

Are fed hunters statistically more likely to successfully hunt than unfed hunters? It seems plausible, so hunters that took advantage of their fed state would have had an adaptive advantage.

Re: How Strenuous Exercise Affects Our Immune System

#102

Earlier quoted context omitted.

Best to hunt when you are loaded up on fuel. Don't want to be hunting when energy is low as you will most likely be less successful as your focus, patience, and response times will all be lower. Hunting isn't like going to the store, success isn't guaranteed.

I think the opposite. People that fast for a period (> 16 hours) report improved energy levels. This may be because after a while the body enters a ketogenic state where it burns body fat, which is a great source of energy and perfect for when on the hunt.

> I think the opposite. People that fast for a period (> 16 hours) report improved energy levels. This may be because after a while the body enters a ketogenic state where it burns body fat, which is a great source of energy and perfect for when on the hunt.

Ketogenesis requires over a week of carb restriction IIRC. I think fasting yields energy because the body increases various stress hormones to push you to find food so you don't starve.

Re: How Strenuous Exercise Affects Our Immune System

#103

Earlier quoted context omitted.

You only present anecdata here, and you numerous times refer to "any serious athlete" or "any serious cyclist". But where is your scientific evidence supporting your claims? The article claims these claims are myths and you haven't contradicted that here.

I have a PhD from a top institution, so I'm all for science. But the science on this matter is misleading to people who aren't experts in the field, so I don't blame you for calling me out. Let me try to explain why there is no contradiction, and why the science here can't be relied upon across the board. First, my anecdata pertain to athletes who are competitive on a national or regional level - Olympic Trials quali…

> I have a PhD from a top institution

I'm sorry but any comment that starts out "I have a PhD from a top institution" reeks of Appeal to Authority: https://en.wikipedia.org/wiki/Argument_from_authority

Then you appeal to science without actually citing any science, but yet more anecdotal data and thoughts from your own mind.

Your arguments are just not very strong because they're all coming from your own experience and thoughts. Your qualifications in exercise and academia (especially on a partially anonymous internet forum) do not make your thoughts any more valuable than anyone else's here without resources to back them up.

Re: How Strenuous Exercise Affects Our Immune System

#106

This article doesnt make mention of my workout where I lift something heavy 1 time. I had the idea that I wanted to reduce time in the gym, so I used the potential energy equation PE= M g h I'm not getting any taller, so the only thing I could change was either the reps or mass of weight moved. I made it my goal to lift heavy weights so I'd only need to deadlift 1 time and be able to pig out. TBH, it works, I lose 1…

For real?

How high do you lift it?

How's your back?

Who's we? (can I join)

Re: How Strenuous Exercise Affects Our Immune System

#107
Kudus to NYT for stating the TL;DR right at the top, instead of exhausting the reader with meaningless paragraphs.

> The review concludes that, contrary to widespread belief, a long, tiring workout or race can amplify immune responses, not suppress them.

Would be even better if that was reflected in the title, but alas, my expectations from a modern website are not so high.

Re: How Strenuous Exercise Affects Our Immune System

#108
post #100

Anecdotally: when I was a bike racer I noted that if I was so exhausted after a hard training ride (usually 5+ hours, >100 miles) that I was involuntarily falling asleep afterward that I would inevitably come down with a sore throat leading to a cold within 12-24 hours. 100% of the time. I've had maybe 2-3 colds in the decades since I quit racing.

What was your hydration and nutrition like post/pre?

Hydration was completely insufficient, I realized much later. Nutrition was the typical medium-to-large meal after a shower/nap. There was often a long car ride home, an hour or so.

Re: How Strenuous Exercise Affects Our Immune System

#109

Earlier quoted context omitted.

Found the fatty ;) Ok, seriously.... math: if you eat 3000 kcal per day and lose 1 lb per week, you're burning 3500 kcal per day. This is quite a lot. It's near impossible unless you work out a lot and are veeeery muscular... or are impossibly tall... or, well, fat. (Or a combination of those.) Take me for comparison: I am 187cm (6'1ish) tall and weigh 75kg (165 lbs), pretty much smack in the middle of the "normal we…

A couple of years ago, I took a half-day hike up a mountain called Timpanogos with my son. According to my fitness tracker, I burned over 8000 kcal on that trip. It was a bit strenuous, but not painful. The estimate of calories burned seemed reasonable to me. EDIT: According to this chart, I probably burned around 600 kcal per hour: http://www.nutristrategy.com/caloriesburnedwalking.htm It took us about 8 hours, so t…

Not even close. It's highly unlikely that you burned more than about 3300kcal (and probably less). You can check out calorie counts from hikers with similar times on Strava.

https://www.strava.com/segments/8428908

Re: How Strenuous Exercise Affects Our Immune System

#110
post #70

Started doing Tabata sprints a couple years ago. Amazing how much more effective they are versus running at a slower pace for 40 minutes (my old routine). Also, never knew this, they make self-powered treadmills which are really ideal for sprinting on. I just bought a ASUNA Hi-Performance Cardio Trainer Self Powered Manual Treadmill, it's pretty much ideal for Tabata/sprinting for a home-gym.

Effective at what?

At lowering bad cholesterol and more after burn effect.
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