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How Strenuous Exercise Affects Our Immune System

nytimes.com

61–70 of 190 posts

Re: How Strenuous Exercise Affects Our Immune System

#61
post #42

Earlier quoted context omitted.

It's actually very bad advice, do not do this. All of the literature will plainly tell you this is a bad idea.

Especially with deadlift, back injuries are no fun at all.

Indeed.

Working up to a deadlift max doesn't take a lot of time, or a ton of sets. Like, 4-6 sets of 3-4 reps.

Longevity and injury-prevention is key to long-term gym vitality... but people don't usually appreciate this until they injure themselves somehow.

Re: How Strenuous Exercise Affects Our Immune System

#62
post #40

As a machinist and building maintenance engineer, I can almost guarantee any ill feeling you're experiencing after a trip to your local gym is due to the air quality. Gyms are rarely purpose built facilities. Rather, theyre rented and renovated spaces. In turn, airflow in the structure is planned for light industrial or office space. Almost no thought goes into the fact that gyms are sometimes hundreds of occupants m…

You’re not even mentioning CO2 concentration. I work in a large, open office with seemingly sufficient airflow, but after buying a CO2 detector on a whim I’ve seen that it frequently reaches 1200ppm, and you actually can tell that you feel like crap when that happens. I can’t imagine if the whole office was filled with people exercising.

What does it feel like as it starts getting higher?

Re: How Strenuous Exercise Affects Our Immune System

#63

I have one rule: I only ever do sports if I have rested well the night before. It took me until I reached my 40s to realise that lack of sleep + heavy exercise = high chance of catching a cold. Other sure ways how I can get sick: overdo sauna after exercising and, by far the worst, overdoing cold showers (Jim Hoff anyone? - I got seriously sick experimenting with that) I guess the overall strength of my immune system…

I can concur to your experience. I was knocked out for two weeks-to-month by overdoing strength, interval training and cold showers (~1 year), in combination with start up life; paradoxically sauna regime helped a lot (rigorous super hot 10-15 minutes + immersed super cold 2 minutes phases). Still, I was catching flu regardless. I also tried 3 days of salt-water fasting to reboot immune system; not sure how much that one did. Cold/coughing after a massive exercise was usually more bronchospasm/exercise induced asthma when I was not used to it. Lack of sleep was always a killer, I had 50% chance I catch some sickness symptoms when sleeping <5 hours within two days, especially when weather was bad.

Re: How Strenuous Exercise Affects Our Immune System

#64
post #54

I've been running for twenty years and am currently on a half-year streak with around 15km / day. In all those years I've been sick for about two weeks all in all. Before working out, that was like the average over half a year. Conclusion: Figure out what works for you, have a daily routine, add a bit of obsession and stop reading stories about the pros and cons of exercising.

Same with me during my peak running period last year; even when I was feeling ill or off, a run, albeit grueling at the time, always seemed to aid in my recovery (if only for the placebo of getting myself out of bed).

I really need to start doing it on the regular again...

Re: How Strenuous Exercise Affects Our Immune System

#65

Earlier quoted context omitted.

There is a high correlation between insufficient sleep and catching cold. It kind of made sense but I've looked it up and found several studies supporting this. This winter I've tried only cold showers after running outside. Cold showers as in (sometimes) my neck hurt if I did it too long. Did not catch a cold until this spring and I think this is more correlated to insufficient rest/sleep (on top of exercising) than…

What’s the theory behind the cold shower?

for me it wakes me the f up. It's strong like having drunk coffee or something. Results may vary of course, but works wonders for me and my focus during the day.

I know of an old woman who's beed ice-cold bucketing for years and looks great and hasn't been sick in a long time. Does this with -20C outside too. Yet I find I may get sick easier if it's too cold outside and I go all out freezing shower.

Re: How Strenuous Exercise Affects Our Immune System

#66

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…

Running is probably the worst sport as far as caloric expenditure is concerned. A serious endurance cyclist or swimmer will certainly go through 3000 kcal on a normal training day if not more. I've burned an estimated 5000kcal daily on the bike for weeks. What's more is I know these numbers are very accurate as we train with power meters that record our energy expenditure with minimal error. It's important to disting…

Why do you think cycling would burn more calories than jogging?

Re: How Strenuous Exercise Affects Our Immune System

#67
post #40

As a machinist and building maintenance engineer, I can almost guarantee any ill feeling you're experiencing after a trip to your local gym is due to the air quality. Gyms are rarely purpose built facilities. Rather, theyre rented and renovated spaces. In turn, airflow in the structure is planned for light industrial or office space. Almost no thought goes into the fact that gyms are sometimes hundreds of occupants m…

You’re not even mentioning CO2 concentration. I work in a large, open office with seemingly sufficient airflow, but after buying a CO2 detector on a whim I’ve seen that it frequently reaches 1200ppm, and you actually can tell that you feel like crap when that happens. I can’t imagine if the whole office was filled with people exercising.

The market for green gym is strong

Re: How Strenuous Exercise Affects Our Immune System

#68

Earlier quoted context omitted.

Running is probably the worst sport as far as caloric expenditure is concerned. A serious endurance cyclist or swimmer will certainly go through 3000 kcal on a normal training day if not more. I've burned an estimated 5000kcal daily on the bike for weeks. What's more is I know these numbers are very accurate as we train with power meters that record our energy expenditure with minimal error. It's important to disting…

Why do you think cycling would burn more calories than jogging?

Jogging is very efficient, mechanically speaking. You're not going to burn a lot of calories per hour.

Re: How Strenuous Exercise Affects Our Immune System

#69
post #40

As a machinist and building maintenance engineer, I can almost guarantee any ill feeling you're experiencing after a trip to your local gym is due to the air quality. Gyms are rarely purpose built facilities. Rather, theyre rented and renovated spaces. In turn, airflow in the structure is planned for light industrial or office space. Almost no thought goes into the fact that gyms are sometimes hundreds of occupants m…

i have a pet fascination with air quality- not in any real sense, but im always just wondering about it, since its so varied and virtually invisible. are there any simple small tools you know of that are good at get information about air quality. the only thing i see people sometimes use is a particulate meter that tells them the concentration of particulate matter of various sizes. seems like it would be cool to have a kit of different tools to measure things like c02 levels, voc's, particulates etc

Re: How Strenuous Exercise Affects Our Immune System

#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.

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