151–160 of 190 posts
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Pfft what could those scientists/doctors/trainers/experienced athletes possibly know that some dude on the internet can't anecdote his way into correctness? /s
Engineer/trainer/experienced athlete here I thought using the potential energy equation gave me a little credentials. I also wrote a book about this topic. But I didnt include it in the comment.
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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.
I still do cold showers, but just finishing with cold water for a short interval, 20 seconds or so. That seems to be entirely beneficial (I don't remember were I read it but there's some other cold shower expert recommending not going longer than that)
Anecdotally my own experience matches that of the rodents in the experiment. I've found that when I'm getting regular strenuous exercise (I bike up a steep hill as part of my commute) I almost never get sick, and can go > 1 year without so much as a sore throat. Conversely, when I'm more sedentary for months at a go, I'm more likely to become ill.
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This is all anecdotal evidence that's pretty well countered by this statement: > Their first conclusion was that athletes are lousy at identifying whether and why they are sniffling. The original 1980s studies had relied on runners’ self-reports of illness. But newer experiments that actually tested saliva showed that less than a third of marathon runners who thought they had caught a cold actually had. Statistically…
The anecdotes of hundreds of national and world class athletes I have trained, raced, and interacted with over the years is worth more than any study you can paste here, my friend. I suppose you are unlikely to see anyone here back me up since HackerNews isn't exactly an athletic demographic. Fever, red eyes, overflowing mucus, extreme soreness and raw throat for days or over a week - are you trying to tell me that t…
One might think oneself able to safely make unfounded assertions due to the rest of HN being overweight nerds coding away in their basements. OTOH, one might be surprised to find out how many former Cat 1 bike racers and formerly national-class 5K runners frequent HN. And they're not backing you up because their anecdotal evidence says otherwise.
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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…
3500 kcal per day is nothing. One can have a basal resting metabolic rate of 2500 kcal, then do some sports and you get 3500 easily. And you seem to be a bit underweight, go build some more muscle. 75kg is featherweight for that height ;)
Incorrect. My BMI is 21.4, which is almost exactly in the middle of the "healthy" range for my height. (Healthy BMI range is defined 18.5 - 25)
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Not sure what I can do with this information. I live in a crowded city and this is the only place I can get a workout.
Start sharing it with your fellow gym members and collectively demand that management make some changes to improve air quality. Crowdsource some testing devices to prove your point if necessary, now that you have an idea of which points you have to prove.
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…
Not sure what I can do with this information. I live in a crowded city and this is the only place I can get a workout.
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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…
How accurately/precisely can your wrist watch tell you what your energy expenditure is?
Since about 3 years I've been counting calories and let various wrist watches with 24/7 heart rate trackers (fitbit, later garmin devices) estimate energy expenditure.
So I measure energy in and out (with unknown error bars). The energy balance I get as a result predicts what my body weight should do.
My control is stepping on the scale every time before I take a shower, log, and observe trends.
Result, consistent over the last three-ish years: my measured weight does almost exactly what the calorie counting and wristwatch estimating predicts. I see absolutely no systematic error in one direction or the other (measured over weeks, that is, to do away with short term fluctuations).
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.
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What does it feel like as it starts getting higher?
I don't know, but I'd love to see some study on the impact of CO2 levels on the measures we typical care about regarding meetings: levels of alertness, qualities of social interaction, decision-making speed/quality, etc.
The overall feeling I got was "tired". My eyes didn't want to stay open. My mind felt like gauze was wrapping it. My attitude was mellowed and slightly depressed. It took more effort to move (even to walk to the door outside, which I did often despite it being allergy season). As soon as I spent 10m outside my energy started to return.