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Cardio fitness is a strong, consistent predictor of morbidity and mortality

bjsm.bmj.com

151–160 of 556 posts

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#151
post #86

Earlier quoted context omitted.

To be fair, our diets and lifestyles changed drastically in the 20th century. When we're bombarded with advertisements of highly caloric, processed, sugary foods engineered to flood our taste buds and trigger dopamine, we can't be surprised that people get addicted to it. Combine that with forms of entertainment, transportation, and a work culture that keep us sedentary, and it's no wonder many people struggle with b…

indeed, a lot has changed from when we lived on rural farms doing manual labor. People aren't going back to the farms, so we need to adopt new behaviors and norms around self control. There is simply no viable alternative.

I would suggest that in the next 5 years or so if ozempic and others don't turn out to be cancer causing or have more than awful side effects that we'll see a large drop in obesity, as obesity isn't an easy thing to change. Likely other competitors will come along and use a similar mechanism and Novo won't be able to charge $1000 a month for it any longer allowing 80-85% of those who are overweight to give it a shot.

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#152

Earlier quoted context omitted.

This sounds ridiculous until you go to Amsterdam see that few wear helmets there. And everyone is cycling. They might be more inclined to cycle because they don’t need to wear a helmet. After years of cycling with helmet you get so used to it and it doesn’t bother you. But how many skip the bike because they never got used to wearing a helmet?

I biked through Amsterdam as a commuter along with everyone else for a week, and it just blew me away. Everyone was absolutely predictable and part of the “school of fish”. No hesitation or ill-conceived politeness. It was only a week but it was so refreshing. I think about this experience daily when driving because I think of how much time would be saved if people just knew absolutely when to take their turn and too…

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Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#153

Earlier quoted context omitted.

Of course. I was responding to the time spent (out of ones day), opposed to calendar days of not eating. That said, people can make pretty rapid weight loss without eating. skip eating 1 day a week and that is 30 lbs a year for an average obese man. skip 2 days/week and that is 60 lbs/year.

Those numbers are assuming someone who skips a day of eating doesn’t increase their calorie consumption on other days to compensate

A lot of people assume humans are mechanistic, unfeeling CICO convertors and exclude psychological and physiological realities of losing weight. I've grown used to it. It took several tries for me to drop 50lbs and most of it was psychological and good habit formation. it took about 3 years to complete that journey.

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#154
post #71

Earlier quoted context omitted.

reminds me of the bicycle helmet stuff. There was a ted talk that said bicycle helmet laws would kill more people than save. The reasoning was preventing people from riding would also prevent increased fitness, and more lives were lost from that than saved from accidents. EDIT: I think this one: https://www.youtube.com/watch?v=07o-TASvIxY

There's real data out there that while a helmet has better survival rates than not; but cars give more room to bicycles without helmets, so the incident rate is lower.

Appearing like a woman buys you even more space than riding without a helmet

https://www.eta.co.uk/2011/04/01/safest-bicycle-helmet-has-b...

https://pubmed.ncbi.nlm.nih.gov/17064655/

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#155

I am disappointed by how poor primary care is in the developed world. It could easily be made better by including a VO2Max test and a DEXA scan every few years. On my own dime, I took both (cost was ~ $150 total from a private provider) and the DEXA scan revealed I carried too much visceral fat and my cardiovascular fitness was only average, things that never came up in my yearly physical. The same applies for basic…

What's the advantage of a VO2max test compared to e.g. measuring speed or power in your (standardized) intervals?

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#156
post #60

Earlier quoted context omitted.

It only takes a few months to make substantial gains in c-v fitness.

Define substantial. I find that incredible. EDIT: Now that I've seen the replies, I realize that this is from a very low baseline. I'm personally going to the gym four to five days a week already and my own cardiovascular fitness has not seen much of an improvement in many months.

the only way I was able to improve mine was to use interval training to get my heart rate up. It took a few months but going from a walk to sprint levels on my elliptical did wonders after a while. Observing my heart rate carefully of course.

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#158
post #71
post #11

There’s amusing statistics that show that if you’re out of shape and a smoker, you get a bigger bang for the buck from getting in shape first than quitting smoking. Disclaimer: not an endorsement of smoking.

reminds me of the bicycle helmet stuff. There was a ted talk that said bicycle helmet laws would kill more people than save. The reasoning was preventing people from riding would also prevent increased fitness, and more lives were lost from that than saved from accidents. EDIT: I think this one: https://www.youtube.com/watch?v=07o-TASvIxY

Kind of tacky, but I had a strange "what if" kind of conversation with someone about alcohol. The premise was that more people are born due to drunken sexual encounters than are killed by drunk drivers.

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#159
post #126

Fortunately, this seems relatively simple to change (compared to other things with this magnitude of impact). It was a transformative experience to go from 40 VO2max to 57 (as reported by Apple Watch, and losing 30lbs on the way) over the past 12 months. The best part about it is that I didn't even have to give up anything - the extra energy I gained from 90-120 minutes of aerobics per day also had the effect of maki…

You should know that vo2 measurements that aren't performed via gas exchange or blood measurement are a complete guess. The other thing is the denominator of vo2 is weight. So losing weight without working out at all will increase vo2

It really doesn’t matter for most amateurs trying to improve their health whether the metric is accurate or not. The huge benefit of fitness trackers is that a metric is a metric is a metric. Eat less, exercise more, sleep soundly - you can’t go wrong, and if the metric is steps, or HR, or pace, or calories burned, or (in this case) estimated VO2max and seeing improvements in those metrics relative to a baseline is a motivating factor then that’s all that matters.

Well done to OP. Keep it up.

Re: Cardio fitness is a strong, consistent predictor of morbidity and mortality

#160
post #134
post #52

Earlier quoted context omitted.

That sounds like the sort of stuff that is completely correct. Low fitness is significantly more risky than smoking. (I am not suggesting that anyone start or continue smoking.) https://peterattiamd.com/all-things-vo2-max/

Nicotine suppresses appetite and is also a potent nootropic. Consuming nicotine in losenge or gum form doesn't have any of the ill effects of smoking or vaping. It's also virtually impossible for a nicotine naive person to become addicted through losenges.

It's still addictive and likely to be horrible for your heart (smoke causes cancer, but nicotine even in low doses causes what looks like heart issues, though unlike cancer these might be reversible).
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