Für ein langes Leben ist Fitness wichtiger als Gewicht. Untersuchungen ergaben, dass eine gute Fitness das Risiko eines vorzeitigen Todes bei Menschen mit Fettleibigkeit im Vergleich zu normalgewichtigen Menschen, die nicht fit sind, um die Hälfte senkt.
https://www.yahoo.com/lifestyle/study-says-fitness-level-matters-191500905.html
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Although body mass index (BMI) has been routinely criticized as a poor measure of overall health, it’s still used by many healthcare practitioners and individuals as a shortcut to understanding whether someone has more health risks. But a new meta-analysis provides yet another reason for why we need to take the longer route instead.
Published in the British Journal of Sports Medicine, the research looked at 20 studies in which cardiorespiratory fitness was compared to BMI in nearly 400,000 adults, in terms of the effects of both on cardiovascular disease and all-cause mortality risk.
Cardiorespiratory fitness is defined as the ability of circulatory and respiratory systems to supply oxygen to the muscles during exercise—and the higher your capacity, the more fit you are. You’ll recognize VO2 max as the marker of your cardio fitness. According to previous research, this metric is widely seen as beneficial to both physical and mental health for all ages.
[https://bjsm.bmj.com/content/early/2024/11/07/bjsports-2024-108748.info](https://bjsm.bmj.com/content/early/2024/11/07/bjsports-2024-108748.info)
If they were looking at mortality outcomes, then you raise the possibility of the results being dominated by a short timeline horizon effect. Specifically, failing cardio fitness may just be a better short term indicator of folks that are likely to die soon. This doesn’t really tell us the long term impact of 30 years of obesity vs 30 years of being sedentary.
That said, I think I’ll go to the gym now.
It turns out that being overweight is often a pretty good indicator for being unfit. There can obviously be exceptions.
Also just to be clear, one mattering more still means the other matters.
Being overweight is also strongly associated with far more than just cardiorespiratory issues. Higher instance or worse outcome of metabolic disorders, gastrointestinal issues, musculoskeletal disorders, cancers, dementia, etc. Almost anything you can think of.
BMI is a really tenuous way of perceiving overall health.
I was deemed obese while being in the best physical condition of my life when I was younger at sub 10% body fat and intense training 4/5 days a week.
I’d imagine it’s pretty reasonable to assume in the event that someone’s carrying a decent amount of muscle mass the idea of weight alone being linked to health outcomes is extremely outdated.