Remember, sleep was a natural form of intermittent fasting, or “calorie restriction” before hardos started branding the term on YouTube. The name of the game isn’t to always hang out in the 1 or 2 zones and burn fat, but to be filtering between various zones depending on what your body should preferably be burning in specific situations throughout the day.įor instance: when you wake up, you want to be in fat burn. A “1” or “2,” meanwhile, indicates that you’re burning fat, while a “3” is a balanced mixture of the two. While an RER test produces a ratio between the amount of carbon dioxide produced in metabolism and the oxygen used (where a higher ratio indicates the body is relying on carbohydrates for energy), a preponderance of CO 2 will score a “4” or “5” on Lumen’s proprietary software. What is it measuring, exactly? The concentration of CO 2 in your breath. And even if you hit everything to a tee, it’ll likely ask for a secondary reading anyway. If you mess up during any portion of this process, Lumen will make you try it all over again. You inhale until a ring on the screen turns green, hold for 10 seconds, then exhale steady and sharp, using all that blowing to make sure a “ball” stays in the very center of a spectrum at the bottom of the screen. In order to log a reading, you open up the Lumen app on your phone (the device connects via Bluetooth) and select “Measure your metabolism.” The screen will prompt you to sit down and lean back, to ensure your breathing isn’t labored, then walk you through a somewhat annoying, albeit aesthetically pleasing process. Your body should always be ready and willing to make use of whatever fuel’s available to it, which, ideally, would include fat in addition to carbohydrates. ![]() They plug into charging stations, and they can run on biodiesel or ethanol. Excuse the overused automotive analogy, but today’s most efficient cars don’t rely entirely on petrol. ![]() It might help to associate your metabolism with a different quality: flexibility. There isn’t much you can do about your resting metabolism, and if you’re hoping to lose weight, attempts to speed up your metabolism through stringent dieting or excessive exercise often turn out to be self-defeating. These personal perceptions are blindly accepted as relevant to nutritional choices, workout regimens and general weight loss strategies.īut as Harvard Health Publishing points out, that speed or lack thereof (expressed through one’s basal metabolic rate), is largely genetic. As in: so-an-so can eat whatever he wants because he has a fast metabolism. We’re used to speaking colloquially about the speed of metabolisms.
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