Rhonda Patrick· PhD
Vigorous intensity exercise is a good option for the time-constrained and probably offers some unique qualities (e.g., lactate shuttle) that are not as engaged at lower intensities.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Vigorous intensity exercise is a good option for the time-constrained and probably offers some unique qualities (e.g., lactate shuttle) that are not as engaged at lower intensities.
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When you're going, when you start to reach above, when you're getting to the 80% estimated maximum heart rate and you start to get high, you can't generate energy from the oxygen that you breathe in quick enough. And so your mitochondria, which are the major source of energy generating organelles inside of your cells, they require oxygen to make ATP, which is the energy I'm talking about. So you can't get that oxygen quick enough for the mitochondria to do it. And so you're forced to make energy outside of the mitochondria and you make it by using up glucose. And so the glucose then gets metabolized into lactate.
when you push your muscles to work harder than um the oxygen can get to them to make energy they shift to um from using mitochondria and using oxygen for energy to using glucose through glycolysis and it's a quick process that doesn't require oxygen it it makes lactate as a byproduct
when you are working really hard, you're forcing your energy system to produce energy quicker than your mitochondria, which are the little organels inside of your cells that are essentially mostly responsible for producing energy can can keep up with.
when you are working really hard, you're forcing your energy system to produce energy quicker than your mitochondria, which are the little organels inside of your cells that are essentially mostly responsible for producing energy can can can keep up with.