The 3 laws of #FatBurning for Ironman athletes:
1/ Your Ironman performance is 100% metabolically limited.
You can have the highest VO2max or the highest threshold power in the world & it means fat zero if your fat burning can't support it.
1/ Your Ironman performance is 100% metabolically limited.
You can have the highest VO2max or the highest threshold power in the world & it means fat zero if your fat burning can't support it.
2/ Your daily nutrition sets the limit on your #FatBurning
If you give your body more CHO than you expend, it will always preferentially use it first & your fat-burning will always suck. In order to improve your fat oxidation, your daily nutrition must match your training output
If you give your body more CHO than you expend, it will always preferentially use it first & your fat-burning will always suck. In order to improve your fat oxidation, your daily nutrition must match your training output
3/ After nutrition's in place, your ability to burn fat at competitive outputs is determined by how much Z1/2 you do.
Slow twitch fibers preferentially use fat as a substrate. Fast twitch fibers preferentially use CHO. If you're training FT fibers, you're training CHO oxidation!
Slow twitch fibers preferentially use fat as a substrate. Fast twitch fibers preferentially use CHO. If you're training FT fibers, you're training CHO oxidation!
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