Training that increases aerobic power slightly more, even at the expense of some anaerobic power, may improve substrate utilization.

“meaning basically where here you are trading away a little bit on your anerobic to let's say anerobic capacity and power or say at least anerobic power maybe not capacity you don't want to trade that way but let's say anerobic power uh in order to increase your aerobic power slightly more so let's say of your V2 Max you're able to raise sustainably an even higher percentage of your of your v2x so that means also substit utilization would normally then be improved as well”