John is an athlete runner that has recently changed his diet to vegetarian. he has noticed that despite maintaining their total caloric intake, and training regimen, their lactate threshold has decreased (i. e., they start seeing lactate in their blood sooner). in addition, he tires more easily, and his running times have dropped. after consultation with an expert, john starts eating more lentils, beans and spinach filled with iron. his lactate thresholds go back to normal, as does their athletic performance. what is the complete explanation for john’s decreased lactate threshold and athletic?

a progressive heart disease that affects pumping action of the heart muscles.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.