Answer:
Hamstrings
Biceps
Triceps
Quadriceps
Deltoids
Glutes
Explanation:
All of the options refer to muscles or groups of muscles, EXCEPT Brain. The brain is part of the nervous system.
You didn't really provide any possible choices here but when we're talking about VO2max, we're talking about t emaximal oxygen consumption. Sometimes it's also refered to as our maximal aerobic capacity.
VO2max is the maximum amount of how much oxygen we can consume during a certain exercise. In clinical and medical settings treadmills, where the difficulty gets incread, are usually used. VO2max is considered to reflect our aerobic physical capabilities.
Carbohydrates, protein, minerals, fat, vitamins, and water are the 6 elements of nutrition