When pertaining to metabolism during exercise, the relatively low consumption of oxygen.

Charged atoms found in the human body, such as sodium (Na+), potassium (K+), calcium (Ca++), etc.

The study of muscle/motor unit recruitment using surface or needle electrodes to acquire the electrical signals generated by muscle fiber depolarization during contraction.

Relating to the endocrine system, which consists of the glands and non-glandular tissues of the body and the hormones and hormone-like substances they secrete.

The state of being trained for endurance exercise, which is exercise that is continuous in nature and relatively long term (> 10 min).

The branch of physical science involving the quantification of energy exchange.

The physical entity that allows the capacity to do work.

Pertaining to enzymes.

A type of research where numerous variables are measured, or survey responses obtained, and the scores/responses are subject to statistics that establish relationships between the variables. Often, a single variable is of primary interest, and all other variables are related to this single variable. Such statistics can also adjust the relationships based on how these variables relate to each other, which provides what is called “unique” or “partial” correlations.

The process of water changing state to water vapor, and in so doing, using heat and thus providing a cooling effect.

The participation in physical activity for the purpose of stressing specific components of fitness.