inactive. This is typically quantified/determined by a low score on a survey that quantifies daily physical activity.

Consecutive thin slices of muscle from a biopsy sample that are used in histochemistry.

The liquid component of blood that remains after the blood clotting process.

The segment of the intestinal tract connecting the stomach to the colon. This is the main region of the nutrient uptake into the body.

The most prevalent cation in the human body.

The science of biochemical analysis using the absorption of light at specific wavelengths to quantify molecular concentrations in solution.

Commercial drinks containing flavoring, carbohydrate and electrolytes marketed for use during exercise.

Running as fast as possible.

The conclusion drawn after applying statistics resulting in an alpha level (p) value less than a pre-determined value (usually 0.05).

The rate of stepping during walking or running.

The rate of body movement during each step.

Molecules of a chemical reaction that are modified to form product(s).

A specialized lipoprotein molecule that lines the surface of the small airways of the lung, functioning to decrease surface tension and the work of ventilating the lung.

The fluid that exudes from the skin via sweat glands. Sweat functions to cool the skin by evaporative cooling.

The biochemical process involving the increased size and complexity of molecules.