Category: S

An exercise bout in which the energy requirement is greater than what can be supplied aerobically at VO2 max.  

The transfer of P directly from a phosphorylated intermediate or substrates to ADP without any oxidation occurring.  

The ability to make adjustments to maintain posture while standing still.  

That portion of physical fitness directed toward optimizing athletic performance.  

A transient decrease in red blood cells and hemoglobin levels (grams per deciliter of blood). A decrease in red cell volume from excessive red cell breakdown due to excessive physical activity. Sports anemia is a condition that commonly occurs after beginning an exercise program. When initiating such a program, plasma volume typically expands, thereby diluting…

An indirect calorimetry method for estimating heat production, in which expired air is analyzed for the amount of oxygen consumed and carbon dioxide produced. A measurement of the vital capacity of the lungs by use of a spirometer. A test that measures the function of the lungs. Spirometry helps doctors evaluate the lungs’ capacity to…

Slow-twitch muscle fibers that rely primarily on oxidative metabolism to produce energy.  

The theory that explains muscle contraction as the result of myofilaments sliding over each other.  

The specialized muscle cell organelle that stores and releases calcium. A network in the cytoplasm of striated muscle fibres. Network of tubules and sacs that function in muscle contraction and relaxation. An arrangement of membranous vesicles and tubules found in the cytoplasm of striated muscle fibers. The sarcoplasmic reticulum plays an important role in the…