Exercise Physiology Review

These flashcards cover key concepts related to exercise physiology, including metabolism, lactate thresholds, and factors that influence performance.

VO2max

The maximum rate of oxygen consumption measured during incremental exercise.

Lactate Threshold

The exercise intensity at which blood lactate begins to accumulate in the bloodstream.

Anaerobic Threshold

The point during exercise at which the body starts to rely more on anaerobic metabolism.

Oxygen transport/delivery

The body's ability to bring oxygen in and circulate it to working muscles and other tissues.

Factors influencing VO2max

Oxygen transport/delivery and oxygen utilization.

Type 2 muscle fibers

Fast-twitch muscle fibers that are primarily used for short bursts of intense activity.

Glycolysis

The metabolic pathway that converts glucose into pyruvate, producing ATP.

Lactate production

The process by which lactic acid is produced as a byproduct of glucose metabolism.

OBLA

Onset of Blood Lactate Accumulation, the point at which lactate exceeds a certain threshold.

Respiratory Exchange Ratio (RER)

The ratio of carbon dioxide produced to oxygen consumed during exercise.

Hydrogen shuttle

A mechanism that transports hydrogen ions produced during glycolysis to the mitochondria.

Fast-twitch muscle fiber recruitment

The activation of type 2 muscle fibers to generate powerful contractions.