The Lactate Threshold Is Defined as the Work Rate or Oxygen

question 1

Multiple Choice

The lactate threshold is defined as the work rate or oxygen uptake at which there is a systematic

• A)rise in blood levels of lactate dehydrogenase.
• B)rise in aerobic metabolism.
• C)decrease in blood lactic acid concentration.
• D)rise in blood levels of lactic acid.

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Definitions:

Anaerobic Respiration

A form of cellular respiration that occurs without oxygen, producing energy and lactic acid or ethanol.

Creatine Phosphate

An energy storage molecule in muscles that helps rapidly regenerate ATP during high-intensity, short-duration exercises.

Aerobic Respiration

The metabolic process of breaking down substrates with oxygen to produce ATP, carbon dioxide, and water as by-products, occurring in mitochondria.

Isotonic Contraction

A type of muscle contraction in which the muscle changes length while the tension remains constant, usually resulting in movement.