International Sports Sciences Association (ISSA) Trainer Practice Exam

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Is the ATP/CP pathway primarily used for activities lasting two minutes or greater?

  1. True

  2. False

  3. Only for anaerobic activities

  4. Only for aerobic activities

The correct answer is: False

The ATP/CP pathway, also known as the phosphagen system, is primarily utilized for short bursts of high-intensity activities, typically lasting around 10 seconds or less. This energy system relies on stored ATP and creatine phosphate in the muscles to quickly regenerate ATP, allowing for maximum effort during explosive movements such as sprinting, weightlifting, and high-intensity interval training. When activities extend beyond approximately 10 seconds, the body transitions to other energy systems, particularly the anaerobic glycolysis and aerobic pathways. The anaerobic glycolysis pathway supports activities lasting up to around 2 minutes, while the aerobic system becomes predominant for longer-duration activities that require sustained energy over 2 minutes. This understanding highlights that the ATP/CP pathway does not support activities lasting two minutes or greater, making the statement false.

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