Three energy pathways.docx - All physical activity relies on Adenosine Triphosphate or “ATP” Adenosine Triphosphate is stored in muscles but the

Three energy pathways.docx - All physical activity relies...

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All physical activity relies on Adenosine Triphosphate or “ATP”. Adenosine Triphosphate is stored in muscles, but the reserves are very limited. All movement that lasts longer than a few seconds requires more ATP to be produced inside our bodies. The human body has three systems that can produce ATP. These systems are also known and the three energy pathways. The pathways are labeled as: 1) ATP – PCR system 2) the Glycolytic system (commonly referred to as the Lactic acid system) and 3) the oxidative system. The ATP-PCR system provides energy for movements lasting about 5 seconds such as strength or power movements. Examples of these movements are box jumps, throwing a baseball, golf swing, or a tennis serve. These movements can all be accomplished with ATP that is stored in the muscles. Once the ATP in your muscles is used up the body will shift into the second energy pathway known as the Glycolytic system.
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