Final answer:
Creatine phosphate provides a rapid source of energy for muscle contractions in the initial 8-10 seconds, until muscles switch to glycolysis for ATP production.
Step-by-step explanation:
The statement that creatine phosphate is utilized for short term, high rates of energy production is true. Creatine phosphate serves as an energy reserve in muscle cells, quickly donating a phosphate group to ADP to form ATP in the first few seconds of muscle contraction. This energy transfer is facilitated by the enzyme creatine kinase and provides energy for approximately 8-10 seconds, which is much faster than the energy supplied through glycolysis, the subsequent process that breaks down glucose to produce ATP. Glycolysis is slower because it involves multiple chemical reactions, and its by-product, lactic acid, can cause muscle soreness.