Problem: Fat metabolism plays an important role in aerobic training by break down fatty acid into adenosine triphosphate (ATP) to generate energy for muscle contraction through beta-oxidation. However, low-fat diet may affect the way how body choose energy metabolism. The body relies on carbohydrate as primary fuel sources as low availability in dietary fat which enhanced the adaptation in biochemical leading to earlier crossover points which train the body shifts from fat to carbohydrate utilise. While lower dietary fat shift the use of carbohydrate as primary fuel source lead to a higher respiratory exchange ratio (RER) values during exercise which reflect the greater use of carbohydrate. The cori cycle help with lactate accumulation, recycle lactate back to glucose to continues performance. Need Assignment Help?