Lipitor is a brand name for the drug atorvastatin, which is a medication used to lower cholesterol levels in the body [1]. While there is no direct evidence that suggests Lipitor can improve exercise performance, studies have shown that atorvastatin can improve endothelial function, which may indirectly enhance exercise performance [2]. Endothelial function refers to the ability of the blood vessels to dilate and contract, which affects blood flow and oxygen delivery to the muscles during exercise. In a study conducted on healthy adults, atorvastatin was found to improve endothelial function and increase exercise time to exhaustion [3]. Another study showed that atorvastatin improved exercise capacity in patients with heart failure [2]. However, it is important to note that these studies were conducted on specific populations and the effects of atorvastatin on exercise performance may vary depending on the individual. It is recommended to consult with a healthcare professional before using Lipitor or any medication for the purpose of improving exercise performance.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4679305/
[3] https://pubmed.ncbi.nlm.nih.gov/28807461/