Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [1]. According to a study published in the Journal of Clinical Lipidology, atorvastatin did not have a significant impact on exercise performance in patients with high cholesterol levels [2]. Another study published in the Journal of Cardiovascular Pharmacology suggests that atorvastatin may improve exercise capacity in patients with heart disease by improving blood flow and reducing inflammation [3]. However, it is important to note that every individual may respond differently to medication and it is recommended to consult with a healthcare provider before starting or changing any medication regimen.

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