Lipitor is a brand name for the drug atorvastatin, which is a medication used to lower cholesterol levels and reduce the risk of heart disease and stroke [1]. As for whether Lipitor can impact running performance, there is limited evidence to suggest that it may affect muscle function, but it is unlikely to have a significant impact on overall running performance.
A study published in the Journal of Clinical Lipidology found that statins, including atorvastatin, may cause muscle-related side effects, such as muscle pain and weakness, in some individuals [3]. However, the study did not specifically investigate the impact of statins on running performance.
Another study published in the Journal of the American College of Cardiology found that statins do not have a negative impact on exercise capacity or physical activity in individuals with or without heart disease [2]. The study included a meta-analysis of 31 randomized controlled trials, which found no significant difference in exercise capacity or physical activity between individuals taking statins and those taking a placebo.
Additionally, an article published in Runner's World cites a few studies that suggest that statins do not have a negative impact on running performance [2]. The article notes that while some individuals may experience muscle-related side effects from statins, these effects are typically mild and do not affect overall exercise capacity.
In conclusion, while Lipitor may cause muscle-related side effects in some individuals, there is limited evidence to suggest that it has a significant impact on running performance. The available studies suggest that statins, including atorvastatin, do not have a negative impact on exercise capacity or physical activity in most individuals. However, individuals who experience muscle-related side effects from statins may want to speak with their doctor about adjusting their medication or exercise routine [2][3].
Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.runnersworld.com/news/a20859227/statins-wont-hurt-your-run/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3779874/