Objective: Trace elements such as manganese (Mn). cobalt (Co) and chromium (Cr) play key roles in metabolic reactions and are important in many physiological enzymatic processes. In this study. we aimed to investigate the acute effects of moderate and strenuous running (treadmill) exercise on the levels of Mn. https://allfixelectricales.shop/product-category/nicd-rechargeable-battery/