The effects of Cardarine are fairly significant and may be a welcomed addition to the stack for a performance athlete. Increased endurance may be the PPAR-RA’s most incredible attribute. Those who use the medication will find they do not tire out as easily and can train harder and longer. The cardiovascular endurance that comes with Cardarine is so strong it has been shown to do away with the cardio issues that surround the popular anabolic steroid Trenbolone.