Since you will be exercising, please wear comfortable clothes and proper shoes, no sandals boots or crocs. Make sure your chest is accessible for proper setup of the 12 lead EKG, and if necessary, please shave your chest.  Do not eat or drink (except water) for 3 hours before your test. Exercise should be avoided for 24 hours before your test to ensure you are able to perform your best, sore legs will only reduce your ability to achieve your max.