In the Fall of 1999, under the direction of Dr. Bonita Marks, the Exercise Science Teaching Laboratory opened its doors to its first 60 undergraduate students taking the 2-hour lab section for their required core course, Physiological Basis of Human Performance [EXSS 376 ]. The lab, housed within the Department of Exercise and Sport Science on the ground floor of Fetzer Gym (next to the basketroom), was created in order to enhance the undergraduate learning experience in the applied aspects of exercise/sport physiology and human performance.  Within the lab is the 21^st Century Club , a section of a wall which is dedicated to athletes in the EXSS major who have distinguished themselves academically.  Since the lab’s opening, over 500 students have passed through its doors studying everything from sprinting and ‘maxing out’ on the treadmill to body fat determination.  Their student research projects for class have included diverse topics such as investigating the effects of hyper- and hypo-hydration on urine specific gravity concentration to whether popular fat reducing creams can reduce localized fat in the abdomen. To accommodate the growing demand for this course, the labs are divided into 6 lab sections where the students actively participate in them every other week throughout the regular semesters. To insure a quality experience, each lab section is limited to 12 students. The 600 square foot facility is equipped with audio-visual equipment for teaching and the standard state-of-the-art equipment that the student is likely to encounter once out in the corporate or clinical setting. [ ESTL photos]  This includes computer driven treadmills interfaced with an electrocardiographic carts by Quinton, a clinical ECG simulator, a metabolic gas analysis system by Parvo, plus arm and leg cycle ergometers by Monark. In addition, the lab has several portable physiological measurement devices including a bioelectrical impedance scale by Tanita and Lange Skinfold calipers to determine body fat as well as urinalyis, blood cholesterol and lactate measurement devices.  In addition to undergraduate exercise physiology labs, this lab also serves to prepare both graduate and undergraduate students for national certifications in exercise testing and prescription for healthy and clinical populations. [EXSS 410; EXSS 412; EXSS 781].