Woman running on treadmill and hooked up to machines to test the body conditions and changes during exercise. Different woman on a stationary bike while hooked up to machines reading her pulse, breath rate, while doctors and technicians look on and records the body conditions. CU on heart monitor as woman bikes. Camera pans back to the woman on the bike with several close-ups on her face and feet as she bikes. CU on temperature controls for mouth and skin temperature. CU of technicians recording results on a clipboard.