The<unk>  is a diagnostic test used in the evaluation of cardiac function, developed by Robert A.<unk> . It is a standardized multistage treadmill test for assessing cardiovascular health. Developed by Robert A.<unk>  in 1963 who was an American Cardiologist. According to the original<unk>  the patient walks on an uphill treadmill in a graded exercise test with electrodes on the chest to monitor. Every 3 min the speed & incline of the treadmill are increased. There are 7 such stages and only very fit athletes can complete all 7 stages. The modified<unk>  is an alteration in the protocol so that the treadmill is initially horizontal rather than uphill, with the 1st few intervals increasing the treadmill slope only.
Bruce protocol
Abstinence pledge
Edmonton protocol
Up-and-down procedure
Mercer protocol
Nigro protocol
Wiley protocol
Senning procedure