Although not part of the original plan, the Joint Chiefs of Staff also created specified commands that had broad and continuing missions but were composed of forces from only one service. Examples include the U.S. Naval Forces, Eastern Atlantic and Mediterranean and the U.S. Air Force's Strategic Air Command.
Longer the test higher will be the sustainability and stronger will be the heart. An estimated time calculated to know how long a stress tests take is around 30 minutes without stoppage. This is considered as a normal time of a stress test if a person is strong enough to sustain the external stress and regular exercise.
The head-up tilt table test usually takes one to two hours to complete. However, that may vary depending on the changes observed in your blood pressure and heart rate and the symptoms you experience during the test. Before the test begins, a nurse will help you get ready. The nurse will start an IV (intravenous) line.