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The modified Bruce Protocol 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. [3] The Bruce treadmill test estimates maximum oxygen uptake using a formula and the performance of the subject on a treadmill as the workload is increased ...
Johns Hopkins cardiologists analyzed 58,000 heart stress tests to come up with an algorithm called the FIT Treadmill Score. The score factors in peak heart rate and metabolism. The score factors ...
Two primary stress tests utilized are a treadmill test using ECG/electrophysiology metrics and nuclear testing, each have unique sensitivity and specificity values. The treadmill test, employing the modified Bruce protocol , [ 20 ] demonstrates a sensitivity range of around 73-90% and a specificity range of around 50-74%.
The test measures a person's heart rates at different loads (e.g. faster speeds on a treadmill). The points are plotted on a graph with heart rate on one axis and power (or some correlated measurement such as running speed) on the other axis; the graph's deflection point indicates the aerobic threshold.
First submaximal cycle test was developed by Åstrand and Ryhming in 1954, and is called Åstrand test. [1] [2] Other well-known submaximal cycle test is known as Physical Work Capacity (PWC 170) test. [1] [3] One of the first submaximal running test is well-known Cooper test developed by Kenneth H. Cooper in 1968. [4] [5] [6]
The test subject repeatedly steps onto and off of a platform every two seconds. [2] The height of the platform is 20 inches or 51 centimetres for men and 16 inches or 41 centimetres for women. The rate of 30 steps per minute must be sustained for five minutes or until exhaustion. To ensure the right speed, a metronome is used.
The goal and objectives, the time frame, the stress test level and the total costs of the stress test are defined. Phase 2: Assessment, during which the stress test at the component and the system scope is performed, including fragility [12] and risk [13] analysis of the CIs for the stressors defined in Phase 1. The stress test can result in ...
Angina index will be zero if no pain appears during the exercise, one if the pain is limited to the exercise period but the patient can continue the exercise (typical angina), and two if a limiting pain occurs which is a reason to stop the exercise test. [2] [3] Duke treadmill scores typically range from -25 (highest risk) to +15 (lowest risk).