article_snippet: Scroll down to read DailyMail.com review of the test...
article_snippet: But we wanted to quantify that risk precisely by age, gender and fitness level, and do so with an elegantly simple equation that requires no additional fancy testing beyond the standard stress test.'
article_snippet: For the study, the team analysed information on 58,020 people, ages 18 to 96, from Detroit, Michigan, who underwent standard exercise stress tests between 1991 and 2009 for evaluation of chest pain, shortness of breath, fainting or dizziness.
article_snippet: I looked at the test and thought:
article_snippet: Exercise stress tests usually measure how well the heart and lungs respond to physical exertion while a person is walking on a treadmill at progressively higher speed and elevation.
article_snippet: The test is stopped once a person reaches the point of exhaustion or develops chest pain, dizziness or heart rhythm abnormalities.
article_snippet: Those who have normal readings and no alarming symptoms while exercising are said to have 'normal' results and typically do not require further testing.
article_snippet: However, the researchers say, the new data show varying degrees of fitness among those with 'normal' stress test results that reveal telling clues about cardiac and respiratory fitness and, therefore, overall death risk over time. '
article_snippet: Stress test results are currently interpreted as 'either/or'
highlights_snippet: It also looks at ability to tolerate exertion as measured by 'METs'
  Scientists say Test is more useful than existing stress exams .