With regard to the safety of exercise testing, which statement is NOT true?

The statement regarding the most vulnerable individuals being sufficiently taxed during submaximal tests is not true because submaximal tests are designed to limit the intensity of exercise to levels that are generally safer for individuals with specific cardiovascular limitations. These tests typically do not push individuals to their maximal capabilities, which can help minimize the risk of acute cardiac events or complications during the testing. While these individuals may still experience physiological responses or engage in significant activity, submaximal testing generally ensures that they remain within safer exertion levels.

In contrast, maximal activities are associated with a higher risk of complications due to the greater stress they place on the cardiovascular system. Additionally, while cardiac events can occur during both vigorous exercise or testing, the majority of serious complications tend to happen during the actual exercise phase rather than during recovery, which is a crucial element for consideration in testing protocols. Therefore, the statement about the vulnerability of individuals and the sufficiency of stress in submaximal tests does not accurately reflect the safety protocols or understanding of exercise testing procedures.