What is the probable outcome if a participant exhibits significant nervous system symptoms during a VO2 max test?

During a VO2 max test, significant nervous system symptoms—such as confusion, dizziness, or fainting—indicate that the participant may be experiencing a serious health issue that needs immediate attention. These symptoms suggest that the individual's body is unable to cope with the stresses imposed by the test, potentially putting them at risk for more severe complications. Halting the test immediately ensures the safety of the participant, allows for a quick assessment of their symptoms, and provides an opportunity to prevent any further complications. It is essential to prioritize the participant's health and well-being over the continuation of the test, especially when alarming signs are present.