In the Isometric Extensor Endurance Test, what indicates a positive result?

In the Isometric Extensor Endurance Test, a positive result is indicated by holding the breath and pelvic movement. This suggests that the patient is unable to maintain proper isometric contraction of the extensor muscles due to fatigue or failure in maintaining control over posture. The presence of breath-holding indicates a compensatory strategy due to muscle fatigue, and pelvic movement can signify a loss of core stability, which further suggests that the extensor muscles are not able to sustain the required endurance for the duration of the test.

Holding the breath is also significant as it may indicate a lack of motor control or an inability to engage the core effectively during exertion, which is critical in an endurance test. Thus, both breath-holding and pelvic movement serve as meaningful indicators of the endurance capabilities of the extensor muscles during this specific assessment.