Which muscle group shows decreased inhibition in a positive heel tension test?

• A. Anterior trunk muscles
• B. Posterior postural muscles below T6
• C. Upper limb muscles
• D. Core stabilizer muscles

Answer: (B)

The positive heel tension test is primarily focused on assessing the relationship between the pelvis and the lower extremities, with particular attention to how tension in the lower limbs can affect the stability and function of the trunk. In this context, decreased inhibition of the muscle groups is indicative of altered neuromuscular control, often related to pelvic dysfunction or misalignment.

The posterior postural muscles below T6 are particularly affected by changes in tension and alignment arising from heel tension. When a positive result occurs in this test, it suggests that these muscles may be exhibiting a heightened activation state due to compensatory mechanisms triggered by the altered pelvic positioning or movement.

This phenomenon occurs because the neuromuscular system aims to maintain stability around the central axis of the body. When there is tension in the lower extremities, the body responds by adjusting the muscle tone in stabilizing muscle groups, including those in the posterior aspect of the trunk. As a result, the posterior postural muscles, which support alignment and posture, show decreased inhibition, thereby increasing their level of engagement in response to the tension experienced in the lower limbs.

In summary, a positive heel tension test leads to decreased inhibition in the posterior postural muscles below T6 as a compensatory mechanism to enhance stabilization and