In an Overhead Squat test, limited dorsiflexion with no heel lift may lead to which movement impairment to maintain balance?

In an Overhead Squat test, when there is limited dorsiflexion without heel lift, it typically indicates that the ankle is unable to fully flex forward as necessary for a proper squat position. This limitation leads to compensatory movements in order to maintain balance. One common compensation is forward trunk flexion.

As the individual's ankle cannot accommodate the necessary range of motion, the body may instinctively lean forward to lower the center of gravity and maintain balance during the squat. This forward flexion allows the individual to shift their body weight more effectively over their base of support, even though it may introduce improper mechanics.

The other options do not align as closely with the typical compensatory strategy responding to limited dorsiflexion. For instance, a backward trunk lean might be associated with other issues, such as hip or lower back problems. Similarly, hip extension or knee hyperextension do not directly relate to the compensations made due to ankle mobility limitations experienced during the Overhead Squat test. Thus, the most accurate response to limited dorsiflexion in this context is forward trunk flexion, as it reflects the most common compensatory adjustment made to maintain balance while squatting.