The hamstring 90/90 test is considered positive if the leg cannot attain how many degrees from neutral?

In the context of the hamstring 90/90 test, a positive result indicates tightness in the hamstring muscles. The test assesses the flexibility of the hamstrings by measuring how far the leg can extend from a 90-degree hip flexion position. When the leg cannot attain at least 10 degrees of extension from the neutral position (which is straight horizontal), it suggests that the hamstrings may be too tight and limits the normal range of motion.

This threshold of 10 degrees is particularly significant because it helps differentiate between normal and restricted hamstring flexibility. If the leg can extend beyond this degree, it typically suggests that the hamstrings are functioning within normal limits. Thus, being unable to reach this minimal range points to potential musculoskeletal issues that could affect mobility, performance, and predisposition to injuries.

The options concerning greater degrees, such as 15, 20, or even 5, do not align with the standard clinical interpretation of this test, as the cutoff for indicating tightness is specifically noted around the 10-degree mark.