Which tests are commonly used to evaluate hamstring flexibility?

Which tests are commonly used to evaluate hamstring flexibility?

• A. Kendall's sit-and-reach test and 90-90 SLR test
• B. Becker’s flexion test and functional reach test
• C. Active knee extension test and Thomas test
• D. Modified sit-up test and plank test

Answer: (A)

Kendall's sit-and-reach test and the 90-90 straight leg raise (SLR) test are recognized effective measures for assessing hamstring flexibility. The sit-and-reach test evaluates the overall flexibility of the lower back and hamstrings by having an individual reach forward while seated, which provides insight into the length and flexibility of the hamstring muscles. The 90-90 SLR test specifically focuses on hamstring flexibility by having the subject lie supine and lift one leg to a 90-degree position at the hip while maintaining the other leg flat on the ground. The angle formed at the knee during this test helps determine the degree of hamstring tightness or flexibility. Together, these tests provide a clear understanding of hamstring flexibility, making them the preferred choices in the context of evaluating this specific muscle group.