Grade 2 hamstring strain is defined by an AKE deficit of what range?

Grade 2 hamstring strain is defined by an AKE deficit of what range?

• A. <15%
• B. 16-25%
• C. 26-35%
• D. 0-5%

Answer: (B)

Active Knee Extension deficit shows how much the injured hamstring limits knee straightening compared with the uninjured leg. It’s expressed as a percentage of lost extension, so a bigger deficit means more tissue damage. For hamstring injuries, a mild strain tends to have a small deficit, while a moderate (Grade 2) injury commonly sits in the 16–25% range. This level reflects a partial tear with notable but not complete loss of function, fitting the description of Grade 2. Higher deficits (above about 25%) point toward more severe injury, while deficits under about 15% resemble milder strains.

Active Knee Extension deficit shows how much the injured hamstring limits knee straightening compared with the uninjured leg. It’s expressed as a percentage of lost extension, so a bigger deficit means more tissue damage. For hamstring injuries, a mild strain tends to have a small deficit, while a moderate (Grade 2) injury commonly sits in the 16–25% range. This level reflects a partial tear with notable but not complete loss of function, fitting the description of Grade 2. Higher deficits (above about 25%) point toward more severe injury, while deficits under about 15% resemble milder strains.