Execution:
- Patient is in supine position with the hips and knees flexed to 90° and the lumbar spine in neutral position
- The patient is then asked to stabilize this position by grabbing onto the back of the thighs
- The patient actively extends the knee on the side to be tested, while his lumbar spine remains in neutral position
Positive Outcome: The patient is not able to extend the knee further than within 20° of full extension, which indicates hamstring shortening on that side
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Neto et al. (2015) | Intra-rater ICC=0.91 | NA | NA | NA | NA |
| Comment: The AKE Test has excellent intra-rater reliability and a small MDD of 7°-8° | |||||
