The normal range of motion of the knee involves both flexion and extension, measured in degrees, with the anatomical position (standing straight) as the zero point.
Knee Range of Motion Details
| Movement | Degrees | Description |
|---|---|---|
| Flexion | 0 to 140 | Bending the knee, bringing the heel towards the buttock. The normal range of motion for flexion is from 0 to 140 degrees. |
| Extension | Zero degrees | Straightening the knee. Full extension is considered zero degrees. According to the provided reference, extension is defined as zero degrees, representing full extension. |
In summary, a healthy knee should be able to bend (flex) to approximately 140 degrees and straighten (extend) completely to 0 degrees. The reference confirms these values, indicating that zero degrees is considered full extension.
