Knemometry

Knemometry (Greek: η κνημη, romanized: i knimi, lit.

'the lower leg') is the medical term for measuring the distance between knee and heel of a sitting child or adolescent using a technical device, the knemometer.

[2][3] Hermanussen introduced the mini-knemometer for accurate growth measurements of prematures and newborn infants.

[4] Mini-knemometry determines the lower leg length with an accuracy of less than 100 μm (0.1 mm).

In the human neonate, these spurts occur at intervals of 2 to 10 days, and they reach maximum velocities of up to 0.2 mm per hour at the lower leg.