Range of motion (ROM) of the knee is the range in degrees through which the knee can bend and straighten (flex and extend).
Normal ROM is usually minus 5 to 143 degrees in women and minus 6 to 140 degrees in men.
A plastic goniometer with longer arms is usually used to measure range of motion.
|The scale part of the goniometer is placed on the joint line.|
Measuring range of motion in the knee
Knee range of motion is usually measured with a simple plastic device called a 'goniometer', although more sophisticated electronic devices are available.
Increasing Knee Range of Motion Using a Unique Sustained Method. Shah N. N Am J Sports Phys Ther. 2008 May; 3(2): 110–113.
Smartphone-based accelerometry is a valid tool for measuring dynamic changes in knee extension range of motion. Støve MP, Palsson TS, Hirata RP. Knee. 2018 Jan;25(1):66-72.
and ROM exercises:
- patellar mobilisations
- lying wall slides
- assisted flexion
- low load prolonged stretching
- passive extension