range of motion
nounUK /ˌreɪndʒ əv ˈməʊʃən/
US /ˌreɪndʒ əv ˈmoʊʃən/
Range of motion is how far a body part can move in different directions.
The doctor checked the range of motion in my arm after I hurt it.
RELATED WORDS
OTHER MEANINGS
2. The full extent of movement possible at a joint, measured in degrees.
Her knee has a range of motion of about 120 degrees.
3. The limits within which something can change or operate.
The robot arm has a wide range of motion.
4. The ability to move freely without pain or stiffness.
Regular exercise helps keep a good range of motion in your hips.