The Brookbush Institute Publishes a NEW Glossary Term: 'Range of Motion (ROM)'
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NEW YORK, NY, UNITED STATES, November 20, 2025 /EINPresswire.com/ -- - Excerpt from the Glossary Term: Range of Motion (ROM)
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DEFINITION
Range of Motion (ROM) is the amount a bone can move around a joint. ROM can be measured in degrees with goniometry . ROM is also used to refer to the total range of motion during an exercise or movement pattern. Examples may include the depth of a squat , the height of a shoulder press , or how far someone can reach during serratus anterior activation.
- Note: There is an "optimal" range of motion for each joint. These ranges have been established via peer-reviewed and published original research studies (and are thoroughly reviewed in the courses linked below). Further, research has demonstrated that both a lack of optimal ROM and too much ROM are correlated with pain and dysfunction.
SEMANTIC CLARIFICATION
Note that joint ROM is often measured with goniometry .
- Active ROM is achieved by an individual taking a joint to end-range using their own muscular strength and is often limited by muscle extensibility.
- Passive ROM is achieved when an individual is relaxed and a joint is taken to end-range by another person, such as a physical therapist or athletic trainer. Passive range of motion often exceeds active ROM but remains limited by inherent muscle tone, non-contractile tissues, and joint anatomy.
- Active-assisted ROM is achieved when an individual takes a joint to end-range using their own muscular strength, with additional force applied by another person to reach the joint's end-range.
EXERCISE ROM
- Full ROM: The largest ROM that can be performed during an exercise with good form and without pain.
- Partial ROM: A deliberate or load-constrained repetition of an exercise.
- Lengthened partials: Partials ROM exercise performed in the lengthened position of the target muscle.
- Shortened partials: Partials ROM exercise performed in the shortened position of the target muscle.
Frequently Asked Questions (FAQs)
What are the different types of range of motion?...
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