ROM Is Not How Far the Weight Moves
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Range of motion is not measured by how far the weight moves — determine the user's true joint ROM before the exercise, for safety.
Detail
ROM is not determined by how far the weight moves (it is not measured by how far the weights move). It is important to determine the user's ROM before the exercise movements — flagged "BE SAFE!" in pectoral training. This concept underpins safe exercise prescription: the goal is to move the joint through its appropriate range, not to chase the longest possible travel of the load, which can drive a joint past its safe limit.
In the five-step evaluation of proper resistance exercise, noting the ROM of each joint and ensuring proper placement of the axis of rotation is the final step.
Key facts
- ROM is not how far the weight moves.
- Determine the user's joint ROM before the movement.
- Note each joint's ROM and the proper axis of rotation when evaluating an exercise.
Connections
- Range of Motion (ROM) — ROM definition.
- Pectoral Training — Internal/External Rotation & Bar-Placement Cautions — "determine the user's ROM" chest caution.
- Five-Step Evaluation of Proper Resistance Exercise — ROM is the fifth evaluation step.
- Squat Depth and Knee Safety (Deep Squats Are Not Inherently Dangerous) — squat depth (the retired "parallel only" exception).
Sources
Topics like this depend on your health and history. A qualified coach or clinician can apply it to you safely.
Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.