Range of Motion (ROM)
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The complete movement capability of a joint; train through the full ROM a joint safely allows.
Detail
Range of motion is the complete movement capability of a joint, especially the bones. To ensure proper development of strength, every exercise should be performed through the full range of motion that the joint safely allows. That includes the squat: the source's old "deep squats are not recommended" exception is outdated for healthy knees (see Squat Depth and Knee Safety (Deep Squats Are Not Inherently Dangerous)). An important caveat repeated in the source: ROM is not measured by how far the weights move; the user's actual joint ROM should be determined before performing exercise movements.
Key facts
- ROM = complete movement capability of a joint.
- Train through the full ROM the joint safely allows; for the squat that means as deep as individual mobility and technique allow.
- ROM is NOT measured by how far the weight moves.
Connections
- Joint Range of Motion Chart — degree values for each joint.
- Squat Depth and Knee Safety (Deep Squats Are Not Inherently Dangerous) — squat depth and knee safety (the retired "parallel only" rule).
- Full Range of Motion Principle ("ROM Is Not How Far the Weight Moves") — strength develops in the range trained.
Sources
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Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.