Body literacy•Practice-based

Joint capacity

Also searched as: controlled range, usable joint range

Joint capacity is the ability to access, control, and tolerate a joint’s available range under appropriate demand.

body map2 claim notesupdated 2026-06-25

WBC translation

WBC uses joint capacity to move beyond stretching mythology: positions need ownership, not only sensation.

Why it matters

  • 1Useful for evaluating mobility drills, stretching aids, bands, and self-assessments.
  • 2Encourages slow progression and respect for end ranges.
  • 3Keeps product recommendations connected to training and movement practice.

Do not overclaim

  • A tool cannot prove or build joint capacity by itself.
  • Painful end-range work, instability, or neurological symptoms deserve caution and often professional guidance.

Evidence note

Joint capacity is a practice and coaching frame built from biomechanics and motor control principles; specific protocols should be claimed cautiously.