Framing
Using the forearms, knees, or shins as rigid structural braces against an opponent's hips, shoulders, or head to create and maintain distance, preventing them from consolidating a dominant position — the mechanical basis underlying most of the escapes coded in this corpus (bjj-mount-escape-hip, bjj-back-escape, bjj-side-control-escape, bjj-half-guard-escape).
Using the forearms, knees, or shins as rigid structural braces against an opponent's hips, shoulders, or head to create and maintain distance, preventing them from consolidating a dominant position — the mechanical basis underlying most of the escapes coded in this corpus (bjj-mount-escape-hip, bjj-back-escape, bjj-side-control-escape, bjj-half-guard-escape).
Related concepts
Other principles recorded on Brazilian Jiu-Jitsu.
Base and Posture
Maintaining a stable center of gravity and an upright, structurally sound spine/frame in every position — the physical precondition for both offense (preventing sweeps and reversals) and defense (preventing the opponent's submission attempts).
Guard Retention
The skill of preventing a top-position opponent from passing to side control, north-south, mount, or back control — maintaining at least one leg between tori and the opponent's hips (the IBJJF's own structural definition of "guard").