Glossary /// Alias
One-leg shoulder lock defence
Also known as Monoplata Escape — the canonical term used on this site.
Descriptive — plain-language form of the monoplata
One-leg shoulder lock defence is the plain-language form of monoplata defence, avoiding the -plata vocabulary entirely.
Etymology. The unadorned phrasing is what people reach for before learning the family’s Portuguese-derived names. It is worth indexing because search behaviour follows description rather than nomenclature for unfamiliar techniques.
Mechanics. Partial leg commitment means partial isolation, and partial isolation means the defender’s free arm can still supplement the trapped one. That is the mechanical reason this variant is the most escapable of the family, and why hesitating to use the free hand is the common error.
Cross-reference. “Single-leg omoplata escape” is the descriptive name. Full escape coverage on Monoplata Escape.