Alias · Guard
Knee shield half guard
Also known as Z-Guard / Knee Shield — the canonical term used on this site.
Descriptive — knee-shielding half-guard variant
Knee shield half guard is the descriptive name for the Z-guard — flagging the knee-shield mechanic in which the bottom player’s near knee shields the chest from the top player’s pressure.
Etymology. “Knee shield” specifies the knee-as-shield mechanism; “half guard” attaches the position-family. The compound predominates in coaching contexts that emphasise the defensive shielding function over the geometric Z-shape name.
Mechanics. The shielding knee creates space between the bottom player’s chest and the top player’s pressure — the structural separation provides recovery and sweep options.
Cross-reference. “Z-half,” “Z-guard half,” and “high guard half” are alternate names. Full mechanical coverage on Z Guard.