Alias · Armbar
Wrist twist
Also known as Wristlock — the canonical term used on this site.
Training background: colloquial
Informal — rotational wrist submission
Wrist twist is an informal colloquial name for the wristlock — emphasising the rotational component of the joint loading rather than the broader “lock” category.
Etymology. “Twist” captures the rotational mechanic that defines most wristlock variants — radial or ulnar deviation under load. The label is generic gym vocabulary, used interchangeably with “wristlock” in casual speech. Precise vocabulary uses “wristlock” or the specific variant name (figure-four wristlock, mão de vaca) rather than the generic “wrist twist.”
Mechanics. The wristlock attacks the radiocarpal joint by loading it against its natural range — typically a combination of hyperflexion and radial or ulnar deviation.
Cross-reference. “Wristlock,” “wrist crank,” and “cow hand” are alternate names. Full mechanical coverage on Wristlock.