Kata ashi zuri 片足吊り
Single-leg suspension: one leg is lifted by rope, either as part of a partial or full suspension or while the person lies on the floor.
Kata ashi zuri (片足吊り) means, most literally, suspending one leg. Shibari Study notes that the term covers several situations: the lifted leg can be part of a partial suspension, part of a full suspension, or the only thing raised while the tied person lies on the ground. When the single leg becomes the point the body hangs from upside down, Shibari Study uses the longer kata ashi sakasa zuri, an inverted suspension from one ankle. Its separate entry ryō ashi zuri covers suspensions in which both legs are lifted together.