noun
standing high jump
A high jump performed from a standing start, without a run-up. Used in physical education and track and field contexts.
体育の授業で立ち高跳びをした。
We did the standing high jump in PE class.
走り高跳び is the running high jump, the more common modern event. 立ち高跳び is the standing version, now rare in competition.
Compound of 立ち (standing) + 高跳び (high jump).