noun
high hurdles
Refers to the track and field event with hurdles set at a high height, typically 110m hurdles for men and 100m hurdles for women.
彼は高障害で全国大会に出場した。
He competed in the national tournament in the high hurdles.
低障害 refers to low hurdles, typically the 400m hurdles event, while 高障害 is for high hurdles.
Compound of 高 (high) and 障害 (obstacle, hurdle), referring to the high hurdles event in track and field.