English Dictionary

chin-up

/ˈtʃɪn.ʌp/

noun

(weightlifting) (US) An exercise done for strengthening the arms and back, in which one lifts one's own weight while hanging from a bar. It can be defined more restrictively on criteria like the arms starting at lock-out, or the chin requiring contact with the bottom of the bar, or touching the neck to the bar. Palms may be facing in any direction.

He did a chin-up on the bar.

意味（1）

(weightlifting) (US) An exercise done for strengthening the arms and back, in which one lifts one's own weight while hanging from a bar. It can be defined more restrictively on criteria like the arms starting at lock-out, or the chin requiring contact with the bottom of the bar, or touching the neck to the bar. Palms may be facing in any direction.

Compare the actions of the humerus during the performance of a chin-up with supinated grip with those during the performance of a chin-up with pronated grip. Are the chin-ups alike or different with respect to muscle involvement?