recruitment /rikro̅o̅t″mənt/ , 1. the perception of a rapid growth of loudness, commonly seen in sensorineural hearing losses that are cochlear in nature. The impaired ear cannot hear faint sounds but hears intense sounds as loudly as a normal ear. 2. in muscle contractions, the ability to recruit additional motor units into action as the need to overcome resistance increases and/or the ability to limit muscle fatigue during prolonged contractions.
