82 Those refers to the redeemed saints, who were taken captive by Satan before being saved by Christ's death and resurrection. In His ascension Christ led them captive; that is, He rescued them from Satan's captivity and took them to Himself. This indicates that He conquered and overcame Satan, who had captured them by sin and death.
The Amplified New Testament renders "He led captive those taken captive" as "He led a train of vanquished foes." Vanquished foes may refer to Satan, to his angels, and to us the sinners, again indicating Christ's victory over Satan, sin, and death. In Christ's ascension there was a procession of these vanquished foes, led as captives from a war, for a celebration of Christ's victory.