With new signings Steven Davies and Josh Morris as part of the group, Parkinson's squad took part in a morning and afternoon session for the third day on the trot.
It would seem double sessions will be the order of the day at least until City's first pre-season friendly at Farsley Celtic a week on Saturday (11 July 2015).
With temperatures rising as the country enjoyed one of the hottest days of the year so far, the Bantams were certainly made to sweat this Wednesday as they continued their preparations for the forthcoming 2015/2016 season.
Fans can see a brief glimpse of Parkinson's men training in the sunshine by clicking on the video link below.
A longer version is available to Bantams PlayerHD subscribers by clicking HERE.