At the start of Monday's nearly 40-minute session, Wicks said: "I'm going to be your PE teacher for the nation", before adding that, while he thought it was just going to be for the United Kingdom, "it's turned out to be so much bigger".
Craig Shimmon, from Suffolk New College and Suffolk Rural, said: "What Joe Wicks is doing is great and as a college, we are keen to make sure everyone stays fit".
"It's not going to hold me back though, I'm not going to let you down, I'm going to be here every day".
"My 11-year-old daughter up in Glasgow just did this and absolutely loved it, thanks so much Joe, she'll see you tomorrow", Andy Downey wrote on Wicks's YouTube page, one of dozens of messages of gratitude.
"It's a workout specifically designed for kids".
"I'm going to take over".
Wicks announced last week that he would be running the sessions five days a week, Monday to Friday, pledging to "get your kids moving, feeling energised, positive, optimistic".