The Bruins announced Charlie McAvoy would miss at least two weeks following a procedure to treat an abnormal heart rhythm on Jan. 22. Exactly one week later, McAvoy was back at Warrior Ice Arena to ease into rejoining his team.

And the standout rookie seemed eager, equipped with a smile and coming off what he described as a “week of nothing,” mandated so he didn’t over-exert himself.

“I have no reason to think I’ll come back differently,” he said before practice Monday. “I’m still the same person. I feel good…today I’m back at the rink and able to start doing some stuff.”

“Some stuff” included skating and firing a few shots on net before the full-team practice got underway. McAvoy and general manager Don Sweeney stressed his road to full strength will revolve around how he feels.

“Charlie was 19 at the time. My boys are 19,” Sweeney said. “That’s the first thing I thought about.”

Charlie "Chuckie Bright Lights" McAvoy is back getting some work in before Bruins practice. pic.twitter.com/wR6R15IRlX

— Sara Civian (@SaraCivian) January 29, 2018

McAvoy said he had experienced his condition — supraventricular tachycardia — before, but it lasted longer than usual during the Bruins matchup with the Oilers on Nov. 26. After that, he met with Team Internist Dr. David Finn, and from there they arrived at the abnormal heart rhythm diagnosis.

He was cleared to play, and although the condition is not life-threatening, he said he needed the peace of mind to keep playing at his level — the level that regularly logs the most minutes of all Bruins defenseman and plays alongside Zdeno Chara.

“I was relieved to find out it was not life-threatening and not dangerous to my overall health,” McAvoy said. “…[but] I can’t mentally be there when it happens…I can’t play.”

McAvoy, who missed the B’s last two games before the All-Star break, is on schedule with his recovery, but Sweeney said there will be an update later in the week.