Michigan assistant coach Mike Hart is back in Ann Arbor and "trending in a positive direction" after being carted off the field during the first quarter of Saturday's game against the Indiana Hoosiers, he said in a statement Monday. 

Hart, who returned to Michigan in 2021 as run game coordinator and running backs coach, suffered a medical emergency on the sideline before being taken off the field and transported to Indiana University Hospital. 

Mike Hart is carted off the field during a Michigan game

Michigan Wolverines running back coach Mike Hart is carted off of the field during the first half against the Indiana Hoosiers at Memorial Stadium on October 8, 2022 in Bloomington, Indiana.  (Michael Hickey/Getty Images)

It was unclear what caused Hart’s condition, but according to reports at the time, he suffered a seizure. 

MICHIGAN COACH TAKEN TO HOSPITAL AFTER REPORTEDLY SUFFERING SEIZURE DURING GAME

"I would like to thank everyone for their support, messages, and prayers," Hart wrote in a statement Monday. "I am truly grateful for the trainers and paramedics, the doctors and nurses at IU Hospital, Michigan’s team doctors, coaching staff, players and coach Harbaugh. I would also like to thank IU’s football staff and team doctors. I will never forget everyone’s kindness and generosity."

Michigan players gather around coach Mike Hart

Michigan Wolverines players and coaches watch as medical attention is given to running backs coach Mike Hart after he collapsed on the sideline during a college football game against the Indiana Hoosiers on Oct. 8, 2022 at Memorial Stadium in Bloomington, Indiana.  (Joe Robbins/Icon Sportswire via Getty Images)

"My wife and I are thankful to be surrounded by such incredible people." 

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Hart said he was "trending in a positive direction" and added that he looks forward "to rejoining our team soon." 

Quarterback J.J. McCarthy said the Wolverines awarded a game ball to Hart after defeating the Hoosiers, for whom Hart served as a running backs coach from 2017-2020, 31-10. 

Blake Corum #2 (L) and Assistant Coach Mike Hart (R) of the Michigan Wolverines are seen during the second half of a college football game against the Hawaii Rainbow Warriors at Michigan Stadium on Sept. 10, 2022 in Ann Arbor, Michigan. The Michigan Wolverines won the game 56-10 over the Hawaii Rainbow Warriors. 

Blake Corum #2 (L) and Assistant Coach Mike Hart (R) of the Michigan Wolverines are seen during the second half of a college football game against the Hawaii Rainbow Warriors at Michigan Stadium on Sept. 10, 2022 in Ann Arbor, Michigan. The Michigan Wolverines won the game 56-10 over the Hawaii Rainbow Warriors.  (Aaron J. Thornton/Getty Images)

"We’ll move on with humble hearts. It’s great to have the win and continue to pray for Mike. He’s a strong guy, I have all the faith in the world in Mike Hart," coach Jim Harbaugh said after the game. 

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Hart, 36, is the all-time leading rusher in Michigan football history, where he was a four-year starter between 2004-2007. He was drafted by the Indianapolis Colts in 2008, where he played three seasons.

The Associated Press contributed to this report.