Arnold Schwarzenegger has said he is “good” but “not great yet” after heart surgery.

The 70-year-old Terminator actor and former California governor released a short video on Twitter updating his condition and thanking people for their support.

Schwarzenegger says he is feeling better, but is “not great yet”.

He was seated at a chessboard, which he says he uses to freshen his mind and memory.

Thank you all for caring. We are moving forward! pic.twitter.com/kvauldg3Mq

— Arnold (@Schwarzenegger) April 12, 2018

Schwarzenegger underwent a scheduled heart procedure on March 29 because a pulmonic valve originally installed in 1997 for a congenital heart defect had to be replaced.

He was released from Cedars-Sinai Medical Centre in Los Angeles on April 6.