Arnold Schwarzenegger is in good spirits as he recovers from heart surgery in a Los Angeles hospital.

The 70-year-old "Terminator" actor and former California governor underwent a scheduled procedure to replace a valve on Thursday. His spokesman Daniel Ketchell says he played with one of his old action movie catchphrases when he regained consciousness and announced, "I'm back."

FILE - In this Dec. 12, 2017 file photo, Arnold Schwarzenegger waves as he arrives at the Elysee Palace prior to a meeting on climate change in Paris. Schwarzenegger is recovering in a Los Angeles hospital after undergoing heart surgery. He had a scheduled procedure to replace a pulmonic valve on Thursday, March 29, 2018, according to Schwarzenegger’s spokesman. He is in stable condition. (AP Photo/Francois Mori, File)

FILE - In this Dec. 12, 2017 file photo, Arnold Schwarzenegger waves as he arrives at the Elysee Palace prior to a meeting on climate change in Paris. Schwarzenegger is recovering in a Los Angeles hospital after undergoing heart surgery. He had a scheduled procedure to replace a pulmonic valve on Thursday, March 29, 2018, according to Schwarzenegger’s spokesman. He is in stable condition. (AP Photo/Francois Mori, File)

Ketchell said Saturday in an email Schwarzenegger "continues to be doing very well, in good spirits, and recovering."

The pulmonic valve originally was installed in 1997 for a congenital heart defect and had to be replaced.

Schwarzenegger had a motorcycle crash that left him with several broken ribs in 2001. He had a hip replaced and rotator cuff surgery in 2003. He broke his right femur in a skiing accident in 2006.