Peterson ran last week for the first time since having surgery to repair his ACL and impressed Vikings coach Brad Childress.
"Did a great job," Frazier said, via Tom Pelissero of ESPN 1500 Radio. "Everybody was impressed. Our trainer, Eric Sugarman, was really impressed with his movement and the things he was able to do. He’s on schedule. He’s doing well."
Peterson, 27, failed to reach 1,000 yards rushing for the first time in his five-year career last season. He played in just 12 games before going down with a left knee injury, racking up 970 yards on 208 carries to go along with 12 touchdowns.