Quote:(05-15) 11:17 PDT MILWAUKEE (AP) --

Ryan Lipscomb lived to tell how it felt to have a truck run over his head. "Really strange," he said.

Lipscomb, 26 of Seattle, suffered a concussion but was otherwise unhurt. He was shaken up, especially after he saw his mangled helmet.

Lipscomb, a graduate student in medical physics at the University of Wisconsin-Madison, was riding down a bike path in Madison on Friday afternoon. As he approached an intersection, he said, he noticed the oncoming delivery truck preparing to make a right turn in front of him.

The truck wasn't going to stop, Lipscomb said, so he slammed on his brakes, flipping his bike and landing in the street.

A moment later the truck rolled over his head.

"I didn't see it coming, but I sure felt it roll over my head," he told The Capital Times newspaper. "It feels really strange to have a truck run over your head."

His black helmet was flattened, tread marks visible on the cracked frame.

Lipscomb was taken to a hospital and released about three hours later.

Police initially declined to call the incident a hit-and-run, saying it was unclear whether the driver knew someone had been hit. But Sgt. Bernie Gonzalez later updated the accident report to include the designation.

Police spokesman Mike Hanson said Tuesday there haven't been any arrests because investigators haven't been able to identity the driver.

In a telephone interview Tuesday with The Associated Press, Lipscomb said he has had some lingering headaches and a stiff neck.

"All things considered, that's about as good as it can get," he said.

Despite the close call, he said, he has to focus on school because his qualifying exam for the Ph.D program is next week.

"I think it will probably hit me when I'm done with exams," Lipscomb said.

Lipscomb does plan to ride again, he just prefers to wait until after exams are over.

"After that, I'll go out and get a new helmet and be back on my bike," he said.

Quote:Ryan Lipscomb lived to tell how it felt to have a truck run over his head. "Really strange," he said.

Quote:"...but I sure felt it roll over my head," he told

Quote:his qualifying exam for the Ph.D program is next week.

Quote:Nudists could pop up anywhere, he said. "I am concerned wee don't know where they are going to strike."