out of practice
rusty

Though out of practice, the exercise was like an old friend.

It's been a while, and I was out of practice.

He was eight years out of practice and a little rusty.

"I was on the team in college; I'm a little out of practice now."

"I may have let them out of practice a little earlier," he said.

His muscles were still hard, but he was out of practice.

If we are forced out of practice, our patients lose.

These took longer than usual; I was rather out of practice.

They must be used to that, or got out of practice.

After years in research labs, he was out of practice.