Lions players reported for offseason workouts in Allen Park this week.
And according to safety Glover Quin, the workouts are a little more intense this year under the new strength and conditioning staff.
"A little more intense," he said. "A little more focus on certain details. It's good work. I love all the work. I've always felt like working hard is the way to go."
The new conditioning program is just one in a number of changes Lions players are adjusting to this offsesaon including life on offense after Calvin Johnson.
"Obviously, it'll be different on the field on Sunday," quarterback Matthew Stafford said Tuesday.