a change of pace - When you're slacking off, so you switch up your speed to get

When you're slacking off, so you switch up your speed to get your lazy butt moving.

I was laying on the couch all day, so I decided to run a mile. That was my change of pace.

I was eating pizza for lunch, but then I realized I had a test. Time to switch it up.

I took a break from studying, but then I remembered I had to do my math homework. Time to get my lazy butt moving.