The day before Thanksgiving, you were probably thinking about doing some damage to a plate of turkey and mashed potatoes. At Headbangers Boxing Gym in Washington, brothers Lamont and Anthony Peterson had very different opponents in mind.

They’ve been preparing for Saturday, when the Walter E. Washington Convention Center will host HBO’s first live boxing event in D.C. since 1993. Lamont, 27, will take on British champ Amir Khan for the International Boxing Federation/World Boxing Association light welterweight title in the most anticipated showdown of the evening. Also fighting that night are Anthony, a 26-year-old lightweight, and 29-year-old Seth “Mayhem” Mitchell, of Brandywine, Md., who’s trying to maintain his undefeated streak as a heavyweight.

For the fighters, the holiday season won’t really begin until that night ends. There’s no taking a break from the gym when you know each missed workout makes you more susceptible to a knockout.

The rest of us are allowed to keep our guard down, considering the fiercest opponent we’re likely to face in the next few weeks is a box of peppermint bark. But if you’re looking to burn holiday calories, it couldn’t hurt to pay attention to some of their techniques and consider copying some of them at home.

So let’s head back to Thanksgiving Eve at Headbangers. The Petersons had already gone on a three-mile jog by the time I arrived and were shadowboxing to warm up. Then they alternated turns sparring in the ring — mostly with other opponents but a few rounds with each other.

Just watching the bobbing, weaving, lunging and pounding was making me sweat, so when I heard Anthony finally announce it was time for Playstation, I figured he deserved a break. When I looked around, however, there wasn’t a video-game console in sight.

Turns out the term is a cruel joke. “Playstation” is an endurance routine that strings together a series of one-minute drills with no breaks in between. That day, Anthony was apparently looking too “fresh,” so he earned three extra rounds of (1) running on a treadmill set to the highest speed and incline, (2) holding dumbbells while punching as fast as possible, (3) jumping in and out of a tire while gripping a medicine ball, (4) lifting and lowering a 30-pound kettlebell and (5) hoisting up a medicine ball and circling it around his head.

“It ain’t ever easy when you’re dealing with me,” coach Barry Hunter announced when more guys joined Anthony, who had sweated so much by that point that towels were needed to prevent people from slipping on the floor.

If that kind of training seems too punishing, try lightening up the weights and decreasing the length of the workout. With enough modifications, Hunter says, Playstation can be scaled back to almost any skill level. The point is to keep moving and use different muscles with each exercise.

Make sure you don’t tire out your midsection, however, because you still have to do your abs. Mitchell, who trains at Dream Team Boxing Gym in Clinton, Md., doesn’t have one core move. He has 600.

That’s right: His every-other-day abs routine starts with 100 crunches. That’s followed by V-ups, where you lie on your back, then bring your hands and feet off the ground until they meet. He does 40, then 35 and then 25, for a total of another 100. Next up, he lies on one side and does a side crunch so his elbow connects with his knee. “It keeps the sexy going,” says Mitchell, who completes 100 of those on the left and the right.

For the final exercise, he holds a 40-pound dumbbell in one hand by his side and bends to move the weight closer to the ground (and target his obliques). He’s not done until he has completed 100 of those on each side.

If you give this regimen a try, don’t beat yourself up if you need to start with fewer reps. Mitchell did, too.