Heavy Bag Training: The Bag Doesn't Lie

Why the bag is honest

“You can get away with it on a body, you can get away with it in theory with gloves. You can’t get away with it on a bag.”

A body moves and gives. Gloves pad over mistakes. A heavy bag just sits there and tells you exactly what you did. If your wrist bent, you feel it. If you hit with the pinky knuckles, you feel it. If your shin landed short, you feel that too. The bag doesn’t care how the punch looked. It only reports how it landed.

Grade every rep

The skill isn’t hitting the bag. It’s giving yourself feedback while you hit it. Once you start dropping your hips, keeping your wrists strong, and driving, you start building gains in your own head.

Pick a set. “I’m going to do ten right in a row.” Then, after the set, grade it honestly. “How was number two? I was a little bit off. I hit a little bit with these pinkies. Look more toward these knuckles.”

Here are the questions I want you asking on every rep:

• Did I drop my hips?

• Were my wrists strong?

• Did I hit with the two front knuckles, not the pinkies?

• Did I stick hard?

• Did I recoil?

• Were my hands up?

• Did I lean?

“These are things that you should be giving yourself instant feedback on.” Ten honest reps beat a hundred careless ones. If you’re not sure what a correct punch should feel like, start with how to punch in Kyokushin and come back.

If it stings, you’re not hitting it enough

“How many people came up to the bag, maybe you didn’t hit it in a while, and you’re like, holy crap, the top of your foot stung, your shin?” Almost everyone has felt that.

My answer is direct. If that’s happening to you, you aren’t hitting the bag enough. Your hands, shins, and feet adapt to the work you give them. Come to the bag regularly, build up gradually, and the sting fades. Start lighter than your ego wants, especially on kicks. If pain lingers or gets sharper, stop and get it looked at.

Three stages of bag work

I didn’t always use the bag well either. For years I would only come to a heavy bag and think technique and thumping. That’s still where I’d tell anyone to start. Here is the progression I follow now.

Stage one: technique and thumping

Stand in front of a still bag and hit it right. Solid, deliberate shots. You want a thump, not a slap. Speed doesn’t matter yet.

Stage two: rhythm

Once I’m into a rhythm and I feel like I’m hitting it right where I want to hit it, the details start to show. On kicks, I’m hitting with the shin, and the toes are wrapping behind the bag. That’s how I know the kick landed deep with the right part of the leg. The mechanics behind that kick are in how to kick with power.

Stage three: timing and tempo

“Now the bag’s starting to move a little bit. So then what am I going to be working on now? Timing. Tempo.” The bag swings back, and you have to meet it at the right moment. Now it’s starting to feel more like a person.

From there, “I just start playing a game.” Stop the bag, then hit it as it swings back. Work one side, then the other. Make up your own rules. That’s when bag work stops being a chore and starts being training.

Stop being intimidated by the bag

A lot of people walk up to a heavy bag and freeze. “I don’t know what to do.” The answer I gave in the video was short: work the bag. Here is a simple way to structure a session if you need a starting point.

1. Warm up. Light shadow work and easy shots until your body is loose.

2. Technique sets. Sets of ten on one technique. Grade every rep.

3. Combinations. Short combinations, still grading the first and last shot.

4. Moving bag. Let the bag swing and work your timing.

5. Play. A few minutes of free work, with your hands up the whole time.

Don’t wait until you feel ready. Every session teaches you something, even the ugly ones. That’s what I mean when I say you’re in the process.

Bag work is a big part of our kick boxing classes, where karate stand-up meets boxing punches and all fitness levels are welcome. OSU.