(BlackFitness101.com) I have had young folks ask me about sit ups and crunches like they were asking which team to bet on. They want one answer, quick and clean. Which one works better? Which one gets the stomach right faster? Which one should I do if I am just starting? I get it. When you are young, patience does not always come easy. You feel like if you put in the work today, the mirror ought to show you something by Friday. I was young once too, so I am not talking down to anybody. I am just telling the truth.
Back when I was coming up, sit ups were everywhere. Gym class, football practice, boxing gyms, living room floors, summer camps, all of that. Nobody explained much. Somebody just said, “Get down and give me twenty,” and you did it. You hooked your feet under a couch, crossed your arms, came all the way up, and hoped your stomach was doing what it was supposed to do. Some people built strength that way. Some people built bad habits too. Both things can be true.
A full sit up brings you from lying on your back to sitting all the way up. That sounds simple enough, but the body is doing more than most people think. The stomach area is working, yes, but the front of the hips gets involved too. If a young person has decent control, no back problems, and knows how to move with care, a sit up can have a place. But if that person is new, rushing, jerking, or pulling on the head, it can turn ugly fast. The neck starts straining. The lower back starts talking. The legs kick around. Then the move is not teaching strength. It is teaching confusion.
Crunches are smaller. You are not coming all the way up. You lift the head and shoulders, maybe the upper back a little, then you come back down. That short range can be a good thing for somebody learning. It gives you a chance to feel the muscles in the front of the stomach without letting the whole body jump in and take over. Done slow, it can teach control. Done sloppy, it becomes just another bad habit, so do not let the smaller move fool you either.
If a young beginner asked me straight, I would usually start them with crunches before sit ups. Not because sit ups are evil. Folks like to make everything extreme these days. One minute something is the best exercise ever, then the next minute somebody online says never do it again. I do not train like that. I look at the person in front of me. Most beginners need to learn how to brace, breathe, and move without yanking on something. Crunches make that lesson a little easier.
Now let me say this plain. If you are pulling on the back of your head, you are already messing up. I know people do it without thinking. They lace the fingers, tuck the chin, and start dragging themselves up like their neck owes them money. Stop that. Put your fingertips lightly near your ears, or cross your arms over your chest. Keep a little space under the chin. Look upward, not straight into your knees. Come up only as far as you can without forcing it. Then lower slow. That slow lowering will tell you more than the lift.
Breathing matters, and young folks love to skip that part. They hold their breath like they are underwater. Then the face tightens, the shoulders rise, and everything feels harder. Blow out as you lift. Breathe in as you lower. It does not need to be dramatic. Just do not lock the breath inside your chest. The body moves better when air is not being treated like a secret.
I have trained young men who could knock out plenty of sit ups and still had no real control. They would move fast, slap the mat with their back, pop back up, and look at me waiting for praise. I would ask, “Where did you feel that?” If the answer was neck, thighs, or lower back, then we had work to do. Numbers do not mean much when the wrong places are doing the job. I would rather see eight clean reps than thirty that look like a wrestling match.
For a young woman starting out, I would give the same advice. Do not let anybody convince you that you need to chase pain to prove you are serious. Move with care. Learn the pattern. Keep the lower back from arching all over the place. Keep the shoulders from taking over. And if something feels sharp, stop. Not every burn is good. Not every ache should be ignored. Your body is young, but that does not mean it should be treated rough.
A simple starting plan is enough. Try two sets of eight crunches. Slow ones. Rest between sets. If those feel clean after a week or two, add a few more. You can also mix in planks, dead bugs, heel taps, or seated knee lifts. That is how you build a stronger middle without depending on one move to do everything. A good core routine should not feel like punishment. It should feel like practice.
When someone is ready to try sit ups, I still want control. Do not throw the arms forward. Do not let somebody pin your feet so hard that your hips do all the work. Come up smooth. Go down smooth. If the full version makes the back feel wrong, go back to the shorter move and build more strength first. There is no shame in stepping back. That is how grown folks avoid foolish injuries, and young folks would be wise to learn it early.
Another thing young beginners need to hear is that neither sit ups nor crunches will magically melt the stomach by themselves. I know that is the part nobody likes. You can do them every night, but if you barely sleep, drink nothing but sweet stuff, eat wild all day, and never move except during a five minute routine, you may not see what you want. Core work is one piece. Walking matters. Strength training matters. Food matters. Rest matters. Stress matters too, even when people pretend it does not.
So which one is better? For most young beginners, crunches are the better first step because they are easier to learn and easier to control. Sit ups can come later if the body handles them well. That is the honest answer from an old trainer who has seen enough people rush and regret it. Start with the move that teaches you how to feel the right muscles. Then earn the bigger movement.
Fitness is not about showing off on day one. It is about learning how to build something that stays with you. Young people have energy, and that is a blessing. But energy without patience can get messy. Learn good form now. Respect your body now. Do the small things right now. Years from now, you will be glad you did not let pride coach you.
Staff Writer; Leroy Smith
I have spent more than 20 years in fitness and health education, helping people build stronger bodies and healthier habits. My work is rooted in uplifting the Black community through movement, knowledge, and long term wellness.
One may contact me at; LSmith@BlackFitness101.com.