If sit-ups are still the go-to core exercise at your athlete’s practice, it’s time for an upgrade. Traditional sit-ups primarily target the hip flexors during most of their range of motion, place repetitive stress on the lumbar spine, and do almost nothing to train the kind of core stability and power transfer that actually matters in sport. Young athletes deserve a smarter approach.
The exercises below are drawn from sports medicine guidance and functional strength training principles. Each one trains the core the way it gets used on the field — bracing under load, resisting rotation, transferring force from the ground up, and maintaining control through dynamic movement. Add these to any youth training program and you’ll see real payoff in speed, agility, and resilience.
Quick Answer
Young athletes get more out of core exercises that train stability, anti-rotation, and power transfer than from sit-ups. The best options include the hard-style plank, dead bug, bear crawl, Pallof press, bird-dog, single-arm farmer’s carry, and rotational medicine ball toss — all of which mirror how the core actually works in sport.
Why Sit-Ups Fall Short for Sport
The core isn’t just the abs — it’s the diaphragm, pelvic floor, deep spinal muscles, obliques, and glutes working together as a unit. Sit-ups only load a small portion of that system, and they do it through repeated spinal flexion — a movement pattern that puts stress on the lumbar discs and doesn’t show up in most athletic actions. Sprinting, cutting, jumping, and throwing all require the core to resist movement and transfer force, not curl forward.
Sports medicine professionals increasingly recommend replacing sit-ups with exercises that challenge the core to stabilize against real-world loads. The goal is whole-body movement efficiency, not isolated muscle endurance.
The 7 Moves to Use Instead
1. Hard-Style Plank. This isn’t passive resting on your elbows — it’s an active full-body brace. Dig your toes into the ground, pull your elbows toward your feet without letting them move, squeeze your glutes hard, and drive your hips into alignment. Ten to thirty seconds of this done right beats a minute of lazy planking. It teaches the core to generate and maintain full-body tension, which is the foundation of every explosive athletic movement.
2. Dead Bug. Lie on your back with arms pointing straight up and knees bent to 90 degrees. Slowly lower your opposite arm and leg toward the floor while keeping your lower back pressed flat, then return and switch sides. The dead bug targets the deep stabilizers — particularly the transverse abdominis — at the end range of motion where athletes are most vulnerable to injury. It also trains the core to resist extension under load, which is essential in contact sports.
3. Bear Crawl. From a hands-and-knees position, lift your knees just an inch off the ground and move opposite hand and foot forward in a slow, controlled crawl. The bear crawl demands rotary stability — the ability to keep the spine neutral while your limbs move in alternating patterns — which maps directly to running mechanics, wrestling, and nearly every field sport.
4. Pallof Press. Anchor a resistance band or cable at chest height. Stand sideways to the anchor, hold the band at your sternum with both hands, then press straight out in front of you and hold before returning. This is anti-rotation training at its purest. The core has to work overtime to prevent the band from pulling your torso toward the anchor. For young athletes, this is one of the fastest ways to build the lateral stability that prevents knee and hip injuries during cutting and landing.
5. Bird-Dog (Plank with Arm and Leg Extension). From a push-up plank position, lift your left arm and right leg simultaneously, hold briefly, lower with control, and alternate. This challenges balance and contralateral coordination — the same cross-body pattern used in sprinting — while building endurance in a neutral spine position. It’s accessible for beginners and scalable as athletes get stronger.
6. Single-Arm Farmer’s Carry. Pick up a single dumbbell or kettlebell in one hand, stand tall, pull your shoulder blades back, and walk with controlled posture. Resist the urge to lean toward the weight or hitch it on your hip. Carrying a load on one side forces the core to fight lateral bending with every step. This translates directly to single-leg stability in sport and builds the kind of functional strength that shows up in game situations.
7. Rotational Medicine Ball Toss. Stand in a quarter-squat stance with a light medicine ball. Load the ball back toward one hip, then drive your hips and torso to sling the ball into a wall or to a partner, letting your arms follow through in a whipping motion. This is power development, not just stability. The rotational toss trains force generation from the hips through the core to the arms — the exact chain used in throwing, swinging, and striking sports. Start light and focus on hip drive rather than arm strength.
How to Program These for Young Athletes
Young athletes don’t need a dedicated ‘core day’ — these moves work best woven into warm-ups or added as supplemental sets after main training. Two to four sets of each exercise, two or three times per week, is plenty for developing athletes. Prioritize quality over volume: a perfectly executed dead bug set builds more than a sloppy set of thirty.
Start with the plank, dead bug, and bird-dog — these build the foundational bracing patterns safely. Once those feel controlled, introduce the bear crawl and farmer’s carry. Add the Pallof press and medicine ball rotations when the athlete can maintain posture under light resistance. Progressing too fast to loaded or dynamic movements before the basics are solid is where youth athletes get hurt.
Common Mistakes to Avoid
Rushing through reps is the biggest error. Core stability exercises reward slow, deliberate movement where the athlete actively feels the muscles working — not momentum-driven repetitions. If a young athlete is racing through dead bugs or bear crawls, slow it down and reduce the range of motion before adding more reps or load.
Don’t neglect the posterior chain. Many youth programs overcorrect from sit-ups by loading the front of the core while ignoring the glutes, hamstrings, and back extensors that are equally part of the core system. Weighted bridges and single-leg hip hinges complement the exercises above and round out a balanced program. Also, avoid one-size-fits-all programming — a 10-year-old swimmer and a 16-year-old basketball player have different needs, and exercises should be adapted to the athlete’s sport, age, and current strength level.
Explore more: Training & Performance.
Core exercises for young athletes FAQs
At what age can young athletes start core training?
Bodyweight core exercises like planks, dead bugs, and bear crawls are appropriate for children as young as 7 or 8 when introduced through play and with proper coaching. Resistance-based exercises like farmer’s carries or band Pallof presses are typically introduced in early adolescence. The key is matching the exercise to the athlete’s coordination and maturity level, not a strict age cutoff.
Are sit-ups completely off the table for young athletes?
Not necessarily harmful in small doses, but they’re an inefficient use of training time compared to the alternatives listed here. Sit-ups primarily work the hip flexors through most of their range, put repetitive stress on the lumbar spine, and don’t carry over well to athletic movement patterns. The exercises in this guide train the core in more functional ways and deliver better sport-specific results.
How long before young athletes see results from these core exercises?
Most young athletes notice improvements in posture, balance, and movement control within a few weeks of consistent training, since youth neuromuscular adaptation is rapid. Strength gains that translate visibly to sport performance — more explosive cuts, better landing stability, stronger throws — typically become apparent within one to two training cycles of consistent work.
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Photo by Jonathan Borba on Unsplash.