What the core does in a match
Abdominal, back, and hip muscles form a functional unit. They provide the foundation for virtually every action on the pitch: stopping abruptly, turning, jumping, and positioning your body between opponent and ball in a duel.
The crucial link leads downwards. If the core gives way during a landing or a change of direction, the pelvis tilts, and with it, the knee is forced into a position it was never designed for. That is precisely why core work features in virtually every established prevention programme. You can see how strong the evidence is in the effectiveness of injury prevention programmes.
Two things are often misunderstood here.
Core stability is not a question of strength, but of control. It is not about how long someone can hold a plank, but whether they can maintain the position under disturbance. That is why every drill below includes a progression through movement.
Holding alone is not enough. If you only train statically, you practise exactly what never happens in a match. In football, the core is constantly disrupted: by opponents, by the pitch, and by your own rotation.
Six drills
Drill 1: Forearm Plank
Setup
No equipment needed, on grass or sports hall floor. Elbows vertically beneath the shoulders.
Procedure
The body forms a straight line from head to heels. Hold for 20 to 30 seconds, three sets.
Coaching point
Do not let the back sag and do not raise the hips. Keep your gaze towards the ground, otherwise the neck tilts.
Progression
Alternately raise one leg without tilting the hips. If you wobble, you held the static position for too long beforehand.
In detail
Executing the forearm plank correctly.
Drill 2: Side Plank
Setup
Side-lying position, elbow beneath the shoulder, legs extended on top of each other.
Procedure
Shoulder, hip, and foot form a straight line. 20 seconds per side, three sets.
Coaching point
The pelvis does not drop. As soon as it sags, the set is over — even after eight seconds.
Progression
Slowly lower and raise the hip, or lift the top leg.
Why
The lateral core musculature stabilises the body in challenges and during changes of direction.
Drill 3: Nordic Hamstring Curl
Setup
Kneeling position, a partner secures the lower legs. Soft surface.
Procedure
Slowly lean forward with a straight body as far as you can control it, then catch yourself with your hands. Three sets of five repetitions.
Coaching point
Brake the movement; do not simply drop. The final centimetres are the ones that count.
Progression
Shift the point where your hands catch the fall further forward, week by week.
Caution
Muscle soreness is almost guaranteed after the first session. Do not introduce this drill two days before a match. Details on the drill.
Drill 4: Single-Leg Stand with Perturbation
Setup
One leg, slightly bent knee. A partner stands alongside.
Procedure
Stand for 30 seconds while your partner applies light pushes against your shoulder or hip — irregularly, not rhythmically.
Coaching point
The knee stays aligned over the foot and does not collapse inwards. That is the entire point of the drill.
Progression
Eyes closed, on an unstable surface, or while receiving and returning passes.
Why
Comes closest to match-situation control. More on execution.
Drill 5: Lunge with Rotation
Setup
No equipment needed, sufficient space ahead.
Procedure
Step forward into a lunge, rotate the upper body towards the front leg at the lowest point, and return to standing. Ten repetitions per side.
Coaching point
The front knee stays behind the toes and does not collapse inwards. The rotation comes from the thoracic spine, not the hips.
Progression
Holding a ball with outstretched arms, later with a medicine ball.
Why
Combines leg stability with rotation — exactly the combination required when shooting and changing direction.
Drill 6: Single-Leg Glute Bridge
Setup
Lying on your back, one foot planted, the other leg extended in the air.
Procedure
Lift the pelvis until upper body and thigh form a straight line. Ten repetitions per side.
Coaching point
The pelvis remains level. If it drops to the unsupported side, the glutes are still too weak — regress to double-leg bridges.
Progression
Elevate the planted foot, or hold for two seconds at the top.
Why
The gluteal muscles stabilise the pelvis. If they are weak, the lower back takes over.
How much and when
Twice a week, eight to ten minutes each. That is the volume prevention programmes operate with. More brings little extra benefit; less has no effect.
In the warm-up, not at the end. At the end of a session, players are fatigued and execution deteriorates — and poor technique trains the exact opposite of stability. That is also precisely how the 11+ is structured.
Technique over duration. 20 clean seconds beat 60 sloppy ones. The set ends when form breaks down, not when the clock runs out.
Progress in this order: First hold the position, then add movement, then extend the holding time. Not the other way round.
By age group
Up to U11. No dedicated core training. At this age, stability develops through variety: climbing, balancing, wrestling, jumping. A child balancing on a bench trains the exact same qualities for which adults need a plank.
U13 and U15. Appropriate now, using body weight and playful formats. Drills 1, 2, 4, and 6, short sets, partner formats. During growth spurts, load tolerance is temporarily reduced — read more on this in growth phases in training.
From U17 and senior level. Full programme including the Nordic hamstring curl and lunge with rotation. This is where the work pays off most visibly, as sprinting and landing demands are at their highest.
Common mistakes
Planks only.
The anterior chain alone does not create a stable core. Neglecting lateral and posterior work leads to muscular imbalances.
Sets are too long.
After 30 seconds, hardly anyone maintains clean form. Everything after that is compensatory movement.
Ignoring execution.
Core drills look boring from the outside, which is why nobody pays close attention. Half the impact lies in coach correction.
At the end of the session.
Fatigued players exhibit poor technique. Putting it upfront is less convenient in the session flow, but considerably more effective.
Nordic hamstring curls right before a match.
Muscle soreness is guaranteed. Always introduce them early in the training week.
Core training in Coach OS
The hardest part of injury prevention is not the drill itself, but consistency across a season.
In the team settings, you set up your age group, squad size, training times, and equipment once. From this, Coach OS periodises the season across eleven main categories with six to fourteen subcategories each, weighted by age and playing standard. Stability work then appears regularly in the warm-up, instead of falling by the wayside when time gets tight during the week.
The drill database includes over 1,244 animated drills, filterable by category, age, player count, equipment, and focus area. Every session can be exported as a PDF for the assistant coach or printed out for the pitch.
Coach OS suggests. The coach decides. Always.
Conclusion
- Core stability is a question of control, not strength. What matters is position under disturbance, not holding time.
- Twice a week for eight to ten minutes, integrated into the warm-up rather than tacked onto the end.
- Anterior, lateral, and posterior chains belong together. Planks alone are not enough.
- Up to U11, dedicated core training is unnecessary; focus on varied movement instead.
- The set ends when form breaks down — not when the clock runs out.