Physical preparation in youth football: what to train at each age and why with the ball

Endurance, speed, strength, coordination and flexibility: what football demands, which ability to develop at each stage according to FIFA, and how to tweak a ball game so it also provides a solid physical workout.

Linkalde · 2026-10-27

In youth football, “doing fitness” usually means running laps around the pitch or doing ball-free drills. But football isn’t played at a steady jog: it’s played with bursts, stops, changes of direction, duels and short pauses. Training the physical side in the academy is more about picking the right games than just running more.

What football demands

The FIFA training and physical preparation manual summarises what an adult player does in a match. He covers 10-13 km, but most of it at a slow pace. What decides the game is the intensity: 50-70 sprints at top speed, 30-50 duels and only 15-30 seconds to recover between one high-intensity action and the next.

Football is a sport of intermittent efforts: many short, very intense bursts with little recovery in between. That’s why endurance to repeat efforts and explosive speed matter more than the ability to run at a steady pace for a long time.

With the ball whenever possible

FIFA stresses that, even in physical preparation, the ball is the player’s main tool, both at elite level and in youth age groups. That doesn’t mean everything must involve the ball. You need a balance: integrated work (with the ball) trains technique, decision-making and fitness together, while separate work (ball-free) lets you control intensity better, for example in running technique or pure speed work.

Which ability to develop at each age

Not every ability is trained the same way at every age. FIFA gives clear guidelines: coordination is the top priority between 8 and 12 years; growth between 11 and 14 can disrupt it; and long-term physical preparation starts, progressively, around 12-14 years. This table brings those guidelines together:

Ages are indicative: within the same team some kids mature years earlier than others. Biological age matters more than the paperwork age, especially during the growth spurt.

Each ability, in a nutshell

Endurance

You can develop it from an early age with ball games and other sports. For 12-15-year-olds FIFA warns it’s a mistake - even dangerous - to force the group to match the pace of the most fit players: each child should run at their own tempo, and the coach watches each player’s breathing and face. A Swedish study cited in the manual uses 3v3 matches with small goals on a 33x20 m pitch as endurance work, with game/rest periods of 3 minutes playing and 2 minutes resting.

Speed

Starts, dribbling with changes of direction and sprints, but over short distances: 10-20 m for juniors. Speed and coordination are trained rested, never fatigued, because a tired nervous system doesn’t learn. That’s why they’re placed at the start of the session, right after the warm-up.

Strength

First, a general balanced base: opposing muscles (the front and back of the thigh, for example) worked equally. Start with body-weight and only later move to light loads. For kids, jumping, climbing, pushing and battling for the ball is already strength work.

Flexibility

In football you need less stretching than in gymnastics. FIFA says before puberty stretching isn’t essential, but it helps to build the habit from nine or ten years old, two or three times a week at the end of the session. Light stretches of 5-10 seconds during the warm-up and longer ones, 15-30 seconds, at the cool-down. Avoid long static stretches right before explosive efforts as they blunt performance. And the manual notes: it isn’t clear that stretching prevents injuries; a solid base of aerobic fitness does.

How to turn a game into a physical training session

With the same game you can target different physical qualities by tweaking the number of players, the space and the duration. Javier Mallo, in his book on game-based physical preparation, suggests a practical benchmark: in a possession game about 100 m² per player provides a good physical stimulus. With 16 players (7v7 plus 2 jokers) you’d need a roughly 40 × 40 m square.

Small-sided games in tight spaces involve many accelerations, decelerations and direction changes, which tax the muscles heavily. You need to dose them and avoid running them on consecutive days.

Mallo gives a short, high-intensity drill: two squads of seven on a 30 × 20 m pitch. Three from each side play 4v4 with the goalkeeper while the other three rest off-field, rotating every two minutes. This keeps the intensity max without anyone getting exhausted.

Common mistakes

• Running laps around the pitch as punishment: the child starts to associate effort with something bad.
• Doing speed sets at the end when they're already fatigued: that trains them to go slow.
• Keeping everyone to the same tempo, ignoring who’s progressed earlier or later.
• Copying adult gym exercises for kids who still haven’t mastered their own body weight.
• Skipping rest: without enough pause, a speed session turns into a stamina one.