AGE (years)

FORCE

SPEED

ORGANIC RESISTANCE

COORDINATION SKILLS

JOINT MOBILITY

6-8

Mild intervention on muscle trophism

Progressive intervention

Psychological instability due to repetitive and prolonged commitments

Optimal age of intervention

Mild intervention

9-11

Progressive intervention on muscle trophism

Optimal age of intervention

Progressive intervention

Optimal age of intervention

Optimal age of intervention

12-14

Progressive intervention on relative strength (natural load)

It tends to stabilize and then decrease

Progressive and gradual intervention

They tend to stabilize and then decrease

Optimal age of intervention

15-16

Progressive and gradual intervention (general strength and rapid strength) with natural load and low to medium free weights

It tends to decrease

Optimal age of intervention (also specific resistance)

They tend to decrease (some)

It tends to stabilize and then decrease