LOCOMOTION IN GIRLS: The age at which a specific milestone in locomotion is achieved will differ from child to child.
In the preschool years, some girls may appear to be better than boys at jumping, hopping, rhythmic movement, and balance. Girls seem to enjoy games that involve these skills- hopscotch, jump rope, and dancing games- though undoubtedly differences in accounts for this to a degree.
2 years: Your child is more fluent at ball games, both catching and kicking, and can walk backward as well as forward. He can go up and down stairs without holding on, putting both his feet on each step. He can now veer and swerve while running without falling over.
LOCOMOTION IN BOYS: In the preschool years, there is little difference between boys and girls in terms of strength and speed.
Young boys may well have fewer opportunities than girls to hone jumping, hopping, rhythmic movement, and balancing skills at play. You can help by allowing your little boy as much freedom of movement as he wants. Games that involve kicking a ball, dancing, or jumping will give him practice in this skills.