Having the ability to use both sides of the body in sporting movements may give you the edge in performance. A soccer player who is right footed may continually try to lose an opponent by turning in the same direction. In basketball being able to change direction quickly and shoot straighter from a dynamically stable position can change the order of play, and the majority of rugby players find it easier to pass the ball from right to left rather than left to right. In endurance running, landing differently on one foot may lead to overuse injuries or there may be a stride length difference affecting efficiency of movement.
In sporting play, a shift in body weight to your dominant side may start to add a rotation of the body pulling it out of correct alignment, if continually practised these faulty movements then become a natural way to move, and can therefore start to affect your performance, as in shooting a basketball or netball and become difficult to re-train and possibly be a cause of injury from overuse of one side of the body. Decelerating to change direction will also be affected by the less dominant side and trying to stabilise the body for a shot at goal or throw.
Improving the control of your bodyweight over the centre of gravity will improve your dynamic balance and can therefore improve movement in multi directions and positioning for play. Trying to improve the difference in left and right movement within your sport can be difficult and usually doing exercises outside your sport is essential for development or correction.
Although the ideal time to develop left and right sided movement is during your childhood when the central nervous system is more adaptable to learning to improve neural connections to the muscles. It is still possible to improve bilateral movement as an adult so don’t give up.
One sided sports like tennis and cricket should be taken into consideration when training a bilateral difference. We still need to be able to move across the court or field in all directions so training the footwork is important. But spending time trying to get someone to play these sports from both sides would be detrimental to performance.
A difference between left and right dominance may just be due to a weakness and in this instance a weight routine in the gym will help. But with an ingrained faulty movement pattern a need to re-educate the neuromuscular system to react appropriately dynamically to corrected movement is required using such methods as dynamic movement skills can help improve neuromuscular control.