Why runners run counterclockwise?

1912, the IAAF set up, suddenly raced clockwise direction to the left as unified as the inside, namely a left turn,   nike free run latest and included in the IAAF rules, still in use. Why is this? In this regard the parties debated.

Heart Speaks: Heart in his left side, so the center of gravity is easy to left. People doing jumping action, hopping from foot mostly because the center of gravity tend left foot, so easier to turn left.

Left leg is stronger than the right leg, said: still use spears shield when it was discovered that the left side of the body injured mortality ratio greater than on the right (the heart of the left), nike 3.0v4 run shoe so people are left with shield, right hand with spears, long-term leads to the right hand stronger than the left hand. But people should be symmetrical, which led to his left leg is stronger than the right leg. So when people walk, move left leg stepping right leg slightly longer than the distance between the body slightly tilted to the left, thus forming a counter-clockwise direction.

Right foot is stronger than the left leg, said: man left a supporting role (supporting gravity), the role of the right foot from the movement (direction and speed control). Because the center of gravity somewhat left foot, right foot so the ground to increase speed. In general, the right-hand and left-hand and left foot right foot effort than large, and thus many footballers play with his right foot on the runway while running big effort on the outside of his right foot.air max 1 A person blindfolded and let him walk straight, which in all likelihood people will go into the left bend of the arc, which is the strength of his right foot big reason.

Coriolis force, said: Earth's rotation process because of inertia caused by a so-called Coriolis force. In the northern hemisphere the Coriolis force is right, it will allow the water to flow down the vortex formed when counterclockwise; just the opposite in the southern hemisphere is counterclockwise. IAAF regulations run counter-clockwise, because most of the game was held in the northern hemisphere, air max 90 sport shoes if you do not follow the Coriolis force, then the body vulnerable to centrifugal force and Coriolis force uneven injured.

Physicists say: We humans are mostly right-handed, you can easily run counter-clockwise right-handed. Right foot in front, sideways inward when people feel more comfortable, more strength, more easily than the clockwise direction to maintain balance.

USA "Life Science", said: Physicists say insufficient training, such as dogs and horses likewise did not hand down the animal ran counter-clockwise, and even seated racers have taken this habit. Actually counterclockwise just look more natural, runners ran, when more people can watch (when viewed from left to right are), nike air max 95 shoe especially those responsible for the track, stadium management, timing and record man of the match .