When doing a standing start, the front leg is a fraction behind the line. The rear leg is a foot behind, slightly to the side of the front. The opposite arm to the leading leg is well extended forward, and the rear arm well back and raised high. Some of the standing-start techniques used by runners contravene every one of Newton s Laws of Motion, centre of mass, and action and reaction. Needless to say, all run-up techniques require speed.
Speed is a combination of good technique, flexibility and strength.
Six seconds for young athletes is poor , but good for over 40s. Under 5.5 secs is fair for the young and outstanding for vets. Under 5 secs is good for youngsters and incredible for vets. With straight legs in front in a sitting position, you should at least touch your toes, better still is to go several inches beyond. The most important strength parameter are your legs.