Method of the height of the horse x 1:07
This method is derived from research conducted by American Hamley and Thomas in 1967, Nordeen and Cavanagh in 1975.
These authors have analyzed the metabolic efficiency was obtained at different heights of the saddle, with monitoring of VO2 max. By calculating the height of the saddle as the distance to the top of the pedal itself (anatomical center, located at 12 centimeters from the rear edge of the seat itself), with the crank aligned with the extension of the seat tube, the researchers found that the best performance metabolic (relation between energy expenditure and Watt developed) were obtained with a height of the saddle that was 107% of the height of the horse of the athlete. Always the same studies had detected an optimal range of the height of the seat between 106 and 109% of the height of the horse. Subsequent studies have also finally confirmed the value of 107%.
This is one of the first scientific methods, which are still current and valid. It's a system, even relatively simple to calculate and accurately. The height of the saddle, so calculated, is optimal for optimal mechanical efficiency, while subsequent studies (which we will) have proposed to limit the height of more physiological load on the knees. In general, with a view to determining the saddle that allows the best possible performance, a good way. Some limits can be found in the fact that being a mathematical method takes no account of the subjective differences in joint mobility, flexibility and muscular diseases. Again, in this system, are not considered their shoes and pedals, whose differences (height soles, cleats, pedals and deep coupling) leads to a variation of the distance between the foot and support to the seat not quite negligible. This problem arises because at the time of the study of modern pedals were not born yet, but it is easy to circumvent by calculating the measure starting from the edge of the pedal but not from inside the shoe.
Method Hinault and Lemond
The two famous cyclist Greg Lemond and Bernard Hinault, have come to similar considerations on the determination of the height of the saddle, after extensive studies and tests conducted during their long racing career. Especially the system Hinault is now widely used in centers because biomechanical lends itself well to a "computerization" of the definition of the height of the saddle. This is determined by calculating the distance between the anatomical center of the saddle and the center of bottom bracket, this value corresponds to the length of the horse multiplied by 0885 to 0883 for Lemond or Hinault. The distance should be measured then reduced to 2.5 mm or 5 mm with the use of cranks, respectively, 172.5 mm and 175 mm.
As said Hinault method is still valid and widely used, the value of Lemond leads to a result almost coincides with Hinault. Both systems, then, lead to the saddle height intermediate between the method of 107% and others that rank high in the saddle even more. How valuable addition to the excellent biomechanical efficiency, has the ease of calculation and determination of the saddle height is not particularly critical in terms of occurrence of any disease or articular ligament. The flaw, in this case is that no account is taken of any joint and mobility problems caused by the different height shoes, cleats and pedals. Again, noting that greater height which involves the whole pedal (center axis) + shoe (sockliner), you can increase the height of the seat of the value so as to obtain a correct measure and close as theorized by the two great professionals.