• C. Wielki
  • C. Noens


Biomechanics are one of the essential factors of the quality of training thus of the level of performance. The aims must however be in relation to the needs of the subjects. These are not of the same level, they have different ages or personal ambitions. Everyone knows and must take into consideration the difference between Formation and Training. The formation level is very important. By using "Natural approach" it is possible to avoid perturbing the "Biological development." It is also the period of "Orientation" and "Specialization". The "Coach" must have at his disposal simple and sure biomedical tools in order to select, to under stand the subject, to analyze and adapt coaching. The "Prototype of the Elecrosomatograph with indirect or direct approach" was used to analyze the spinal curve of Sportsmen and Sportswomen following the "Improved Radius Method". It was shown that sports activities create changes in spinal curves which were called functional. The quest to produce a personal best record or win a Gold Medal / Ariel ISBS'94;-Science et Vie n0749/ can more than a simple adaptation of the curve create deviation and even deformation of the spinal curve eg: hyperlordosis and hyperkyphosis at all ages and sports; flattening or increase of the curves especially by Toy performance ~lavers. Those findings were arrived at on the occasion of intra and extramural competitions, training campus for national representative teams when our Labo JECO was making a research about the stages of optimal formation of collective game players which concluded that these stages could be used. Stage 1. Preliminary preparation. (from 7 or 8 years) a. Invitation phase b. Initiation phase Stage 2. Basic formation. (from 12 or 13 years) a. Apprenticeships phase b. Orientation phase Stage 3. Specialization - Training. (from 15-16 years) a. Phase of school light training. b. Intensive, Total Training. The stages are taking into consideration the biological and psychological maturation in the choice of learning and training processes and in competition. Our research and practice in the field from the lowest to the highest international top levels and laboratory work has shown the necessity of constant and intensive cooperation between the theoretical biomechanician and the specialist in the field: teacher, trainer, coach.