Comparative analysis of the results of tensographic indicators of landing and imitation of repulsion in jumpers of ski jumping, taking into account anthropometric features

Relevance. In ski jumping, morphological indicators of athletes and indicators of the force of pressure on the support become a guideline for increasing the efficiency of repulsion and takeoff. However, there is no information in the available sources about the influence of individual anthropometric data on the manifestation of the power characteristics of repulsion of ski jumpers. The actual purpose of the paper is to study the tenso-graphic parameters of landing and imitation of repulsion in ski jumpers with various anthropometric data. Research methodology. The study was conducted among 12 qualified ski jumpers aged 20-30 years (KMS, MS, MSMC). It included the analysis of tensograms of the APC "COBBS" and their comparison with the position of the athlete using the Kinovea software. The results of the study. From the point of view of the distribution of pressure forces on the support, the correct fit and the beginning of repulsion are characterized by uniform foot loading. Throughout the entire contact phase of repulsion, the body must be in a free state. The tension of the fit is reflected on the tensogram in significant fluctuations in body weight in the heel-toe direction. The main anthropometric indicators that have a high correlation with the result of competitive activity of ski jumpers are hip length and trunk length. A significant difference was revealed between the strain gauges of athletes in groups with a hip-trunk index of less than 5 cm ("low") and more than 5 cm ("high"). In athletes with a high index, changing the position of the arms behind the back leads to alignment and improved landing stability. The total forces during the simulation of repulsion increase evenly. In athletes with a low index, the shapes of tensograms do not depend on the position of the hands during landing and imitation of repulsion. Such athletes are recommended to adhere to the traditional approach to landing with their arms straightened along the body.