NEEDS AND POSSIBILITIES OF MINIMALIZATION OF MECHANICAL EXERTING OF LOWER EXTREMITIES DURING LANDING IN RECREATIONAL SPORTS

Abstract

Sports games are favourite form of sports recreational activities. However, positives joint together with performing them are accompanied by certain problems. Frequent injuries and pains of motion apparatus of sportsmen demonstrate this fact. The reason of this phenomena has mechanical origin - inadequate claims on motion apparatus. Rapid changes of direction and speed are namely typical for players. It is showed significantly at jumps, which are the important part of motion in sports games, mainly in volleyball. Great impact force of soles to the ground origins here. The authors of this paper investigate this problem. They choose the goal to know about reaction force of ground during the landing at sports games, factors determining its magnitude and possibilities of influencing of these factors with intention to minimalize reaction force of the ground. The results of the work supplement the knowledge of biomechanics on mechanical exerting of motion apparatus during landing. Paper brings data about the magnitude of overload during these activities. It demonstrates that activities, in which jumps are involved, present the danger of “overlimited" mechanical overload. Simultaneously it ,gives the proofs about the necessity to minimalize the reaction force of ground during the landing.