Percentage of the quantitative contribution of neuromuscular coordination of the upper and lower extremities, concentration of attention, and perception of the depth of visual vision to the accuracy of smashing the volleyball among students of the College

Abstract

Abstract

  The researcher’s problem was to answer the following question: What is the contribution and relationship between neuromuscular coordination of the upper and lower extremities, concentration of attention, and perception? Depth of visual vision with accuracy of smashing the volleyball. The most important objectives were to identify the contribution rate of neuromuscular coordination, concentration of attention, and depth of visual vision to the accuracy of hitting a volleyball smash among the research sample. As for the most important hypotheses, there were high contribution rates for neuromuscular coordination, concentration of attention,  The sample and research community were represented by third-year students at the College of Physical Education and Sports Sciences at Al-Muthanna University, numbering (77). As for the research sample, the research sample was taken in a simple random way, as their number was (30), that is, a representative of the community by (39%). After conducting the exploratory experiment to confirm the scientific foundations and conducting the main experiment, the researcher presented, analyzed and discussed the results and then reached conclusions, the most important of which is realizing the depth of the vision. It has a very high relationship with the accuracy of smashing the volleyball among the research sample. The most important recommendations were to emphasize motor accuracy exercises with training methods that are appropriate to the physical and skill potential of the sample to obtain motor experience