Correct assessment of the physical and respiratory variables associated with the performance of the spike can lead to improving players’ training and developing performance strategies. The study can also contribute to achieving progress in the field of measuring and analyzing sports performance and its practical applications, Therefore, studying the relationship between physical and psychological variables has a major role in understanding whether there is a direct relationship between physical and respiratory variables and the accuracy of the spike in volleyball.

The descriptive approach was used using the correlational method to suit the nature of the research procedures. The study sample included 16 university volleyball team players, selected from the research community of 20 players. After the tests were conducted and the data was collected, it was processed statistically to reach the most important conclusions, which were built based on the results achieved from the research, the most important of which are:

1. Increasing the vital efficiency of the respiratory system has a major role in increasing the accuracy of performance in the spike skill to increase neuromuscular health.

There is a positive relationship between respiratory variables and the accuracy of the spike skill in volleyball in the research sample.