Investigation of some parameters affecting bone quality in women's volleyball players before and post-post MATCH

The goal of this study is to analyze the level of parameters affecting bone quality before and after the game in female volleyball players; serum parathyroid, osteocalcin, insulin-like growth factor-1, calcium, phosphorus, and vitamin D. The research material consists of 16 female volleyball players between the ages of 18 and 24. The players were made to play over three sets. The data were analyzed to exhibit the pre-match and post-match differences through the tests used for comparison of means among addicted groups with the aid of the SPSS program. The conformity to normal distribution of the data was analyzed through the Shapiro-Wilk test. The data showing normal distribution were analyzed through the Independent Sample T-test and the non-normal data through the Wilcoxon test. The statistical significance was accepted as P<0.05. It was detected that in female volleyball players pre-match and post-match, there was a decrease in the levels of serum parathyroid, osteocalcin, insulin-like growth factor-1, calcium, and phosphorus, this decrease was not statistically significant (P>0.05), but caused a decrease in the level of vitamin D (P<0.0001). In conclusion, it was determined that there was no effect before and after the match in female volleyball players on the levels of serum parathyroid, osteocalcin, insulin-like growth factor-1, calcium, and phosphorus but it affected the level of the parameter vitamin D. Key Words: Volleyball, Bone Quality, Hormone, Phosphorus, Vitamin D