Relationship between serve speed and performance of different motor test results

Dobos, Károly and Tóth, Péter János and Ökrös, Csaba (2022) Relationship between serve speed and performance of different motor test results. MAGYAR SPORTTUDOMÁNYI SZEMLE, 23 (100). pp. 19-26. ISSN 1586-5428

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Abstract

The continuous monitoring and the development of the reactive strength of junior tennis players require standardized field tests and training exercises that model force and movement pattern of serve execution well. The aim of our research was to examine the correlation of the one-hand overhead throw (OBT) or two-hand overhead medicine ball throw (OMBT) with serve speed (SS) to aid a more effective performance improvement; furthermore, to estimate SS, using simple field tests based on regression models. 142 male (age: 15.55±1.20) and 115 female (age: 15.65±1.19) tennis players participated in the research; they executed three different (OBT, OMBT and SS) field tests. To find the correlation between performance at the field tests and the SS, the parametric Pearson’s correlation analysis was used. Furthermore, simple linear regression analysis was used originating from the collinearity problem, to be able to analyse the effects of the predictor variables (reactive strength during the OBT and OMBT tests) on the dependent variable (SS). Significantly large and very large positive correlations were observed between SS and different ball throws (OBT, OMBT) in both genders (r=0.67-0.89; p˂0.05). Coefficient of determination (R2) values indicated that distance of OBT explained 68-80% of the variance of SS in both genders. Moreover, distance of OMBT explained 45-78% of the variance of SS in both genders. The results showed that motor tests measuring reactive strength of unilateral and bilateral movement forms can be well applied for monitoring the reactive strength of tennis players and can be used well during the preparation period as a means of training.

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