Purpose: In this study, the relationship between the joint range of motion, and the serve speed and hit rate of tennis players was examined. The voluntary participants of this study are tennis players in the university tennis team. Materials and Methods: Twelve male students aged 18-25 voluntarily participated in the study. Participants were individuals, who professionally played tennis with a license. Certain parameters of the participants such as the upper extremity joint range of motion, extension and flexion angles of the elbow joint, abduction angle of the shoulder joint, and flexion and extension angles of the wrist were measured through standard plastic 12 goniometers. Similarly, the hit values were examined via the Revised Dyer Wall Test and serve speed values were examined by using the Stalker solo 2 brand radar. Pearson correlation analysis was used to examine the relationship between the joint range of motion and the serve speed and hit rate of the participants. The values below p <0.05 were considered as significant. Results: In the study, it was determined that there was a moderate positive correlation between wall test and shoulder abduction (p <0.05, r =, 599); similarly, there was a high positive correlation between wall test and wrist extension (p <0.05, r = 671); there was a high positive correlation between wall test and wrist flexion (p <0.05, r = 638); there was a high positive correlation between abduction of the shoulder and wrist extension (p <0.05, r =, 603); there was a very high positive correlation between wrist extension and wrist flexion (p <0.001, r = 819), and it was determined that there was no significant relationship between the other parameters (p> 0.05). Conclusion: In conclusion, in this study, it was determined that the joint range of motion has a positive relationship with both serve speed and hits.

Purpose: The aim of this study is to examine the impacts of existence or absence of musculus palmaris longus (MPL) on serve speed and certain motoric properties in the tennis players. Material: In the study, 25 male volunteers participated, who are playing tennis at university level and in whom the existence of musculus palmaris longus was checked. The ages of volunteers, who participate in tennis activities under licenses, vary between 18 and 25 and they have no disability or illness in the upper extremity. The experimental group (n=7) is comprised of individuals, who do not have musculus palmaris longus, while the control group (n=18) is comprised of individuals having musculus palmaris longus. Results: The age averages of the groups participating in the study was 21, 89±2, 246 years old for the group with musculus palmaris longus, while it was 22, 00±2, 517 years old for the participants without the musculus palmaris longus; as per their average height, it was 174, 94±5, 713 cm for the group with the musculus palmaris longus, while it was 174, 71±3, 546 cm for the participants without the musculus palmaris longus; the body weight average was 70, 83±5, 79 kg for the participants with musculus palmaris longus, while it was 72, 14±4, 059 kg for the participants without the musculus palmaris longus; sports-age average was 13, 00±1, 645 years for the ones with musculus palmaris longus, while it was 12, 29±1, 380 years for the participants without musculus palmaris longus. It was determined that there was statistically significant difference for the serve speed (p<0, 001) and the hand flexion strength (p<0, 05) parameters of the participants; however, there was statistically no significant difference (p>0, 05) in other parameters. Conclusions: As the conclusion, existence of musculus palmaris longus in tennis players positively influences the hand wrist flexion strength, however, it negatively influences the serve speed.

Background and Study Aim:The aim of this study was to examine the effect of leg and back strength on serve throwing speed and agility of 19-23 year old male tennis players who are studying at university. Material and Methods: Twelve male tennis players, aged between 19 and 23, who were studying at university in Kayseri participated in the study voluntarily. Individuals who played tennis for at least 5 days per week participated in the study and leg and back strength measurements and their relation with the serve and agility were compared. Results: In the study, leg strength test, back strength test, agility test and serve throwing speed tests were applied to the subjects. These tests reveal a significant relation between back strength and serve throwing speed (R=,660, R2=,435; p<,050). When the t-test results on the significance of the regression coefficient are examined, it is seen that back strength level (t=2,774, p = ,024) affects serve throwing speed and explains approximately 43% of the total variance. There is a significant relation between leg strength and serve throwing speed (R=,586, R2=,343; p<,050). When the t-test results on the significance of the regression coefficient are examined, it is seen that leg strength level affects serve throwing speed and it explains approximately 34% of the total variance. Conclusions: As a consequence, it has been revealed that leg strength and back strength in tennis players have a statistical relationship with agility and serve throwing speed. For this reason, it is considered necessary to apply training programs to improve leg and back strength in trainings.