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A COMPARISON OF MALE AND FEMALE ADOLESCENT TENNIS PLAYERS THROUGH SELECTED EUROFIT TEST BATTERY.

Objectives

Tennis, which spreads in the international area steadily and attracts great attention, is a sports branch which has millions of viewers and players around the world. This interest has made tennis common in schools and clubs in developed countries and in our country and led it to be a part of life. The necessity of the good performance in different characteristics in different sport games has become the focus of interest of researches for football and tennis which address the large masses (Koc et.al. 2006). World Health Organization defines health as a state of mental, social and physical well-being. From this point forth, it seems important to gain the habit of playing sport in childhood and early ages. For this reason, in the R (87) 9 numbered recommendation issued by The Committee of Ministers of the Council of Europe in 19 May 1987, member countries were recommended to use European Physical Fitness tests (EUROFIT) and to take measures related to this practice in order to assess and evaluate the physical fitness of the schoolchildren from the ages of 6-7 to 16-18 (Ziyagil et.al. 1996). Eurofit test battery is a test developed to evaluate the fitness related to health for children and adults. Generally it involves the evaluation of the fitness components related to health (Oja, 1995). Eurofit tests were considered to identify the personality of children and improve the sense of responsibility, and they were successfully practiced on the age group of 6-18 (Demir, 2001). Eurofit was preferred in our study since it can be benefitted in researches to identify and evaluate the physical skills of children and since it is a product of many researches that were coordinated at an international level in a field that requires an approach of developing efficient methods that can be practiced at schools (Cah[section], 1993). Eurofit is an important component of physical skill, health and physical education. Physical education is one of the rare intramural activities that all children practice. As everyone accepts, a good physical coordination is one of the main elements in sports and physical education and it has a great contribution to a healthy and happy life. Tests related to playing sports can reveal the weak points of physical skills or general weakness, and, in this way, sport accidents can be avoided (Logoglu, 2002).

The purpose of this study is to evaluate and reveal the physical characteristics of the children of different genders between the ages of 10-12 who play and do not play tennis by Eurofit test battery.

METHODS OF THE RESEARCH Selection of the Volunteers

40 volunteers who studied at elementary schools in Kayseri and did not play tennis were included in the study. 20 male and female students between the ages of 10-12 participated in the study voluntarily. 10 male and 10 female students had tennis workout 4 days a week as the experimental group, and the other 10 male and 10 female students were the control group. The participants were informed before participating in the study, and approval forms were received from their parents. The effect of playing tennis on determining the physical differences were investigated through the selected eurofit test battery measurements in experimental and control groups.

Height and Body Weight Measurements In the height measurements of the volunteers, a measuring tape with the 0.01 cm degree of precision was used. Measurements were obtained while the volunteers are barefoot. While the measurements were taken, the heads were upright position, soles were on the floor, knees were stiff, ankles were contiguous and bodies were upright position. The body weights were measured barefoot and with minimal clothes by using a bascule with 0.1 degree of precision.

Flamingo Balance Test

The test was performed to measure the general balance. Test content was expressed as balancing on a single leg on a specific beam. The participants were asked to balance on a metal or wooden beam with 50 cm long, 4 cm high and 3 cm wide that was covered with a material (the thickness of the material should be 5 mm at most). The beam was stabilized by supports with 15 cm long and 2 cm wide. A stopwatch was used for each beam. The participants tried to keep balance on the leg that they prefer. While they were balancing on the preferred leg, the free leg was flexed at the knee towards back and the foot of this leg was held, and the position was like a flamingo. The other hand could be used for balance. The participant could hold the instructor's hand to keep balance. The test started as the instructor's letting go of the participant's hand. The participant tried to keep balance in this position. When the participant lost his balance (by letting go of the foot being held) or a part of his body touched the ground, the test and stopwatch was stopped. After each falling, the same procedures were performed again up to 1 minute. Trying number for keeping balance on the beam in 1 minute was counted. The test required 1 minute of balance on the beam except fallings.

Plate Tapping Test

This test was performed to assess the movement speed of limb, and it was based on tapping two plates using one preferred hand. There can be a table with an appropriate height or a horse that is used in gyms. Two plastic discs with 20 cm diameter were placed horizontally on the table. The distance between the center points of the discs was 80 cm (60 cm from the edges). A 10x20 cm rectangle plate was placed equidistant between both discs. A stopwatch was used during the tests. It was the score of the test that was better than the two performance of it. The score was the time period when each disc was touched 25 times. The best score should have been recorded as 1/10 sec. For example, 103 score was obtained with 10, 3 sec. If the participant failed tapping, another try was permitted in order to reach 25 taps.

Sit and Reach Test

This test targets to measure the flexibility. The subject was asked to sit and reach forward as far as possible without bending his legs. There was a test table 35 cm long, 45 cm wide and 32 cm high, and the dimensions of the upper table that was placed on the test table were 55 cm long, 45 cm wide and 35 cm high. The upper table should have been placed as its edge being lain 15 cm beyond the place that the subject rested his feet. The surface of the upper table should have been divided from 0 cm to 50 cm in the direction of the subject. The best one of the two tryingswas recorded as the result.

Standing Long Jump Test

This test measures the explosive power, and the subject jumps forward from the place where he stands without gaining speed. The equipment in this test included two judo mats or similar mats placed longwise or side-by-side on a non-slip floor, chalk and a tape measure. The subject stood behind a line as his toes being before the line. The hands were extended (as being parallel to the floor) and the knees were bent. He was asked to jump as far as possible by bounding while lifting his hands. He wastold to try to land on as both feet adjoined and standing upright. The test was performed twice in order to get the best result. The best point was accepted as the score. The result was recorded as (cm) (Kizilaksam, 2006).

Sit-up Test

Sit-up test aims to measure the Body Force (the endurance of the abdominal muscles).Total number of the correctly performed sit-ups in 30 sec was recorded as the score. Two floor mats, a stopwatch and an assistant were needed to perform the test. The subject was asked to sit on the mat, lean towards back, interlock his fingers behind the neck and bend knees at 90[degrees] angle, with the feet flat on the floor. Then, he was asked to lie on the mat and the shoulders should have touched the floor. He raised to return the sitting position in order to touch the knees with elbows. While doing these, the hands were always behind the neck. The subject was reminded to perform this exercise as fast as possible in 30 sec when he was ready. He did sit-ups until he was asked to stop. Sit-up test was performed once (Hasan, 2008).

Bent Arm Hang Test

The test targets functional endurance (the lifting power of arm and shoulder muscles). The subject was led to hang on a pull up bar by twisting arms. The equipment for this test included a round horizontal pull up bar with 2,5 cm diameter, a tool that enabled short subjects to hold the pull up bar without jumping (a chair or a box), a stopwatch, a mat under the pull up bar, cloth and chalk powder. The score was recorded as 1/10 of 1 second. For example, 17,4 seconds was 174 points (Sarac, 2012).

Handgrip Strength Test

A Grip-D hand dynamometer which could measure until 100 kg strength was used in hand dynamometer measurement method measurements. For handgrip strength measurement, dynamometers were selected according to the sizes of the objects' hands. The subject held the dynamometer using right hand as being his arm straight and having a 10-15 degree angle from the shoulder. The subject did two repetitions. Then two repetitions were done with the left hand and maximum strength was measured. The best values were recorded as measurement (iri, Baslamisli and Goksu, 2003).

Statistical Analysis

The statistical assessment of the experimental and control groups was done by using IBM SPSS 20.0 package software. The normality of distributions was tested by Shapiro-Wilk test. It was seen that distributions were normal. The descriptor was showed by arithmetic mean and standard error statistically. Independent sample t-test was used in comparing groups. Significancy level was taken as 0.05.

RESULT

There was not a statistical difference in the values of age, body weight, height and body mass index of the males in the experimental and control groups (p>0.05) (Table 1).

A statistically significant difference was found between experimental and control groups males in flamingo balance test, bent arm hang (p<0.001), plate tapping, sit-up test, relative handgrip strength (p<0.01), standing long jump and handgrip strength (p<0.05). The difference was in favor of the experimental group. There was not a statistical difference between the flexibility values of the groups (p>0.05) (Table 2).

There was not a statistical difference in the values of age, body weight, height and body mass index of the females in the experimental and control groups (p>0.05) (Table 3).

A statistically significant difference was found between experimental and control groups females in flamingo balance test (p<0.001), standing long jump (p<0.01), and sit-up test values in favor of the experimental group. There was not a statistical difference between the bent arm hang, plate tapping, flexibility values, handgrip strength and relative handgrip strength of the groups (p>0.05) (Table 4). DISCUSSION

It is seen in related studies that using eurofit tests in order to measure the physical fitness levels of children is appropriate (Resources). Physical fitness testing studies should focus on pre-adolescence and adolescence, for this reason, 10-12 age group was chosen in our study.

In this study, a statistically significant difference is found between the groups of males and females that play and do not play tennis. The difference is in favor of the groups that play tennis. In the study conducted by Bagci, a statistically significant difference was found between flamingo balance test values of the group of females at 10-12 age group who do gymnastics and that of who do not do any exercise at the same age group (Bagci, 2009). This result is similar to our study's. It is thought that playing tennis has a positive effect to the balance skills of adolescences.

When plate tapping test in the study is examined, a significant result is found in favor of the male experimental group. It is revealed that this value is not significant in females. In the study conducted on 14-16 age group by Koc, when Plate Tapping Test parameter is examined, it is seen that there is a significant difference (Koc, 1996). The values coincide with the result in males. It is thought that playing tennis contributes the manual skills of the males in this age group.

In the sit and reach test, a statistically significant difference has not been found between the groups and genders. In the study conducted by Sarac, it was reported that there was no statistically significant difference in the sit and reach test measurements of the groups before and after the training (Sarac, 2012). It is thought that the result is insignificant due to the flexibility characteristics of the female and male adolescences because of their ages. It is observed that the values that Sarac had found are similar to those we found. It is reached the conclusion that playing tennis does not contribute flexibility.

In the study, it is revealed that standing long jump values are statistically significant for both males and females. In the study titled as "A comparison of Some Physical and Physiological Parameters of Male Athletes in the Age Group of 13-15 in Individual and Team Sports" that was conducted by Koc et al., it was stated that a significant result had not found in standing long jump test (Koc et al., 2010). It is thought that tennis trainings for increasing leg strength of adolescences playing tennis caused significant results in the experimental group of our study.

When bent arm test is examined, it is found that this value is insignificant for females while it is significant for males. In the study conducted by Celebi, it was reported that there was no significant difference in bent arm hang test measurements (Celebi, 2000). It is thought that the significant resultof that males have more arm strength when compared to females is related to the increase in arm strength of the males who play tennis.

As for the values of sit-up and handgrip strength values, in this study sit-up and handgrip strength values revealed statistically significant results in favor of males, but only sit-up test values were significant in favor of females. According to the reports of the study that compared AAHPERD and NCYFS norms conducted by Erol, sit-up values of the children at the age group of 10 were between 33-34in AAHPERD and between 34-35 in NCFYS (Erol, 2011).

In his study, Mazlumogluhas revealed that there is no statistically significant difference between the data obtained in the comparison of both group amongst themselves. Mazlumoglu stated that the means of male groups and female groups were found close with each other (Mazlumoglu 2015). Studies report that strength exercises do not effect strength improvement much in this age group (Logoglu, 2002). Although it is lower when compared to AAHPERD and NCFYS, short term tennis trainings create effect on these levels and it is thought that these values will increase with long term trainings.

Consequently, playing tennis affects flamingo balance test, bent arm hang, plate tapping, sit-up test, relative handgrip strength, standing long jump and handgrip strength positively in males and flamingo balance test, standing long jump and sit-up tests are affected positively in females. However, in females, no positive effect is observed in bent arm hang, plate tapping values, handgrip strength and relative handgrip strength. In addition, there is no positive effect on flexibility values in both males and females. As a consequence of the study, it is inferred that playing tennis can provide positive contribution to some selected eurofit test battery values.

REFERENCES

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Koc H. Coskun B. Yilmaz E. Coban O. Yildiz, K. Bireysel ve takim sporlardaki 13-15 yas grubu erkek sporcularin bazi fiziksel ve fizyolojik parametrelerinin karsilastirilmasi. Mustafa Kemal Universitesi Beden Egitimi ve Spor Bilimleri Dergisi, 2010; 1: 26.

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MUSTAFA KAYA (1), NAZMI SARITAS (1) YASAR KOROGLU (2)

(1) Physical Education and Sport College of Erciyes University, TURKEY

(2) Erciyes University Institute of Health Sciences TURKEY

Email: mkaya@erciyes.edu.tr

(*) the abstract was published in the 18th I.S.C. "Perspectives in Physical Education and Sport" - Ovidius University of Constanta, May 17-19, 2018, Romania

Received 18 march 2018 / Accepted 6 may 2018
Table 1. The characteristic features of the males in the study

Variable     n   Group         [bar.X][+ or -][s.sub.x]  t       p

Age (Year)   10  Experimental   11.50 [+ or -] 0.17      -1.406  .178
             10  Control        11.80 [+ or -] 0.13
Body weight  10  Experimental   34.60 [+ or -] 0.72      -2.038  .065
(kg)         10  Control        38.60 [+ or -] 1.83
Length (cm)  10  Experimental  141.90 [+ or -] 0.90      -1.742  .110
             10  Control       147.30 [+ or -] 2.97
Body Mass    10  Experimental   17.19 [+ or -] 0.34      -.757   .459
Index (kg/   10  Control        17.89 [+ or -] 0.86
[m.sup.2])

Table 2. The physiological features of the males in the study

Variable           n   Group         [bar.X][+ or -][s.sub.x]  t

Flamingo           10  Experimental    7.60 [+ or -] 1.15
Balance Test       10  Control        13.60 [+ or -] 0.97      -3.997
Standing long      10  Experimental  143.10 [+ or -] 5.25
jump (cm)          10  Control       125.60 [+ or -] 5.55       2.291
Plate tapping      10  Experimental    7.80 [+ or -] 0.18
                   10  Control         9.71 [+ or -] 0.47      -3.799
Sit-up test        10  Experimental   16.00 [+ or -] 0.98
(number)           10  Control        12.10 [+ or -] 0.60       3.393
Flexibility (cm)   10  Experimental   23.70 [+ or -] 0.99
                   10  Control        22.40 [+ or -] 1.23       0.823
Handgrip           10  Experimental   17.10 [+ or -] 0.82
strength (kg)      10  Control        14.70 [+ or -] 0.67       2.266
Relative handgrip  10  Experimental    0.50 [+ or -] 0.02
strength (kg)      10  Control         0.39 [+ or -] 0.02       3.612
Bent arm           10  Experimental   22.19 [+ or -] 1.66
hang (sec)         10  Control        11.41 [+ or -] 2.14       3.972

Variable           n   Group         p

Flamingo           10  Experimental
Balance Test       10  Control       0.001 (***)
Standing long      10  Experimental
jump (cm)          10  Control       0.034 (*)
Plate tapping      10  Experimental
                   10  Control       0.003 (**)
Sit-up test        10  Experimental
(number)           10  Control       0.003 (**)
Flexibility (cm)   10  Experimental
                   10  Control       0.421
Handgrip           10  Experimental
strength (kg)      10  Control       0.036 (*)
Relative handgrip  10  Experimental
strength (kg)      10  Control       0.002 (**)
Bent arm           10  Experimental
hang (sec)         10  Control       0.001 (***)

(*) P<0.05, p<0.01 (**), p<0.001 (***)

Table 3. Characteristic features of the females in the study

Variable     n   Group         [bar.X][+ or -][s.sub.x]  t       p

Age (Year)   10  Experimental   11.90 [+ or -] 0.18      -0.557  0.591
             10  Control        12.00 [+ or -] 0.00
Body weight  10  Experimental   36.30 [+ or -] 1.16       1.005  0.328
(kg)         10  Control        34.10 [+ or -] 1.85
Length (cm)  10  Experimental  146.30 [+ or -] 1.76       0.978  0.341
             10  Control       143.70 [+ or -] 1.99
Body Mass    10  Experimental   16.92 [+ or -] 0.29       0.544  0.597
Index (kg/   10  Control        16.49 [+ or -] 0.73
[m.sup.2])

Table 4. The physiological features of the females in the study

Variable           n   Group         [bar.X][+ or -][s.sub.x]  t

Flamingo           10  Experimental    6.20 [+ or -] 0.51
Balance Test       10  Control        12.40 [+ or -] 1.19      -4.802
Standing           10  Experimental  151.20 [+ or -] 5.34
long jump (cm)     10  Control       128.10 [+ or -] 5.25       3.084
Plate tapping      10  Experimental    8.95 [+ or -] 0.42
                   10  Control         9.29 [+ or -] 0.41      -0.583
Sit-up test        10  Experimental   16.90 [+ or -] 3.26
(number)           10  Control         9.10 [+ or -] 1.30       2.219
Flexibility (cm)   10  Experimental   26.80 [+ or -] 0.85
                   10  Control        26.50 [+ or -] 1.30       0.193
Handgrip           10  Experimental   16.00 [+ or -] 0.87
strength (kg)      10  Control        13.30 [+ or -] 1.50       1.559
Relative handgrip  10  Experimental    0.44 [+ or -] 0.02
strength (kg)      10  Control         0.39 [+ or -] 0.03       1.422
Bent arm           10  Experimental   14.34 [+ or -] 1.25
hang (sec)         10  Control         9.22 [+ or -] 2.14       2.064

Variable           n   Group         p

Flamingo           10  Experimental
Balance Test       10  Control       0.001 (***)
Standing           10  Experimental
long jump (cm)     10  Control       0.006 (**)
Plate tapping      10  Experimental
                   10  Control       0.567
Sit-up test        10  Experimental
(number)           10  Control       0.040 (*)
Flexibility (cm)   10  Experimental
                   10  Control       0.849
Handgrip           10  Experimental
strength (kg)      10  Control       0.137
Relative handgrip  10  Experimental
strength (kg)      10  Control       0.179
Bent arm           10  Experimental
hang (sec)         10  Control       0.054

(*) P<0.05, p<0.01 (**), p<0.001 (***)
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Title Annotation:Original article
Author:Kaya, Mustafa; Saritas, Nazmi; Koroglu, Yasar
Publication:Ovidius University Annals, Series Physical Education and Sport/Science, Movement and Health
Article Type:Report
Date:Sep 15, 2018
Words:3977
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