scholarly journals Assessment of development of adolescent volleyball players’ jumping ability

2020 ◽  
Vol 28 (2) ◽  
Author(s):  
Raini Stamm ◽  
Meelis Stamm ◽  
Madis Mets
Keyword(s):  
Vertical Jump ◽  
Development Programme ◽  
Control Group ◽  
Vertical Jumping ◽  
Volleyball Players ◽  
The Mean ◽  
Jump Ability ◽  
Experimental Group

The aim of the study was to find the influence of Prof. A. Belyayev and L. Bulykina’s a month-and-a-half vertical jumping ability development programme on adolescent volleyball players aged 12–14 years. The subjects in the experimental group were 15 adolescent volleyball players whose mean age was 12.9 years – 7 boys whose initial mean running jump result was 52.9 cm and 8 girls whose mean running jump result was 36.9 cm. The control group consisted of 13 players – 3 boys whose initial mean running jump result was 54.3 cm and 10 girls whose mean running jump result was 47 cm. The study consists of three parts; in the first part, the subjects’ anthropometric variables and running and standing jump ability were measured. Thereafter, the volleyball players of the experimental group attended a programme that lasted for 54 days, after which the children’s anthropometric variables and jumping ability were measured again. The results showed that the vertical jumping ability development programme proved effective. It improved girls’ and boys’ mean vertical standing jump result by 6.8 cm and vertical jump from attack steps by 6.5 cm. Boys improved their vertical standing jump result by 6.2 cm and vertical jump from attack steps by 7.8 cm. Girls’ vertical standing jump result improved by 7.4 cm and vertical jump from attack steps by 5.1 cm; the changes were statistically significant. In the control group, jumping ability did not change statistically significantly, considering the mean results of the groups. A. V. Belyayev and L. Bulykina’s jumping ability development programme proved to be suitable to be used in an adapted version for developing 12–14-year-old volleyball players’ vertical jumping ability.

scholarly journals Investigation of the Effect of Eight Weeks Gymnastic Training on Biomotor Skills of Children

GYMNASIUM ◽  
2020 ◽  
Vol XXI (1) ◽  
pp. 42
Author(s):  
Volkan Dönmez ◽  
Özhan Bavlı
Keyword(s):  
Significant Variation ◽  
Vertical Jump ◽  
Control Group ◽  
Ice Skating ◽  
Leg Strength ◽  
Explosive Strength ◽  
Before And After ◽  
Long Jump ◽  
The Mean ◽  
Experimental Group

The aim of this study was to research the effect on biomotor skills of adding gymnastic work to training of children receiving ice-skating education. The mean age in the study was 5.1±0.8 years, a total of 18 children volunteered to participate. The experiment group had gymnastic training in addition to ice-skating training, while the control group only participated in ice-skating training. Before and after the study, the leg strength, explosive strength, balance and flexibility skills of sportspeople were observed. The results of the study found the experimental group had significant variation in long jump, flexibility, balance and vertical jump pretest and posttest measurements (89.5±19.6 cm-100.0±13.3 cm, 7.7±4.7 cm-10.2±3.6 cm, 15.6±5.2 times-10.7±5.7 times, 15.3±6.8 cm-21.8±6.4 cm, respectively), while the control group only showed significant change for flexibility performance. In light of these results, 8-week gymnastic training can be said to be an effective method to develop explosive strength and flexibility performance.

scholarly journals Evaluation of the Effect of Core Training on the Leap Power and Motor Characteristics of the 14-16 Years Old Female Volleyball Players

2018 ◽  
Vol 6 (4) ◽  
pp. 90 ◽  
Author(s):  
Ömer Faruk Bilici ◽  
Muzaffer Selçuk
Keyword(s):  
Female Athletes ◽  
Vertical Jump ◽  
T Test ◽  
Trunk Muscles ◽  
Control Group ◽  
Average Height ◽  
Volleyball Players ◽  
Core Training ◽  
Dependent Sample ◽  
Experimental Group

In this study, it was aimed to assess the effects of core training on the vertical jump strength and some motor characteristics of 14-16 aged female volleyball players. Thirty-four female athletes playing volleyball in Van province participated in the study voluntarily. The average age of volleyball players is 15.47, the weight average is 53.66 kg and the average height is 164.29 cm. The athletes participating in the study were randomly divided into two groups as control groups (n=17) and experimental groups (n=17). Control group joined only the volleyball training. Experimental group participated in the 10-week, 3-days-a-week core training in addition to the volleyball training. Measurements were taken before and after the study. Intra-group and inter-group, pre-test, post-test values were calculated using SPSS package program. The students’ t-test was used to compare pre-training and post-training tests of control group and experimental groups. The paired sample (dependent sample) t-test was used to compare the first and last tests of both groups. Vertical jumping, upper extremity strength, lower extremity strength, strength of the trunk muscles were found to be improved and body fat percentages were found to be decreased in the experimental group. As a result, it can be said that a 10 week core training improved jumping strength and core strength.

scholarly journals Further improvement of vertical jumping performance of volleyball players through targeted plyometric training

2019 ◽  
Vol 16 (4) ◽  
pp. 951-958
Author(s):  
Mehmet Yıldız ◽  
Oğuzhan Engin
Keyword(s):  
Repeated Measures ◽  
Vertical Jump ◽  
English Summary ◽  
Control Group ◽  
Plyometric Training ◽  
Jump Performance ◽  
Repeated Measures Analysis ◽  
Vertical Jumping ◽  
Volleyball Players ◽  
Post Test

Background and Aim: The purpose of this study was to investigate the effect of jumping exercises with an overhead target on vertical jump performance of volleyball players. Method: Eighteen male volleyball players (age 21.3 ± 1.8 years, height 183.8 ± 10.0 cm, weight 78.44 ± 12.0 kg) participated in the study. The participants were divided into two groups randomly. Before the study, as a pre-test, jumping heights of all participants were measured by the Sargent method. Then, three days a week, for a total of four weeks, the control group performed 10 vertical jump exercises without targeting, while the study group performed 10 jumps with 10% more of the pretest result after the standard volleyball training. The target of a participant who reached the target three times in one session was increased by 10%. As a final test, maximal jump heights of both groups were measured again with the Sargent method. A 2X2 repeated measures analysis of variance was used to determine vertical jump height changes according to pre-test and post-test measurements of the groups.  Results: During the study, the maximal jump values ​​of the volleyball players were found to increase by 13% (55,66 ± 6,7 cm) compared to the control group (50,56 ± 7,70 cm). Conclusion: In branches such as volleyball, where jump performance is the most important determinant of success, it is suggested that exercises should be performed through an overhead target to improve vertical jump performance. ​Extended English summary is in the end of Full Text PDF (TURKISH) file.   Özet Giriş ve Amaç: Bu çalışmanın amacı baş üstü hedef göstererek yapılan dikey sıçrama egzersizlerinin voleybol oyuncularının dikey sıçrama performansına olan etkisini araştırmaktır. Yöntem: Çalışmaya on sekiz erkek voleybol (yaş: 21,3±1,8 yıl, boy: 183,8±10,0 cm, vücut ağırlığı: 78,44±12,0 kg) oyuncusu katılmıştır. Katılımcılar rastgele yöntemle iki guruba ayrılmıştır. Çalışma öncesi tüm katılımcıların ön test olarak Sargent yöntemiyle sıçrama yükseklikleri ölçülmüştür. Daha sonra haftada üç gün, toplam dört hafta boyunca standart antrenman sonrası kontrol grubu hedef gösterilmeden 10 dikey sıçrama egzersizi yaparken, çalışma grubu ön test sonucunun %10 fazlası hedef gösterilerek 10 sıçrama çalışması yapmışlardır. Gösterilen hedefe bir çalışmada 3 defa ulaşan bir katılımcının hedefi %10 arttırılmıştır. Son test olarak her iki grubunda Sargent yöntemiyle maksimal sıçrama yükseklikleri tekrar ölçülmüştür. Grupların ön test ve son test ölçümlerine göre dikey sıçrama yükseklik değişimlerinin belirlenmesi için 2X2 tekrarlı ölçümler varyans analizi uygulanmıştır. Bulgular: Çalışma sırasında hedef göstererek (55,66±6,7 cm) yapılan egzersizlerin kontrol grubuna oranla (50,56±7,70 cm) voleybolcularda maksimal sıçrama değerlerinin daha fazla arttığı (%13) tespit edilmiştir. Tartışma-Sonuç: Voleybol gibi dikey sıçrama performansının başarının en önemli belirleyicisi olduğu branşlarda sıçrama performansının geliştirilmesi için baş üstü hedef gösterilerek yapılacak egzersizler önerilmektedir.

Rorschach Characteristics in Adolescents with Systemic Lupus Erythematosus

2006 ◽  
Vol 28 (1) ◽  
pp. 100-118 ◽  
Author(s):  
J. Santoantonio ◽  
L. Yazigi ◽  
E. I. Sato
Keyword(s):  
Lupus Erythematosus ◽  
Case Control Study ◽  
Activity Index ◽  
Disease Activity Index ◽  
Female Adolescents ◽  
Control Group ◽  
Intelligence Scale ◽  
The Mean ◽  
Experimental Group ◽  
Control Study

The purpose of this study was to investigate the personality characteristics in adolescents with SLE. The research design is a case-control study by means of the Rorschach Method and the Wechsler Intelligence Scale. Study group: 30 female adolescents with lupus, 12–17 years of age. The SLE Disease Activity Index was administered during the period of psychological evaluation. Control group: 32 nonpatient adolescents were matched for age, sex, and socioeconomic level. In the Wechsler Intelligence Scale the mean IQ of the experimental group was significantly lower than that of the control group (77 and 98, respectively, p < .001). In the Rorschach, the lupus patients showed greater difficulty in interpersonal interactions, although they displayed the resources to process affect and to cope with stressful situations. A positive moderate correlation (p = .069) between the activity index of the disease and the affect constriction proportion of the Rorschach was observed: the higher the SLEDAI score, the lower the capacity to process affect. There is a negative correlation between the activity index of the disease and the IQ (p = .001): with a higher activity index of the disease, less intellectual resources are available.

scholarly journals The Impact of Game-Based, Modeling, and Collaborative Learning Methods on the Achievements, Motivations, and Visual Mathematical Literacy Perceptions

SAGE Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 215824402110035
Author(s):  
Aziz İlhan
Keyword(s):  
Collaborative Learning ◽  
Control Group ◽  
Conventional Instruction ◽  
Game Based Learning ◽  
Mathematical Literacy ◽  
Learning Methods ◽  
Learning Groups ◽  
The Mean ◽  
The Impact ◽  
Experimental Group

The present study aimed to investigate the effects of geometry instruction activities conducted in nature based on modeling, game-based, and cooperative learning methods on achievement, mathematical motivation, and visual mathematical literacy perceptions of third-grade elementary school students. The present study is a quantitative study conducted with a pre-test/post-test experimental design with a control group. The study was conducted with 61 students (35 students in the experimental group and 26 students in the control group). Modeling-, game-, and collaborative learning-based activities were conducted with the students in the experimental group. It was determined that the achievements of students who were instructed with modeling-based activities in geometry were high when compared to that of the students instructed with collaborative learning- and game-based methods, and those in the control group where no intervention was applied. This group was followed by the game-based and collaborative learning groups. Based on the variable of motivation, the mean motivation of the students in the modeling group was higher when compared to that of the students in the collaborative learning, game-based, and conventional instruction groups. This group was followed by the collaborative and game-based learning groups. Also, based on the visual mathematical literacy perception variable, the mean visual mathematics literacy perception of the students in the collaborative learning group was higher when compared to that of the students in the groups where the modeling, game-based, and conventional instruction methods were used. This group was followed by the modeling and game-based learning groups.

scholarly journals Clinical and imaging outcomes after intrathecal injection of umbilical cord tissue mesenchymal stem cells in cerebral palsy: a randomized double-blind sham-controlled clinical trial

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Man Amanat ◽  
Anahita Majmaa ◽  
Morteza Zarrabi ◽  
Masoumeh Nouri ◽  
Masood Ghahvechi Akbari ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Cerebral Palsy ◽  
Umbilical Cord ◽  
Intrathecal Injection ◽  
Control Group ◽  
Umbilical Cord Tissue ◽  
The Mean ◽  
And Control ◽  
Experimental Group

Abstract Background This study assessed the safety and efficacy of intrathecal injection of umbilical cord tissue mesenchymal stem cells (UCT-MSC) in individuals with cerebral palsy (CP). The diffusion tensor imaging (DTI) was performed to evaluate the alterations in white-matter integrity. Methods Participants (4–14 years old) with spastic CP were assigned in 1:1 ratio to receive either UCT-MSC or sham procedure. Single-dose (2 × 107) cells were administered in the experimental group. Small needle pricks to the lower back were performed in the sham-control arm. All individuals were sedated to prevent awareness. The primary endpoints were the mean changes in gross motor function measure (GMFM)-66 from baseline to 12 months after procedures. The mean changes in the modified Ashworth scale (MAS), pediatric evaluation of disability inventory (PEDI), and CP quality of life (CP-QoL) were also assessed. Secondary endpoints were the mean changes in fractional anisotropy (FA) and mean diffusivity (MD) of corticospinal tract (CST) and posterior thalamic radiation (PTR). Results There were 36 participants in each group. The mean GMFM-66 scores after 12 months of intervention were significantly higher in the UCT-MSC group compared to baseline (10.65; 95%CI 5.39, 15.91) and control (β 8.07; 95%CI 1.62, 14.52; Cohen’s d 0.92). The increase was also seen in total PEDI scores (vs baseline 8.53; 95%CI 4.98, 12.08; vs control: β 6.87; 95%CI 1.52, 12.21; Cohen’s d 0.70). The mean change in MAS scores after 12 months of cell injection reduced compared to baseline (−1.0; 95%CI −1.31, −0.69) and control (β −0.72; 95%CI −1.18, −0.26; Cohen’s d 0.76). Regarding CP-QoL, mean changes in domains including friends and family, participation in activities, and communication were higher than the control group with a large effect size. The DTI analysis in the experimental group showed that mean FA increased (CST 0.032; 95%CI 0.02, 0.03. PTR 0.024; 95%CI 0.020, 0.028) and MD decreased (CST −0.035 × 10-3; 95%CI −0.04 × 10-3, −0.02 × 10-3. PTR −0.045 × 10-3; 95%CI −0.05 × 10-3, −0.03 × 10-3); compared to baseline. The mean changes were significantly higher than the control group. Conclusions The UCT-MSC transplantation was safe and may improve the clinical and imaging outcomes. Trial registration The study was registered with ClinicalTrials.gov (NCT03795974).

Effect of Activity-Based Games on Students' Academic Achievement in Social Sciences

2021 ◽  
pp. 82-95
Keyword(s):  
Academic Achievement ◽  
Performance Test ◽  
Mean Value ◽  
Control Group ◽  
Second Phase ◽  
Initial Stage ◽  
Post Test ◽  
The Mean ◽  
Based Instruction ◽  
Experimental Group

The purpose of the research was to investigatethe effect of activity-based games on the academic achievement of graduate-level pupils in social sciences.An experimental research design with a pre-and post-test control group was used in this study. As pre-test and post-test, MCQ achievement tests containing 70 items were used as research methods for data collecting. The initial stage in this initiative was to collect data on what inspires children to learn. Both groups took a pre-test, and the results were tallied.The project's second phase was to study the effects of variousactivities on academic achievement. Both groups were given an MCQ performance test. The T-test was used to analyze the data. The findings of this study demonstrated that, compared to the control group, mostpupils'marks improved in the experimental group. The mean value showedthat experimental group participants scored 18.77on the post-test, while control group students scored 16.21. According to a post-lesson poll, most students regarded activity-based games to be more engaging than lecture-based instruction.

Examining of the Effects of Target-Oriented Circular Training on Biomotor Features by using Tennis Ball Throwing Machine at 12-14 Age Tennis Performance Sportsmen for 10 weeks

2021 ◽  
Vol 15 (11) ◽  
pp. 3174-3180
Author(s):  
Turgut Çamlibel ◽  
Mehmet Özal
Keyword(s):  
Statistical Significance ◽  
Vertical Jump ◽  
Repeated Measurements ◽  
T Test ◽  
Training Data ◽  
Control Group ◽  
Tennis Ball ◽  
Package Program ◽  
Visual Reaction ◽  
Experimental Group

Aim: In this work, it is aimed that examining the effects of target-oriented circular training on biomotoric features by using a tennis ball throwing machine at 12-14 age tennis performance sportsmen for ten weeks. Method: This research was implemented on sixteen active licensed athletes who played tennis for at least four years in Ankara. The athletes were randomly divided into two separate groups as the experimental group (n=8) and the control group (n=8). After measuring the height, weight, and fat rate of the athletes, biometric tests were started. Flamingo balance, sit-reach, reaction time, five meters and twenty meters sprints, T-test, and standing long jump tests were performed, respectively. Athletes were get heated for ten minutes before the tests and they were given a trying chance. The best scores were recorded by repeating each test twice. In the statistical analysis of the collected data, IBM SPSS 19 package program was used. In repeated measurements, the results were compared by two-way ANOVA with intergroup, intragroup and post-training data. Results: As a result, between the experimental group and control group data; on averages of T-Test (p<0.139), visual reaction (p<0.001), Flexibility (p<0.024), Vertical Jump (p<0.022), Flamingo Balance right foot (p<0.046) and left foot (p<0.045) statistical significance was confirmed. Keywords: Biomotoric features, ITN test, Tennis, Tennis ball machine

A STUDY ON THE EFFECTIVENESS OF USING ALPHABET CARDS GAME IN TEACHING VOCABULARY FOR COMMERCIAL BUSINESS ADMINISTRATION STUDENTS

2017 ◽  
Vol 1 ◽  
pp. 54
Author(s):  
Arita Destianingsih ◽  
Ari Satria
Keyword(s):  
Business Administration ◽  
Mean Value ◽  
T Test ◽  
Control Group ◽  
Business Administration Students ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
Experimental Group ◽  
Administration Students

The aim of this study was to know the effectiveness of the use of alphabet cards game as interesting tool to explain vocabularies and it make it easier to remember their meanings. This study belongs to the quasi experimental research and presents pre-test, post test and to investigate the effect of using alphabet cards game on vocabulary mastery of commercial business administration students. The participants were the students from commercial business administration students at the third semester (N=54) of State Polytechnic Bengkalis and divided into two groups. Both groups were taught vocabulary, however, the experimental group students who are exposed to alphabet cards game and the controlled group students who received conventional method. Pre-test and post-test were given to both experimental group students and controlled group students. The score of the vocabulary tests were compared through independent sample t-test. The mean value of pre-test of experimental class was 61.35, while the control class was 52.23. After learning using alphabet card games in experimental class the mean value obtained in post-test was 78.85, while in control class was 59.04.  The improved of learning outcomes can be seen from the level of significance was 0.000 and it was lower than t test 0.000<0.05.  It means that the hypothesis null is not accepted. Therefore, it can be concluded that the score of the students in learning vocabulary between the experimental group and control group was significantly different. The experimental group students who learned vocabulary using alphabet cards game had increased their vocabulary mastery.

scholarly journals Effect of Core Training Program on Physical Functional Performance in Female Soccer Players

2016 ◽  
Vol 9 (5) ◽  
pp. 115 ◽  
Author(s):  
Cengiz Taskin
Keyword(s):  
Functional Performance ◽  
Vertical Jump ◽  
Training Group ◽  
Soccer Players ◽  
Control Group ◽  
The Core ◽  
Standing Long Jump ◽  
Long Jump ◽  
The Mean ◽  
Core Training

<p class="apa">The purpose of this study was to determine the effect of core training program on speed, acceleration, vertical jump, and standing long jump in female soccer players. A total of 40 female soccer players volunteered to participate in this study. They were divided randomly into 1 of 2 groups: core training group (CTG; n = 20) and control group (CG; n = 20). The mean (SD) age was 19.05 ± 1.15 years, height was 160.60 ± 4.22 cm, weight was 56.45 ± 3.33 kg, and sport age was 4.50 ± 1.24 for the core training group; the mean (SD) age was 18.55 ± 0.76 years, height was 159.10 ± 3.86 cm, weight was 52.20 ± 3.60 kg, and sport age was 3.35 ± 0.75 years for the control group. Following randomization, the 2 groups did not differ significantly (p&gt;0.05) in any of the dependent variables. The subjects in the control group did not participate in the training and participated only in the pre- and posttest measurements. To evaluate the effect of core training over the functional performance, we applied a testing procedure that included measurements of speed, acceleration, vertical jump, and standing long jump. The core training group showed a 3.4%, 5.9%, 13.3%, 4.2% improvement in speed, acceleration, vertical jump, and standing long jump (respectively) (P&lt;0.05), whereas the control group did not change (P&gt;0.05). In conclusion, Core exercises were improved speed, acceleration, vertical jump, and standing long jump in 18-19 years-old female soccer players. Therefore, it is believed core training is necessary for optimal sport performance and should not be dismissed for all sport branches.</p>

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