scholarly journals Little Leaguer’s Shoulder Caused Severe Humeral Retroversion: Ultrasonographic Analysis

2019 ◽  
Vol 7 (7_suppl5) ◽  
pp. 2325967119S0043
Author(s):  
Teruhisa Mihata ◽  
Masashi Neo
Keyword(s):  
High School ◽  
Junior High ◽  
T Test ◽  
Control Group ◽  
Baseball Players ◽  
Little Leaguer’S Shoulder ◽  
Humeral Retroversion ◽  
And Control ◽  
Dominant Side ◽  
Throwing Motion

Objectives: The increased humeral retroversion on the dominant side in throwing athletes is thought to result from repetitive throwing motion. In the previous studies, the degree of increased humeral retroversion was various, suggesting that other factors may affect humeral retroversion. Little Leaguer’s shoulder, which is rotational stress fracture of the proximal humeral epiphyseal plate, may change humeral retroversion. The purpose of this study was to investigate effect of Little Leaguer’s shoulder on humeral retroversion. Methods: Ten high-school baseball players (average, 16.6 years; range, 16 to 18 years), who had had Little Leaguer’s shoulder during elementary or junior high schools (average, 12.6 years; range, 11 to 15 years), were enrolled in the study. As a control group, 22 high-school baseball players (average, 16.9 years; range, 16 to 18 years), who have never had shoulder or elbow pain, were included in this study. Humeral retroversion was ultrasonographically measured on the dominant and non-dominant sides. Humeral retroversion was compared between dominant and non-dominant shoulders with paired t-test. Side-to-side difference in humeral retroversion was compared between Little Leaguer’s shoulders and control group with unpaired t-test. Results: Humeral retroversion was significantly greater on the dominant side than on the non-dominant side in both Little Leaguer’s shoulder (Dominant, 104°±8°; Non-dominant, 84°±12°; P < .001) and control groups (Dominant, 91°±13°; Non-dominant, 81°±10°; P < .001). The side-to-side difference in humeral retroversion in Little Leaguer’s shoulder group (20°±10°) was significantly greater than that in control group (10°±10°, P = .02). Conclusion: Humeral retroversion was increased with repetitive throwing motion without any symptom in the shoulder and elbow joint. Additional increase in humeral retroversion was made when the players had had Little Leaguer’s shoulder in elementary or junior high school.

Humeral Retroversion and Injury Risk After Proximal Humeral Epiphysiolysis (Little Leaguer’s Shoulder)

2019 ◽  
Vol 47 (13) ◽  
pp. 3100-3106 ◽  
Author(s):  
Atsushi Ito ◽  
Teruhisa Mihata ◽  
Yuji Hosokawa ◽  
Akihiko Hasegawa ◽  
Masashi Neo ◽  
...  
Keyword(s):  
High School ◽  
Junior High School ◽  
Junior High ◽  
Control Group ◽  
Baseball Players ◽  
Elbow Pain ◽  
Elbow Injury ◽  
Elbow Injuries ◽  
Little Leaguer’S Shoulder ◽  
Humeral Retroversion

Background: The increased humeral retroversion on the dominant side of throwing athletes is thought to result from repetitive throwing motion. Little Leaguer’s shoulder—a rotational stress fracture of the proximal humeral epiphyseal plate—may influence the risk of humeral retroversion and injury of the shoulder or elbow joint. Purpose: To investigate the effect of Little Leaguer’s shoulder on humeral retroversion and the rates of shoulder and elbow injuries. Study Design: Cohort study; Level of evidence, 3. Methods: 10 high school baseball players (average age, 16.6 years; range, 16-18 years) who had experienced Little Leaguer’s shoulder during elementary or junior high school (average age, 12.6 years; range, 11-15 years) were enrolled in the study. As a control group, 22 high school baseball players (average age, 16.9 years; range, 16-18 years) who had never had any shoulder or elbow injury during elementary and junior high school were included. Humeral retroversion on ultrasonographic measurement, shoulder range of motion, and rates of shoulder and elbow injuries were evaluated. Results: Humeral retroversion was significantly greater on the dominant side than on the nondominant side in both players with Little Leaguer’s shoulder (dominant, 104°± 8°; nondominant, 84°± 12°; P < .001) and controls (dominant, 91°± 13°; nondominant, 81°± 10°; P < .001). In the dominant shoulder, humeral retroversion was greater in the Little Leaguer’s shoulder group than in the control group ( P = .008). When the effects of humeral retroversion were excluded, maximal external rotation was significantly less in the dominant shoulder than in the nondominant shoulder in the Little Leaguer’s shoulder group (by 11°± 12°, P = .02), whereas no significant difference was found between dominant (110°± 11°) and nondominant (111°± 13°) shoulders in the control group ( P = .64). The rates of shoulder and elbow pain were significantly higher in the Little Leaguer’s shoulder group (shoulder pain 80%, elbow pain 70%) than in the control group (shoulder pain 9%, P < .001; elbow pain 32%, P = .04). Conclusion: Humeral retroversion was increased in baseball players without any history of shoulder or elbow injury during elementary and junior high school and was further increased in players who had had Little Leaguer’s shoulder. Increased humeral retroversion after Little Leaguer’s shoulder may be a risk factor for future shoulder or elbow injury.

Implementing Context-Based Learning in Science Instruction: A Study on Science Literacy Improvement within Topics of Earthquake and Flood

2019 ◽  
Author(s):  
Anna Farhiya Ulfah
Keyword(s):  
High School ◽  
Junior High School ◽  
Science Literacy ◽  
Junior High ◽  
Science Instruction ◽  
T Test ◽  
Control Group ◽  
Research Subjects ◽  
Treatment Research ◽  
And Control

The goal of this research is gaining description on science literacy improvement of junior high school students regarding the topics of earthquake and flood as an effect of Contextual Based Learning (CBL) implementation during science instruction. Quasi-experiment serves as the method of this study with non-equivalent control group pre-test post-test design. Jigsaw cooperative learning method functions as the control treatment. Research subjects involve 52 students of grade VII in a state junior high school in Bandung Regency, West Java. Those research subjects are divided into two classes namely experiment class and control class. The instrument used to collect relevant data is science literacy test covering aspects of science content, science competence, and attitude towards science. Two independent sample t-test is applied to analyze the comparison of science literacy improvement reached between experiment and control class. The result of statistical calculation for two independent sample t-test N-gain using version 23 SPSS software shows a significant value of 0.00 &lt; α. 0.05 for all aspects. The findings indicate that CBL implementation during science instruction within topics of earthquake and flood is proven to be valid to improve students’ science literacy compared to jigsaw cooperative model.

scholarly journals THE VIDEO LEARNING EFFECTS OF CIVIC EDUCATION TO STUDENTS KNOWLEDGE ABOUT STATE IN SATU ATAP LONTAR JUNIOR HIGH SCHOOL

2019 ◽  
Vol 2 ◽  
pp. 196-209
Author(s):  
Vina Mahdalena ◽  
Angela Efianda ◽  
Lusia Handayani
Keyword(s):  
High School ◽  
Civic Education ◽  
Junior High School ◽  
Junior High ◽  
T Test ◽  
Control Group ◽  
Visual Methods ◽  
Effective Learning ◽  
And Control ◽  
Paired T Test

This research purposed to analyze the effect of video learning of civic education about state which was manipulated by experiment group (audio visual method use video) and control group (conventional method use teacher) to gain students knowledge. The samples of the study were fourty students in Satu Atap Lontar Junior High School who had not implemented the audio visual (video) learning method. This study applied an experimental design with pretest and posttest design. The results score of experiment group pretest means are 5.35 and posttest means are 6.2. The increase of knowledge generated from this method was 8.8%, after that, we do the paired t test and did not show any significance at all. Different results were obtained by the control group, with a pretest means are 7.65 and posttest means are 9.1. The increased of this method was 19.7%, after that, we do the paired t test and show the real significant with p<.05. The conclusion that learning by conventional methods can not be completely replaced by audio visual methods. However, they can be collaborated into effective learning methods to increase students knowledge of state in rural schools, especially Satu Atap Lontar Junior High School.

scholarly journals PENGARUH PROMOSI KESEHATAN MELALUI VIDEO VLOG TERHADAP TINGKAT PENGETAHUAN TENTANG PENYALAHGUNAAN NARKOBA PADA SISWA SISWI DI SMP STRADA MARGA MULIA JAKARTA SELATAN

2018 ◽  
Vol 2 (1) ◽  
pp. 59
Author(s):  
Agnes Berlina Printina
Keyword(s):  
High School ◽  
Health Promotion ◽  
Drug Abuse ◽  
Junior High School ◽  
Junior High ◽  
Intervention Group ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Control Group Design

ABSTRAKPendahuluan: Penyalahgunaan narkoba merupakan masalah yang serius di berbagai negara bahkan di Indonesia. Keterbatasan informasi menjadi kendala kurangnya pengetahuan remaja tentang narkoba. Penelitian ini bertujuan untuk mengetahui pengaruh video vlog terhadap tingkat pengetahuan tentang penyalahgunaan narkoba pada siswa siswi di SMP Strada Jakarta Selatan. Metode: Penelitian ini merupakan quasi eksperiment dengan pre -post test control group design yang dilakukan pada Oktober 2017. Kelompok kontrol terdiri dari 52 responden dari SMP Asisi Jakarta Selatan dan 67 responden merupakan kelompok intervensi dari SMP Strada Marga Mulia Jakarta Selatan. Responden didapatkan dengan cara Total Sampling. Data dianalisa dengan Uji t-test independent dan paired sampel t-test. Hasil: Penelitian ini menunjukan terdapat perbedaan tingkat pengetahuan antara kelompok kontrol yang tidak diberikan perlakuan dan kelompok intervensi yang diberikan promosi kesehatan melalui video vlog dengan p value 0,000. Penelitian ini juga menunjukan pengaruh yang signifikan terhadap tingkat pengetahuan pada kelompok intervensi dengan video vlog  p value 0,000. Simpulan: Promosi kesehatan dengan video vlog bagi siswa dapat meningkatkan pengetahuan tentang penyalahgunaan narkoba sehingga dapat terhindar dari penyalahgunaan  narkoba. Kata Kunci: promosi kesehatan,  pengetahuan,  narkoba, vlog ABSTRACT Introduction: Drug abuse is a serious problem in many countries include Indonesia. The limitdness informations of knowledge for teenegers being obstacle. This purpose of this study was to determine the influence of health promotion through a vlog toward on the level knowledge about drug abuse at students in Strada Marga Mulia Junior High School. Method: this study is an quasi eksperiment with pre test post test control group design that alrady implemented on October 2017. The control group consist of 52 respondents in Asisi Jakarta Selatan Junior High School and 62 respondents of intervention group in Strada Marga Mulia Junior High School. The respondents obtained by total sampling. The data are analysed with independent t-test anda paired sampel t-test. Result: this study show that there is difference of knowledge’s level between control group that no treatment and intervention group that significant health promotion through vlog with p value 0,000. This study show the significant influence toward knowledge level in intervention group of vlog with p value 0,000. Conclution: health promotion with vlog for students can improve the knowledge about drug abuse, allowing can be escape by drug abuse. Keywords: health promotion, knowledge, narcotics, vlog 

scholarly journals Pengaruh penyuluhan manfaat sayur dan buah terhadap asupan zat gizi remaja obesitas siswa/siswi SLTP di Kota Palembang

2007 ◽  
Vol 4 (2) ◽  
pp. 53
Author(s):  
Yulianto Yulianto ◽  
Hamam Hadi ◽  
R Dwi Budiningsari
Keyword(s):  
High School ◽  
Junior High School ◽  
Nutrient Intake ◽  
Junior High ◽  
Vegetable Consumption ◽  
T Test ◽  
Control Group ◽  
Average Value ◽  
Significant Difference ◽  
Vegetables And Fruits

Background: Indonesia is a tropical country rich in various vegetables and fruits which are necessary for health because they contain lots of vitamins, minerals and fibers. However, Indonesian children and teenagers do not often pay attention to balanced nutrition, particularly vegetables and fruits. They even tend to choose fast food which may lead to occurrence of obesity. Prevalence of obesity among teenagers becomes an important issue because it persists to adulthood. Impact of obesity is a threat to public health and needs serious attention. Considering the important role of vegetables and fruits for health especially among obese teenagers, awareness on the necessity of consuming those needs to be made and built through nutrition counseling.Objective: The objective of the study was to identify the effects of counseling on the advantages of vegetables and fruits consumption to nutrient intake (energy, protein, fat, carbohydrate and fiber) among obese teenage students of junior high school at Palembang Municipality.Method: The study was quantitative with quasi experimental design. Subject of the study were obese teenage students of junior high school at Palembang Municipality aged 12 – 15 years old. There were 72 respondents of intervention group and 72 respondents of control group. Samples were taken using non random sampling technique. T-test was used to find out effects of counseling to consumption of vegetables and fruits and nutrient intake before and after intervention.Result: Delta average value of fruit consumption and nutrient intake (energy, fat, carbohydrate, and fiber) based on t-test analysis showed significant difference in both groups with p<0.05. Meanwhile, delta average value of vegetable consumption and nutrient intake (protein) did not show significant relationship (p>0.05).Conclusion: Counseling on the advantages of vegetables and fruits affect consumption of fruits and nutrient intake (energy, fat, carbohydrate and fiber).

scholarly journals Effect of Peer Promoters on Changes in Adolescent Smoking Knowledge and Attitudes: A School-based Intervention Study

2021 ◽  
Vol 9 (E) ◽  
pp. 1169-1174
Author(s):  
Muhammad Rachmat ◽  
Nur Arifah Arif ◽  
Sitti Andriani Anwar ◽  
Tanti Asrianti ◽  
Andi Tenri Awaru
Keyword(s):  
Test Scores ◽  
Junior High ◽  
Adolescent Smoking ◽  
T Test ◽  
Control Group ◽  
Paired Data ◽  
School Based ◽  
Post Test ◽  
And Control ◽  
Smoking Attitudes

Background: Smoking is currently a trend among youths, with the public emergence of new smokers shifting to this group. Aim:This study aims at analyzing the effect of peer promoters as communicators on the knowledge and smoking attitudes of junior high school adolescents. Methods:The quasi-experimental and non-equivalent control group designs were used. Furthermore, the respondents included 1062 students from two junior high schools in Makassar City, Indonesia, with 473 and 589 males and females, respectively. A total of 801 respondents had paired data (pre and post-test) consisting of 334 in the intervention and 467 in the control school.Paired t-test was used to measure the difference in the pretest and post-test scores of intervention and control schools. Independent t-test was used to determine  mean difference between the pretest and post-test scores between intervention and the control schools. Results:The results showed that 18.4% (n = 1062) had smoked, with subtleties of 39.4% male and 1.5% female understudies. the knowledge score increase of 0.82 (p = 0.000) and 0.22 (p = 0.004) was observed in the intervention and control schools, respectively (n = 801). The attitude score also increased by 2.23 (p = 0.080) in the intervention and 2.51 (p = 0.000) in the control school (n = 801).  Differences in the knowledge and attitude scores between both schools obtained a value of p = 0.004 and 0.766, respectively. Conclusion: education by peer promoters increase knowledge and change adolescent smoking attitudes indicated the promotion of school-based smoking behavior prevention efforts with intensive peer approach

scholarly journals METODE PEMBELAJARAN KOPERATIF UNTUK KESIAPAN BELAJAR MATEMATIKA SISWA MTS

2019 ◽  
Vol 3 (1) ◽  
pp. 10-19
Author(s):  
Nurrul Khotimah ◽  
Adi Adi Heryadi
Keyword(s):  
High School ◽  
High School Students ◽  
Cooperative Learning ◽  
Junior High School ◽  
Junior High ◽  
Mathematics Learning ◽  
Control Group ◽  
School Students ◽  
Learning Readiness ◽  
And Control

This study aimed to prove cooperative learning in improving mathematics learning readiness of Islamic junior high school (MTs) students. This research was an experimental study with 50 partisipants that devided randomly in two groups, experiment and control. The design of the experiment was a pretest-posttest control group. The experiment was engeged in cooperative learning in mathematics subject and the control group only learned mathematic subject in traditional methods. The instrument was students' readiness questionaire with reliability coefficient of 0.913. The results showed that cooperative learning methods improved the mathematics learning readiness of Islamic Junior High School students. Mathematics learning readiness is important to improved before the students learn mathematics in class.

scholarly journals PENDEKATAN PEMBELAJARAN KONFLIK KOGNITIF UNTUK MENINGKATKAN PENGUASAAN KONSEP SISWA SMA PADA TOPIK SUHU DAN KALOR

2012 ◽  
Vol 1 (2) ◽  
Author(s):  
Judyanto Sirait
Keyword(s):  
High School ◽  
Conceptual Understanding ◽  
Cognitive Conflict ◽  
Senior High School ◽  
T Test ◽  
Conventional Approach ◽  
Control Group ◽  
Temperature Method ◽  
Normalized Gain ◽  
And Control

The goal of this research is to obtain the gain of students conceptual understanding in applied cognitive conflict approach in heat and temperature. Method of the research is experiment that conducted at 10th grade in one of senior high school in Bandung. Cognitive conflict approach was used on experiment group while control group used conventional approach. Data were collected through pretest, posttest, questionaire, and observation sheet. Data was analized statistically by t-test. The result showed that normalized gain of conceptual understanding of experiment group and control group 0.57 , 0.35 respectively. It showed that average of normalized gain of experiment group is higher than that of control group significantly. The conclusion of the research was cognitive conflict approach increase students conceptual understanding. Besides that students and teachers responses gave positively.Key words: cognitive conflict, conceptual understanding

scholarly journals The Effect of Speciality Designated Core Exercises on Upper Exterimity Posture Structures of Male High School Students

2019 ◽  
Vol 7 (3S) ◽  
pp. 37
Author(s):  
Ercan Gür ◽  
Gürkan Tokgöz
Keyword(s):  
High School ◽  
High School Students ◽  
Upper Extremity ◽  
T Test ◽  
Control Group ◽  
Subject Group ◽  
Test Results ◽  
Subsequent Test ◽  
The Subject ◽  
And Control

The aim of this study is to research on the effect of core exercises on the upper extremity posture structure of young individuals. 30 male students between 16 to 18 years old studying in a high school in the province of Elazig and not doing regular sport volunteered for this study. The participants were randomly divided into two as the subject group and the control group; each group was formed with 15 people. Out of the groups formed, the subject group carried out specially designated core exercises for 8 weeks, and for 3 days each week. The control group didn't do any work; they continued their normal lives. Before and after the study, the height, weight, body mass index, bodily fat percentage, upper extremity posture(from the front, back, right and left)of the subject and control groups formed were measured and the Adams(stoop) test was applied. The data obtained were analyzed through SPSS 22.0 statistical program. For the in-group and intergroup comparisons, ındependent samples T test and paired samples T test were used. After the statistical analysis, during the initial and subsequent test comparisons of the control group, no difference was detected in measurements apart from the one for shoulders from the anterior side. Statistical differences were determined for a lot of values during the comparison of the initial and subsequent test results of the subject group and during the comparison of the differences between the initial and subsequent test results of the subject and control group. In conclusion, it was determined that core exercises made a positive impact on the upper extremity posture structures of male individuals between the ages of 16 and 18. 

scholarly journals The Effect of Teams Games Tournamenty (TGT) Models Containing Science Literacy on Student’s Learning Competencies in Respiratory System Human Material

2019 ◽  
Vol 4 (1) ◽  
pp. 115
Author(s):  
Tika Apriani Risdiyanto ◽  
Syamsurizal Syamsurizal ◽  
Relsas Yogica ◽  
Elsa Yuniarti
Keyword(s):  
High School ◽  
Respiratory System ◽  
Junior High School ◽  
Scientific Literacy ◽  
Junior High ◽  
Simple Random Sampling ◽  
T Test ◽  
Control Group ◽  
Class Viii ◽  
Learning Competencies

This research is based on the problems that exist at junior high school 28 padang, namely the learning model that is less varied, students' learning competencies are still low. Efforts that can be done are applying thelearning model teams games tournament (TGT) with scientific literacy in the  Respiratory  system material at 28 Padang Junior High School. The purpose of this study was to determine the effect of the application of thelearning model that Teams Games Tournamen (TGT) contained scientific literacy to the learning competencies of Grade VIII students of 28 SMP Negeri Padang. This research is an experimental research with randomized control group posttest only design. The study population is the students of class VIII Junior high school 28 padang 2018/2019 academic year which spread into nine classes. Sampling research using simple random sampling. The results were selected class VIII.3 as experimental class and class VIII.5 as a control class. The hypothesis in this study was tested using the t-test. The results of the study using the t-test it can be concluded that the competency of students' knowledge of the value of tcount 3,34> ttable 1.67, in the competency attitude the value of tcount is 1,84> ttable 1.67, and the competence of value skills tcount 1,85> ttable 1.67. This shows that the hypothesis is accepted. So, it can be concluded that the application of TGT models with scientific literacy can improve the competency of knowledge, attitudes, and skills of class VIII students of junior high school 28 Padang.

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