scholarly journals Analisis biomotor kecepatan reaksi pada pemain bola voli kelas khusus olahraga Daerah Istimewa Yogyakarta

2021 ◽  
Vol 9 (2) ◽  
pp. 246-255
Author(s):  
Fauzi Fauzi ◽  
Riky Dwihandaka ◽  
Okky Indera Pamungkas ◽  
Muhamad Nanang Silokhin
Keyword(s):  
High School ◽  
Special Class ◽  
Data Retrieval ◽  
Good Health ◽  
Whole Body ◽  
Reaction Test ◽  
Volleyball Players ◽  
Reaction Speed ◽  
Special Region

Empat puluh tiga pemain yang berlatih di Sekolah Menengah Atas Kelas Khusus Olahraga Daerah Istimewa Yogyakarta berpartisipasi dalam penelitian ini. Pengambilan data telah disetujui oleh pelatih dari sekolah tersebut. Para pemain dalam kondisi sehat saat melakukan tes. Sebelum melakukan tes, pemain mendapatkan penjelasan tentang penelitian ini.  Instrumen yang dipergunakan dalam pengambilan data untuk mengetahui kecepatan reaksi seseorang diukur dengan menggunakan tes whole body reaction. Setelah data diperoleh kemudian dianalisis dengan membandingkan data dengan norma instrument tes whole   body   reaction. Kemudian setelah itu dicari prosentase kategori kecepatan reaksi yang dimiliki oleh pemain Kelas Khusus Olahraga Bola Voli di D.I. Yogyakarta. Dari hasil pengukuran yang dilakukan ditemukan bahwa terdapat 30% dari pemain bola voli di Kelas Khusus Olahraga Yogyakarta memiliki kecepatan reaksi yang masuk dalam kategori bagus sekali, 63% termasuk dalam kategori bagus, dan 7% dalam kategori cukup. Hasil ini tentu tidak akan terlepas dari banyak faktor yang mempengaruhi kecepatan reaksi yang dimiliki oleh seseorang.Biomotor Analysis of Reaction Speed in Players of Special Class volleyball in Yogyakarta Special Region AbstractForty-three players who trained at the Yogyakarta Special Sports Class High School participated in the study. The data retrieval has been approved by the school's trainer. The players are in good health when conducting tests. Before conducting the test, the player gets an explanation about this study.  The instrument used in data retrieval to determine the speed of a person's reaction is measured using the Whole Body Reaction test. After the data is obtained then analyzed by comparing the data with the instrument norms of whole body reaction test. Then after that sought percentage of reaction speed category owned by players special class volleyball sports in D.I. Yogyakarta. From the results of the measurements, it was found that 30% of volleyball players in Yogyakarta Sports Special Class had reaction speed that falls into the category of very good, 63% belongs to the good category, and 7% in the category of enough. These results will certainly not be separated from many factors that affect the speed of reaction that a person has.

Descriptive Analysis of Coach Augmented Feedback Given to High School Varsity Female Volleyball Players

1988 ◽  
Vol 7 (4) ◽  
pp. 289-301 ◽  
Author(s):  
Regina Markland ◽  
Thomas J. Martinek
Keyword(s):  
High School ◽  
Multivariate Analysis ◽  
Descriptive Analysis ◽  
Augmented Feedback ◽  
Skilled Performance ◽  
Dependent Variables ◽  
Volleyball Players ◽  
Analysis System ◽  
To Receive

This study examined the nature and amount of feedback that more successful and less successful high school varsity volleyball coaches gave to their starting and nonstarting volleyball players. Two of the four coaches studied were considered more successful and two were considered less successful, based on previous regular season win-loss percentages. Players of all the coaches (N=41) were also used as subjects and identified as having either a starting or nonstarting role on the team. All subjects were observed on three occasions for 30 minutes per observation during regular season practice. The Cole Descriptive Analysis System (Cole-DAS) was used to observe coach augmented feedback as it was given to individual players in response to skilled performance. A 2 × 2 multivariate analysis of variance was used to describe the effects of (a) success of the coach, (b) role of the player, and (c) both success of the coach and role of the player on the dependent variables of coach augmented feedback. Results indicated that successful coaches varied considerably from less successful coaches in the types of feedback given to their players. Starting players were also found to receive significantly more audio, audiovisual, and immediate terminal feedback than nonstarting players.

scholarly journals An analysis of pre-season risk factors for low back injury in high-school baseball pitchers: a prospective study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kurumi Nakase ◽  
Hitoshi Shitara ◽  
Tsuyoshi Tajika ◽  
Takuro Kuboi ◽  
Tsuyoshi Ichinose ◽  
...  
Keyword(s):  
High School ◽  
Shoulder Function ◽  
Whole Body ◽  
Back Injury ◽  
Low Back ◽  
Shoulder Range Of Motion ◽  
Low Back Injury ◽  
Significant Independent Risk Factor ◽  
Elbow Injuries ◽  
Baseball Pitchers

AbstractPitching motion requires whole-body coordination; therefore, poor control of the lower extremities, pelvis and trunk may cause shoulder and elbow injuries. However, few studies have described the relationship between the shoulder joint function and low back injury in high-school baseball pitchers. A total of 128 healthy high school pitchers underwent pre-season medical checkups, where their shoulder range of motion and shoulder strength were measured. The participants completed a self-recorded daily questionnaire regarding the presence of low back pain. Pitchers were divided into injured and non-injured groups. Low back injury was observed in 13 participants (13.4%). In the injured group, horizontal adduction on the dominant shoulder was significantly less than in the non-injured group. A logistic regression analysis showed that horizontal adduction on the dominant side was a significant independent risk factor for low back injury during the season. It is important to recognize that restriction of the shoulder function not only causes shoulder and elbow injuries but can also risk low back injury.

A Training Program to Improve Neuromuscular Indices in Female High School Volleyball Players

2011 ◽  
Vol 25 (8) ◽  
pp. 2151-2160 ◽  
Author(s):  
Frank R Noyes ◽  
Sue D Barber-Westin ◽  
Stephanie T Smith ◽  
Thomas Campbell
Keyword(s):  
High School ◽  
Training Program ◽  
Volleyball Players ◽  
Female High School

Prophylactic Ankle Brace Use in High School Volleyball Players: A Prospective Study

2010 ◽  
Vol 31 (4) ◽  
pp. 296-300 ◽  
Author(s):  
Carol Frey ◽  
Keith S. Feder ◽  
Jill Sleight
Keyword(s):  
High School ◽  
Prospective Study ◽  
Ankle Brace ◽  
Volleyball Players ◽  
A Prospective Study

Effect of Acute Exposure to Whole-Body-Vibration on Vertical Jump in Senior Athlete Volleyball Players

2006 ◽  
Vol 38 (Supplement) ◽  
pp. S240
Author(s):  
Jeffrey Brent Feland ◽  
Ty Hopkins ◽  
Iain Hunter ◽  
James D. George
Keyword(s):  
Vertical Jump ◽  
Whole Body Vibration ◽  
Acute Exposure ◽  
Whole Body ◽  
Body Vibration ◽  
Volleyball Players

Coaching Preferences of High School Girl Volleyball Players

1993 ◽  
Vol 77 (3_suppl) ◽  
pp. 1309-1310 ◽  
Author(s):  
Peter A. Hastie
Keyword(s):  
High School ◽  
Positive Feedback ◽  
The Other ◽  
School Girl ◽  
High School Girl ◽  
Significant Difference ◽  
Volleyball Players ◽  
Main Effects ◽  
Coaching Preferences

80 Australian and 100 Canadian high school girl volleyball players reported a significant difference by nationality on “democratic behavior” and by age, and by sex of the coach on “positive feedback” on Chelladurai and Saleh's Leadership Scale for Sports. No significant main effects were found between nationality groups, players' age, or sex of the coach on any of the other variables of the scale.

scholarly journals The Effect of Submaximal Exercise Preceded by Single Whole-Body Cryotherapy on the Markers of Oxidative Stress and Inflammation in Blood of Volleyball Players

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Celestyna Mila-Kierzenkowska ◽  
Alicja Jurecka ◽  
Alina Woźniak ◽  
Michał Szpinda ◽  
Beata Augustyńska ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Submaximal Exercise ◽  
Whole Body ◽  
Volleyball Players ◽  
Before And After ◽  
Markers Of Oxidative Stress ◽  
Total Oxidative Status ◽  
Whole Body Cryotherapy ◽  
Response To Exercise ◽  
Control Exercise

The aim of the study was to determine the effect of single whole-body cryotherapy (WBC) session applied prior to submaximal exercise on the activity of antioxidant enzymes, the concentration of lipid peroxidation products, total oxidative status, and the level of cytokines in blood of volleyball players. The study group consisted of 18 male professional volleyball players, who were subjected to extremely cold air (−130∘C) prior to exercise performed on cycloergometer. Blood samples were taken five times: before WBC, after WBC procedure, after exercise preceded by cryotherapy (WBC exercise), and before and after exercise without WBC (control exercise). The activity of catalase statistically significantly increased after control exercise. Moreover, the activity of catalase and superoxide dismutase was lower after WBC exercise than after control exercise (P<0.001). After WBC exercise, the level of IL-6 and IL-1βwas also lower (P<0.001) than after control exercise. The obtained results may suggest that cryotherapy prior to exercise may have some antioxidant and anti-inflammatory properties. The relations between the level of studied oxidative stress and inflammatory markers may testify to the contribution of reactive oxygen species in cytokines release into the blood system in response to exercise and WBC.

scholarly journals GAMBARAN PENGETAHUAN TENTANG MEROKOK PADA ORANG TUA YANG MEMILIKI ANAK PEROKOK USIA 10-15 TAHUN DI DUSUN MODINAN BANYURADEN GAMPING SLEMAN

2017 ◽  
Vol 6 (2) ◽  
pp. 106-118
Author(s):  
Nurmala Wulandari ◽  
Ni Ketut Mendri ◽  
Eko Suryani
Keyword(s):  
High School ◽  
Sampling Technique ◽  
Descriptive Study ◽  
Good Knowledge ◽  
Survey Method ◽  
Knowledge Level ◽  
Purposive Sampling ◽  
The Individual ◽  
The Village ◽  
Special Region

Based on Research (RisKesDa) on years 2013 Yogyakarta Special Region is a province with a prevalence of age ≥ 10 years each day smoking as much as 21.2%. There are many reasons teenagers or children age ≤ 15 years of smoking. The factor that causes the child to smoke are from the environment of smoking parents or peers and from the individual himself. This study was conducted to find out the description of parent's knowledge about cigarettes in parents own children smokers age 10-15 years in the Village Modinan. This research is a descriptive study using survey method. The sample was 38 respondents by using Purposive Sampling technique. Measuring tools using questionnaire. Parent's knowledge level on cigarettes in parents own had 10-15 year old smokers in 38 respondents showed that knowledge level was in good category. Obtained 60.5% of parents at the age of 36-45 years, 63.2% of parents have senior high school, 52.6% of parents work as housewife, and 55.4% of unemployed parrent. Knowledge of cigarettes in parents own have 10-15 year old smokers in Modinan Village mayority in the category of good knowledge.

scholarly journals PEMBINAAN SISWA BERBAKAT DAN BERPRESTASI DI SMA NEGERI 1 SEMARANG

2015 ◽  
Vol 24 (2) ◽  
Author(s):  
Esti Gusti Arini
Keyword(s):  
High School ◽  
Data Analysis ◽  
General Problem ◽  
Special Class ◽  
Learning Experience ◽  
Senior High School ◽  
Learning Activity ◽  
Talented Student ◽  
Model Study ◽  
Strategy Construction

Talented student is student who owns ability more than a student in general. Problem which often happens at school in Indonesia is minim of education to talented student. In accommodating fund channel potency to talented student, State Senior High School 1 of Semarang forms special class to talented student and has achievement. Based on background, this research aims to 1) to descripbe strategy construction of student in State Senior High School 1 of Semarang and to descripbe execution of construction of student in State Senior High School 1 of Semarang. This type of research is qualitative ethnography. This research is executed in State Senior High School 1 of Semarang. Subject research is the principal, teacher, and student. Method data collecting use circumstantial interview, observation, and documentation. Data analysis in this research is ethnography analysis. Test authenticity of data by test credibility, transformabilitiy, and conformabilities of expendabilities. The results are 1) Strategy construction of student based on achievement and talent in State Senior High School 1 of Semarang is model study of subdividing of talented student in class of especially with pleasant study strategy and in construction of talented student and have achievement needed and 2) execution of construction of student based on achievement and talent in State Senior High School 1 of Semarang passes some developments with instruction strategy. Those are, first, study bases on problem. Second is exploiting student environment to obtain learning experience. Thirdly, is group activity. Fourth, is making autodidact activity. Fifth is making learning activity to cooperate with society. Sixth is applying assessment of authentic

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