scholarly journals The Effect of Static and Dynamic Stretching Exercises on Sprint Ability of Recreational Male Volleyball Players

2019 ◽  
Vol 16 (16) ◽  
pp. 2835 ◽  
Author(s):  
Foteini Alipasali ◽  
Sophia D. Papadopoulou ◽  
Ioannis Gissis ◽  
Georgios Komsis ◽  
Stergios Komsis ◽  
...  
Keyword(s):  
Body Mass ◽  
Exercise Intervention ◽  
Control Group ◽  
Dynamic Stretching ◽  
Volleyball Players ◽  
Post Test ◽  
Present Trial ◽  
Positive Effect ◽  
Stretching Exercises ◽  
Sprint Ability

The aim of the present trial was to investigate the effect of two stretching programs, a dynamic and a static one, on the sprint ability of recreational volleyball players. The sample consisted of 27 male recreational volleyball players (age 21.6 ± 2.1 years, mean ± standard deviation, body mass 80.3 ± 8.9 kg, height 1.82 ± 0.06 m, body mass index 24.3 ± 2.5 kg.m−2, volleyball experience 7.7 ± 2.9 years). Participants were randomly divided into three groups: (a) the first performing dynamic stretching exercises three times per week, (b) the second following a static stretching protocol on the same frequency, and (c) the third being the control group, abstaining from any stretching protocol. The duration of the stretching exercise intervention period was 6 weeks, with all groups performing baseline and final field sprinting tests at 4.5 and 9 m. The post-test sprint times were faster in both the 4.5 (p = 0.027, η2 = 0.188) and 9 m tests (p < 0.001, η2 = 0.605) compared to the pre-test values. A large time × group interaction was shown in both the 4.5 (p = 0.007, η2 = 0.341) and 9 m tests (p = 0.004, η2 = 0.363) with the static and dynamic stretching groups being faster in the post-test than in the pre-test, whereas no change was found in the control group. The percentage change in the 4.5 m sprint time correlated with volleyball experience (r = −0.38, p = 0.050), i.e., the longer the volleyball experience, the larger the improvement in the 4.5 m sprint. Thus, it is concluded that both stretching techniques have a positive effect on the velocity of recreational male volleyball players, when performed at a frequency of three times per week for 6 weeks under the same conditions as defined in the study protocol.

scholarly journals Efektifitas Latihan Stretching Terhadap Penurunan Nyeri Akibat Musculoskeletal Disorder (MSDs) Di Tempat Kerja

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Dwi Purwantini ◽  
Febronia Norita Mariana ◽  
Angela Putri Karla Ruslani
Keyword(s):  
Musculoskeletal Disorders ◽  
Exercise Intervention ◽  
Musculoskeletal Symptoms ◽  
Research Subjects ◽  
Work Related ◽  
Before And After ◽  
Post Test ◽  
Positive Effect ◽  
Stretching Exercises

Stretching exercise is a therapeutic exercise that aims to increase soft tissue extensibility. Stretching has a positive effect on musculoskeletal symptoms and reduces pain and can prevent work-related musculoskelatal injuries. This study aims to analyze the effect of stretching exercises on reducing pain due to musculoskeletal disorders (MSDs) in the workplace. This type of research is experimental research design with one group pre test-post test design. The research subjects were 30 employees at PT Naka Tujuh Gemilang. Subjects received stretching exercise intervention for 10-15 minutes which was done 2-3 times per week for 2 weeks. Subjects were measured the quality of pain with the Verbal Descriptor Scale (VDS) before and after stretching exercises. The research data shows that p = 0.00 Ho is rejected and Ha is accepted, so the hypothesis states that stretching exercises have an effect on decreasing VDS values. The conclusion of this study is that stretching exercises are effective in reducing pain due to musculoskeletal disorders (MSDs) in the workplace

scholarly journals The Effect of Memory Strategy Training on Vocabulary Learning by EFL Female Students of the College of Languages and Translation: An Experimental Study

2018 ◽  
Author(s):  
Arab World English Journal ◽  
Ghadah Fahad Alzaidi
Keyword(s):  
Traditional Instruction ◽  
Strategy Training ◽  
Control Group ◽  
King Saud University ◽  
New Words ◽  
Before And After ◽  
Post Test ◽  
Students Attitudes ◽  
Positive Effect ◽  
Experimental Group

The purpose of this study was to investigate the effectiveness of memory strategies (MSs)in improving students' ability to recall and spell newly learned vocabulary items. The researcheronly considered three types of MSs: grouping, placing new words in to a context and structuredreviewing. In addition, the study used a questionnaire that explored students' attitudes towardsMSs in general, and towards the specific MSs that they have been trained to use, as well as therelationship between MSs and motivation and between MSs and anxiety. intact groups (63 students in total) were selected from level three of the College of Languages and Translation (COLT) at King Saud University (KSU), Kingdom of Saudi Arabia. The two groups were assigned to the experimental group (36 students) and the control group(27students). The control group received traditional instruction that depended on the textbook without any MS training, whereas the experimental group received a combination of traditional instruction and MS training. A pre- and post-test were administered to both groups before and after the experiment to examine students' ability to recall the meaning of vocabulary items and their ability to spell them correctly. The experiment lasted for fourteen weeks through which the participants received seven MS training sessions. The study found out that MS training was effective in improving students' ability to recall the meaning of vocabulary items when needed and their ability to spell them correctly. Moreover, the results showed that the subjects of the experimental group showed positive attitude towards MSs and most of them agreed on the positive effect that MSs had on raising their motivation and reducing their anxiety while learning vocabulary.

scholarly journals A Submaximal Exercise Patterns Intervention on the Plasmatic Leptin Level and Insulin Resistance for Overweight / Obesity Boys Adolescences

2021 ◽  
Author(s):  
Farzad Nazem ◽  
Salman Lotfi
Keyword(s):  
Insulin Resistance ◽  
Body Mass Index ◽  
Body Mass ◽  
Exercise Intervention ◽  
Exercise Program ◽  
Serum Levels ◽  
Medical Problem ◽  
Control Group ◽  
P Value ◽  
Training Interval

Objective: Obesity is a medical problem that increases the risk of health problems like diabetes. Hormones secreting from fat tissue, Leptin, are correlated with body mass index. Leptin reduces the personchr('39')s appetite by acting on specific centers of their brain to reduce their urge to eat. And insulin, a hormone produced by the pancreas, is essential for regulating carbohydrates and the metabolism of fat. A positive relationship between leptin levels and insulin resistance in children showing in this study is to determine the effect of continues-endurance and interval-endurance on leptin serum levels and insulin resistance in over-weighted youths. Materials and Methods: This study is a semi-experimental design. Thirty boys were voluntarily selected as a matched two experimental groups and a control. Physical profiles included aged 16-19, BMI; 37.75 (±4.46) KG/M2, base functional capacity: 32.8 (±3.6) ml/kg/min which dividing by three equal groups: the submaximal training interval, a continuum and interval and control group performed the submaximal running program for six weeks on 3 D/W. The selected parameters were evaluated for an intervention pre and post-conditions. Results: weight and body mass index variables were decreased by about 2.5-3% after exercise intervention. Plasmatic leptin levels were reduced by about 45% in the continuum and interval control groups. HOMA-IR & QUICKI indexes altered in the EG (8.9 %, 7.8%) (P-value < 0.05). Conclusion: Presumably, 2 exercise program patterns lower than lactate threshold could change body composition profile, basal leptin level, and blood glucose /insulin concentrations, which probably induced changes in resistance to insulin.

scholarly journals Effectiveness of Intradialytic Stretching Exercises on Muscle Cramps among Patients Undergoing Haemodialysis in a Selected Tertiary Care Hospital Kancheepuram District, Tamil Nadu, India

2021 ◽  
pp. 235-248
Author(s):  
K. Anbu ◽  
A. Rathiga
Keyword(s):  
Tamil Nadu ◽  
Mean Value ◽  
Control Group ◽  
World Population ◽  
Study Group ◽  
Muscle Cramps ◽  
Clinical Variables ◽  
Research Hypothesis ◽  
Post Test ◽  
Stretching Exercises

Background: Chronic kidney disease is the vital and non-communicable disease epidemic that affects the world population including India. Muscle cramps are a common complication of haemodialysis treatments and they often result in the early termination of the session, it is an important priority to provide timely intervention to improve their muscle cramps of haemodialysis patients. Materials and Methods: The aim of the study is to evaluate the effectiveness of intradialytic stretching exercises on muscle cramps among patients on haemodialysis. Time series quasi experimental design was conducted in dialysis unit of Chettinad Super Specialty Hospital, Kelambakkam at Chengalpet District, Tamil Nadu, India.Total sample of 138 belong to 30 to 60 years were selected with the use of purposive sampling technique as per the statistical calculation and equally allocated to control 69 samples and to Study group 69.  The structured questionnaire are demographic, Clinical variables & Modified cramps questionnaire chart was used to assess the effectiveness of intradialytic stretching exercises on level of muscle cramps. Results: The study findings concluded that in pre test 41(59.4 %) of the patients in study group and 38(55.1 %) of the patients in control group had mild muscle cramps whereas in post test 4(5.8 %) of the patients in study group had severe muscle cramps and 16 (23.2 %) of the patients in control group had severe muscle cramps. While comparing the post test mean value of control group 2.652±0.854 the study group mean value was 2.101±0.769 was significantly reduced with‘t’ value of 10.185 at p ≤ 0.000. Therefore the Research hypothesis H1 was retained. Hence there was no significant association between the test scores on intensity of muscle cramps among patients undergoing haemodialysis with selected demographic and clinical variables of group 2 (study) at P ≤ 0.000 level. Therefore the Research hypothesis H2 was rejected.The majority finding of the study results that in pre test 32 (46.4 %) of the patients were in mild muscle cramps in post test 1.More than half of the patients 30 (43.5 %) of moderate muscle cramps in post test 2. And majority 40 (58 %) of the patients in moderate muscle cramps in post test 3.The effect of intradialytic stretching exercises in reducing the level of muscle cramps during haemodialysis. Conclusion: Intradialytic stretching exercises is an effective method which can be used as a preventive therapy in the treatment of muscle cramps.

scholarly journals PENGARUH METODE PRAKTIKUM BERBANTUAN FLASH TERHADAP HASIL BELAJAR SISWA PADA MATERI HIDROKARBON DI KELAS XI IPA SMA MUHAMMADIYAH PONTIANAK

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Salmauwati Salmauwati ◽  
Muhamad Agus Wibowo ◽  
Dedeh Kurniasih
Keyword(s):  
Learning Outcomes ◽  
Practical Method ◽  
Control Group ◽  
Control Groups ◽  
Lecture Method ◽  
Post Test ◽  
Quasi Experimental ◽  
Teaching Learning ◽  
And Control ◽  
Positive Effect

ABSTRACTThis study was initiated by the students’ low learning outcomes on Chemistry subject and the teachers’ preference in using lecture method in teaching learning process.This study aimed at 1) finding out the differences of students’ learning outcomes between the use of flash media-assisted practical method and lecture method on hydrocarbon class at grade XI MIA of SMA Muhammadiyah I Pontianak. Using quasi experimental design and Control Group Posttes Design, this study employed the students of grade XI MIA 2 as the samples of experiment group, andthe students of grade XI MIA 2 as the samples of control group. The data collection techniques used were measurement and observation. While the instruments employed were observation sheet and essay. TheU-Mann Whitneytest revealed that the post test score of 0,0140< 0,05 Ho was rejected, while the Ha one was accepted. It means that there was correlation of students’ learning outcomes between the experiment and the control groups. In addition, the effect size result was 1,086 > 0,8 and considered high which indicated the positive effect of flash media-assisted practical method in enhancing students’ learning achievement.Keywords: flash, learning outcomes, hydrocarbon, practical method

Warm-Up With Dynamic Stretching: Positive Effects on Match-Measured Change of Direction Performance in Young Elite Volleyball Players

2020 ◽  
Vol 15 (4) ◽  
pp. 528-533
Author(s):  
Olfa Turki ◽  
Wissem Dhahbi ◽  
Johnny Padulo ◽  
Riadh Khalifa ◽  
Sana Ridène ◽  
...  
Keyword(s):  
Body Mass ◽  
Test Performance ◽  
Body Height ◽  
Performance Measurements ◽  
Fat Percentage ◽  
Warm Up ◽  
Dynamic Stretching ◽  
Change Of Direction ◽  
Positive Effects ◽  
Volleyball Players

Purpose: To explore the immediate (15-s post-warm-up) and the delayed (after 20 and 40 min of simulated volleyball play) effects of 2 different warm-up protocols—a stretching-free volleyball warm-up (NS) and a warm-up incorporating dynamic stretching (DS)—on subsequent change of direction (COD) performance in young elite volleyball players. Methods: Sixteen male players (age 16.88 [0.34] y, body mass 75.81 [5.41] kg, body height 1.91 [0.05] m, body mass index 20.84 [1.79] kg·m−2, and body fat percentage 9.48 [1.83]%) from the U-17 national volleyball team performed NS and DS on 2 different nonconsecutive days. During each testing session (NS and DS), half T-test performance measurements were performed after 5 minutes of a general warm-up (ie, baseline), immediately post-warm-up (after 15 s), and after 20 and 40 minutes of simulated volleyball play. Results: For DS, a significant improvement in COD performance (2.08%, P < .001) was observed after 20 minutes of play compared with the baseline values. In addition, COD performance recorded after 40 minutes of play was better than after 15-second post-warm-up (5.85%, P = .001). Inferential statistics showed better COD performance in the DS condition after 20 minutes of play (2.32%, likely negative, d = 0.61). Conclusions: Compared with NS, DS tended to affect the pattern of improvement of COD performance during play by intensifying and accelerating it. Consequently, to enhance COD performance for up to 40 minutes into the game, it is recommended that DS be incorporated to the warm-up preceding the match.

scholarly journals Pengaruh penambahan Radial Shock Wave Therapy terhadap ketangkasan tangan (Studi pada penderita stroke kronik yang mendapatkan terapi infrared dan latihan peregangan)

2020 ◽  
Vol 7 (1) ◽  
pp. 64-68
Author(s):  
Ramandhani Agustiawan ◽  
Robby Tjandra Kartadinata ◽  
Siti Hanan Darodjah ◽  
Noviolita Dwi Kusumawati ◽  
Hindun Zuhdiana
Keyword(s):  
Shock Wave ◽  
Chronic Stroke ◽  
Control Group ◽  
Shock Wave Therapy ◽  
Hand Dexterity ◽  
Post Test ◽  
The Mean ◽  
Randomized Control ◽  
Nine Hole Peg Test ◽  
Stretching Exercises

Latar Belakang : Kelemahan anggota gerak akibat stroke terjadi pada 70% populasi. Teknik yang sering digunakan untuk meningkatkan ketangkasan tangan dengan pemanasan dan latihan peregangan. Radial Shock Wave Therapy (RSWT) merupakan teknologi baru yang menggunakan sumber balistik untuk menghasilkan gelombang tekanan yang dapat mengurangi spastisitas yang mempengaruhi ketangkasan tangan. Tujuan : Menganalisis pengaruh penambahan RSWT terhadap ketangkasan tangan pada penderita stroke kronik yang mendapatkan terapi infrared dan latihan peregangan. Metode : Simple randomized control trial pre-post test design. Tiga puluh pasien stroke kronik dirandomisasi, lima belas orang dimasukkan ke dalam kelompok yang mendapatkan penambahan RSWT, terapi infrared dan latihan peregangan dan lima belas orang masuk kelompok kontrol diberikan terapi infrared dan latihan peregangan. Ketangkasan tangan diukur dengan nilai nine hole peg test (NHPT) pada sebelum dan 6 minggu setelah perlakuan. Analisis data dengan uji Wilcoxon, nilai p<0,05 merupakan nilai signifikan. Hasil : Tiga puluh pasien menyelesaikan penelitian dan tidak ada yang mengeluhkan efek samping. Tidak terdapat perbedaan bermakna rerata delta nilai NHPT pada kedua kelompok (p=0,307), namun rerata delta penurunan pada kelompok perlakuan cenderung lebih besar dibanding kelompok kontrol. Simpulan : Penambahan RSWT tidak berpengaruh terhadap ketangkasan tangan. Kata kunci : RSWT; stroke kronik; ketangkasan tangan.   Background : Limb weakness besause of stroke was happend 70% of the population. The technique that is often used to improve hand dexterity are with thermal therapy and stretching exercises. Radial Shock Wave Therapy (RSWT) is a new technology that uses ballistic sources to produce pressure waves that can reduce spasticity that affect hand dexterity.   Purpose : Analyze the effect of adding RSWT to hand dexterity in chronic stroke sufferers who received infrared therapy and stretching exercises. Methods : simple randomized control trial pre-post test design who thirty chronic stroke patients were randomized, fifteen patients into a group that received additional RSWT, infrared therapy and stretching exercises and fifteen patients into control group. Hand dexterity is measured by the mean of the nine hole peg test before and 6 weeks after the intervention. Results : Thirty patients completed the study without any significant side effects. There was no significant difference in the mean nine-hole peg test in the two groups (p = 0.307), but the mean decrease in the treatment group greater than the control group. Conclusion : the additional RSWT was not proven to affect hand dexterity. Keywords : RSWT; chronic stroke; hand dexterity.  

scholarly journals Can Explicit Written Corrective Feedback Develop Grammatical and Lexical Accuracy of Saudi EFL Learners?

2018 ◽  
Vol 6 (4) ◽  
pp. 16 ◽  
Author(s):  
Nahla Al-Hazzani ◽  
Sultan Altalhab
Keyword(s):  
Corrective Feedback ◽  
Control Group ◽  
Efl Learners ◽  
Saudi Students ◽  
Written Corrective Feedback ◽  
Post Test ◽  
Efl Students ◽  
Positive Effect ◽  
Experimental Group ◽  
Made In

Saudi students encounter many problems in writing skill as several studies revealed (e.g. Alhazmi, 2006; Alsamdani, 2010). Providing effective and useful feedback may help to overcome these challenges. Therefore, this study examines the effect of teachers’ written corrective feedback on female Saudi EFL students’ written essays and to what extent it affects students’ written grammatical and lexical accuracy. The sample comprises 50 foundation level students, across two groups: an experimental group (n=29) and a control group (n=21). Data were gathered over a 10-week period using a pre-/post-test/delayed post-test design for comparable groups. The findings show that although many errors were made in the writing performances, the students in the experimental group had significantly better achievements than the students in the control group on the measure. The results lend support to the efficiency of teachers’ written corrective feedback, showing it has a significant positive effect on the participants’ grammatical and lexical accuracy.

scholarly journals Effect of Instructionally Embedded Formative Assessment on Students' Motivation to Learn at Higher Education Level

2020 ◽  
Vol V (I) ◽  
pp. 488-499
Author(s):  
Shumaila Hameed ◽  
Mumtaz Akhter
Keyword(s):  
Higher Education ◽  
Formative Assessment ◽  
Undergraduate Students ◽  
Education Level ◽  
Control Group ◽  
Control Group Design ◽  
Positive Effects ◽  
Post Test ◽  
Positive Effect ◽  
Experimental Group

Formative assessment is known for its positive effects it has on students' achievement. This study was designed to find out the effect of formative assessment on students' motivation at the higher education level. This study was experimental in nature; intact pre-test post-test control group design was used for data collection purpose. Sample of the study was selected conveniently, which comprised of undergraduate students. Students belonging to the experimental group were taught with instructional embedded formative assessment, whereas students belonging to the control group were taught with formal teaching methods. Students of both groups were required to fill a motivation questionnaire at the start and end of the study to check the level of intervention. Data collected through pre-test and post-test were analyzed using SPSS. The findings of the current study had suggested that instructional embedded formative assessment had a significant positive effect on students' motivation towards learning at the higher education level.

scholarly journals PENGARUH MEDIA PREZI TERHADAP HASIL BELAJAR PRAKARYA DAN KEWIRAUSAHAAN SISWA KELAS X SMAN 4 SINGARAJA

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Diva Palguna ◽  
Agus Adiarta ◽  
Gede Indrawan
Keyword(s):  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Object Selection ◽  
Group Design ◽  
Post Test ◽  
The Media ◽  
The One ◽  
Positive Effect ◽  
Test Result

The aim of this study was to know about the effect of Prezi media to the learning result off class x students about a Craft and Entrepreneurship at SMA N 4 Singaraja. The research method used quasi experiment with Post-test only control group design. The research object were a class experiment and a class control. The research object selection used random sampling. The sample class of this research were X MIA 3 class as experiment class and X MIA 6 as the control class. To examine the hypothesis, one sided t-test used. The one sided t-test result showed that the study result of experiment class which used the media of Prezi higher than the class control which used the conventional media. It could be seen from one sided t-test result with tsum = 7,015 bigger than ttable = 1,672. So, the Prezi media gave the positive effect to the study result of a Craft and Entrepreneurship subject.

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