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The Effect of Racket String Tension at 28 lbs and 24 lbs on Smash Speed of Badminton Athletes Rayhan Achdhika Subarjat; Komarudin; Angga M Syahid
ACTIVE: Journal of Physical Education, Sport, Health and Recreation Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/active.v14i3.34271

Abstract

Badminton is a racket sport that emphasizes movement technique training such as jumping, turning, fast arm movements and requires the right racket strings. One of the factors to get the speed of a badminton athlete's smash is one of them using the tightness of a 28 LBS and 24 LBS racket string. Therefore, this study aims to examine the effect of the tightness of the 28 LBS and 24 LBS racket strings on the speed of a badminton athlete's smash. The method used by the researcher is an experimental method with an Ex-Post Facto research design. The sample involved in this study consisted of 10 badminton athletes selected according to the criteria desired by the researcher. The instrument used uses kinovea software. The analysis of this data was taken by the researcher using the SPSS version 23 application. The data obtained by the researcher was in the form of an average value of 1.50, with a standard deviation of 0.513. The results of the homogeneity test showed that the significance value of 0.663> 0.05, so it can be concluded that the data variance is homogeneous. Along with the t-test results show that the significance value (2-tailed) is 0.000 <0.05, which means that there is a significant difference in average speed between the tightness of the 28 LBS and 24 LBS racket strings. The results of this study indicate that there is a significant effect of the tightness of the 28 LBS and 24 LBS racket strings on the speed of badminton athletes smash.
The Effect of Maltodextrin Supplementation on Anaerobic Power of Rowing Athletes Anggi Widiarti; Dede Rohmat Nurjaya; Angga M Syahid
ACTIVE: Journal of Physical Education, Sport, Health and Recreation Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/active.v14i3.36819

Abstract

Maltodextrin, a high-glycemic carbohydrate, is believed to maintain energy and delay muscle fatigue in rowing, a sport that relies on both aerobic and anaerobic energy sys-tems. The purpose of this study was to evaluate the effectiveness of maltodextrin supplementation in maintaining energy and anaerobic performance in rowing athletes. The research with a randomized pretest–posttest control group design involved eight rowing athletes from West Bandung Regency, divided into an experimental group (receiving 0.25 g/kg maltodextrin) and a control group (water). The main instrument used is the Concept-2 rowing ergometer which is equipped with a digital monitor to record power output, stroke rate, and mileage for each sprint. Data were analyzed descriptively to see the mean and difference between groups, followed by the Shapiro–Wilk normality test and the Levene homogeneity test. The results showed that maltodextrin supplementation did not have a statistically significant effect on the increase in anaerobic power of rowing athletes, but physiologically had a positive ef-fect on performance. The group that received maltodextrin had a lower fatigue index (13.5%) than the control group (17.6%), indicating a better ability to maintain strength during repeated sprints. Conclusion This study showed that maltodextrin supplemen-tation at a dose of 0.25 g/kg body weight given two hours before activity had a practi-cal positive effect on the anaerobic power of rowing athletes in West Bandung Re-gency.
Pengembangan Digital Library Referensi Latihan Fisik Berbasis Android Melalui Aplikasi PrimeMover Muhammad Hilmy Hakim; Alen Rismayadi; Angga M Syahid
Gelanggang Olahraga: Jurnal Pendidikan Jasmani dan Olahraga (JPJO) Vol. 9 No. 5 (2026): Gelanggang Olahraga: Jurnal Pendidikan Jasmani dan Olahraga
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/c43k4581

Abstract

This study aimed to design, develop, and determine the feasibility of the "PrimeMover" application as an Android-based digital library for physical exercise references. The application was developed using the no-code platform Kodular and was structured around four primary biomotor components (flexibility, SAQ, strength, and endurance) as the database categorization architecture to facilitate user navigation. This study employed a Research and Development (R&D) method adapted into six systematic stages: analysis, design, development, initial product, evaluation, and final product. The evaluation stage involved validation by two experts (a physical coaching expert and a sports technology expert), as well as field testing involving 40 students from the Physical Sports Coaching Study Program. Data were collected using a Likert-scale questionnaire that had demonstrated satisfactory validity and reliability (Cronbach’s Alpha = 0.918). The results of the descriptive percentage analysis indicated that the application achieved a feasibility score of 86.25% from the content expert and 100.00% from the sports technology expert, both of which were categorized as highly feasible. In the field testing phase, user responses yielded a feasibility percentage of 83.60%, which also fell within the highly feasible category. The findings of this study indicate that the PrimeMover application meets the requirements of academic validity and practical usability, making it highly suitable for implementation as a digital library platform for physical exercise references. Keywords: Android Application, Biomotor Components, Physical Exercise References, Digital Library
Pengaruh Latihan Kekuatan Tubuh Bagian Atas dengan Menggunakan Metode Piramida Puncak dan Piramida Terbalik Terhadap Kemampuan Kekuatan Maksimal Farida Utami Dewi; Dede Rohmat Nurjaya; Angga M Syahid
Gelanggang Olahraga: Jurnal Pendidikan Jasmani dan Olahraga (JPJO) Vol. 9 No. 5 (2026): Gelanggang Olahraga: Jurnal Pendidikan Jasmani dan Olahraga
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/n1f05f06

Abstract

This study aims to examine and analyze how upper body strength training using ascending pyramid and descending pyramid methods affects maximum strength ( ) in kayak sprint athletes in Purwakarta Regency. Using a quantitative experimental approach with a Two-Group Pretest-Posttest Design, the study involved 34 athletes (17 males and 17 females) selected through total sampling. The participants were then divided into two intervention groups using ordinal pairing. To measure performance, two specific rowing tests were used:  Bench Press and  Bench Pull. Based on the paired sample t-test, both training methods showed a significant increase in maximum strength for both male and female groups ( ). However, the independent sample t-test revealed no significant difference in final posttest performance between the ascending pyramid and descending pyramid groups for either the bench press or bench pull tests ( ). In conclusion, training programs using ascending pyramid and descending pyramid methods are equally effective for improving upper body maximum strength in rowing athletes. Ultimately, both methods yield relatively equal final results as long as the total training volume is kept the same. Keywords: Ascending Pyramid, Descending Pyramid, Maximum Strength, Rowing Athletes, Sprint Kayak