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All Journal Journal of Coaching and Sports Science Tanjungpura Journal of Coaching Research
Garcia-Jimenez, Jose Vicente
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Humanities Education Social Sciences Other

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The balance before and after dehydration: an experiment to see the difference Purnomo, Muhammad Iqbal; Roldan, Patrick John B.; Cabarles, John Paul A.; Quinto, Janna Marie B.; Garcia-Jimenez, Jose Vicente
Tanjungpura Journal of Coaching Research Vol 1, No 3 (2023): Tanjungpura Journal of Coaching Research
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/tajor.v1i3.73049

Abstract

Background and Study Aim. Balance is the ability to maintain the position of the body when standing, doing activities, also useful equilibrium, posture in order to be able to perform movement activities properly, water is very important for humans which is useful for maintaining cell hemostasis, fluid management interventions that pay attention to intek and output records that te Physical activity is a movement that involves muscles and energy working harder. This study aims to determine the difference in the effect before and after dehydration on body balance.Material and Methods. This research is a descriptive experiment. This research was conducted at the Sultan Syarif Abdurahman stadium field, Pontoianak City. The population used Sports Coaching Education students. Purposive sampling technique so that 16 students were sampled. The treatment was in the form of running 400m x 5 with a percentage of dehydration of 2%. Furthermore, the data were analyzed using SPSS 26.Results. The results showed a significance value of 0.241> 0.05, it can be concluded that there is no significant difference before and after dehydration on body balance. However, the calculation results can be seen that the mean balance will decrease if the body is dehydrated.Conclusions. Although there is a variation in the mean value, the difference does not reach the level of statistical significance. Thus, it can be concluded that body balance is not significantly affected by fluid loss before and after dehydration.
Confirmatory Factor Analysis of Emotional Management Instrument in Indonesian Futsal Players Suherman, Wawan Sundawan; Nopembri, Soni; Andrianto, Sigit Dwi; Nanda, Fitri Agung; Nurhidayah, Dewi; Novriansyah, Novriansyah; García-Jiménez, José Vicente
Journal of Coaching and Sports Science Vol. 4 No. 2 (2025): Journal of Coaching and Sports Science
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i2.977

Abstract

Background: Emotional management is a key psychological factor influencing futsal performance, but available measurement instruments are still general in nature, lack sport-specific validation, and have not been tested on Indonesian futsal athletes. Aims: This study seeks to rigorously validate and confirm the factor structure of an emotional management instrument designed explicitly for Indonesian futsal athletes, thereby strengthening its scientific and contextual relevance calculations with CFA. Methods:  Confirmatory Factor Analysis (CFA) was performed on data from 438 athletes recruited through incidental sampling across multiple regions in Indonesia. The emotional management instrument comprised 23 items that had previously undergone rigorous content validation by experts, including psychologists, national-level futsal coaches, and sport science academics. Model fit indices, convergent validity, and internal consistency reliability were systematically evaluated to ensure the robustness of the measurement model. Results: The five-factor model demonstrated excellent fit to the data (e.g., CFI > .95, TLI > .95, RMSEA < .06, SRMR < .08). All factors had AVEs above 0.50, indicating strong convergent validity. Reliability indices were high, with McDonald's ω and Cronbach's α exceeding .70 for all factors. Conclusion: The results indicate that the emotional management instrument demonstrates satisfactory validity, reliability, and structural integrity for application among Indonesian futsal athletes, thereby providing a robust framework for psychological assessment and supporting future research, talent development, and mental training programs.
Co-Authors Cabarles, John Paul A. Dewi Nurhidayah Nanda, Fitri Agung Novriansyah Novriansyah, Novriansyah Purnomo, Muhammad Iqbal Quinto, Janna Marie B. Roldan, Patrick John B. Sigit Dwi Andrianto Soni Nopembri Wawan Sundawan Suherman