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Darajat, Jajat
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The Effect of Creatine Supplement on The Kidney Function of Dragon Boat Athletes Pitriani, Pipit; Ray, Hamidie Ronald RayDaniel; Darajat, Jajat
JURNAL PENDIDIKAN JASMANI DAN OLAHRAGA Vol 5, No 1 (2020): Improving Physical Education to Promote Healthy Growth
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (54.407 KB) | DOI: 10.17509/jpjo.v5i1.23181

Abstract

The consumption of creatine supplement among amateur and professional athletes is increasing. The purpose of this study was to determine the effect of creatine supplementation on the kidney function of dragon boat athletes. 12 dragon boat athletes were divided into 2 groups, including one group that consumed creatine supplement and one group without creatine intake (placebo). Creatine supplement was given at a loading dose of 20gr/day. The frequency of creatine supplement intake was 3-4x a day. In the second week, the dose was reduced into 15 gr/day. Creatine supplements were consumed for 5 weeks. Blood urea and creatinine were taken from the median cubital vein of the arm by using a 3cc syringe. The results showed that creatine supplementation had a significant effect in increasing the level of blood urea and creatinine. Although there were increases in urea and creatinine levels in the blood, the amount was still within normal limits. Therefore, it should be anticipated by taking a sufficient water intake. AbstrakKonsumsi kreatin suplemen di kalangan atlet amatir dan profesional semakin meningkat. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh suplemen kreatin terhadap fungsi ginjal atlet dragon boat. 12 orang atlet dragon boat dibagi menjadi 2 kelompok, satu kelompok yang mengkonsumsi kreatin dan satu kelompok tanpa asupan kreatin (placebo). Suplemen kreatin diberikan dengan dosis loading 20gr/hari, frekuensi pemberian 3-4x sehari. Pada minggu kedua dosis diturunkan menjadi 15 gr/hari. Suplemen kreatin dikonsumsi selama 5 minggu. Kadar ureum dan kreatinin darah diambil dari vena median cubital lengan dengan menggunakan spuit 3cc. Hasil penelitian didapatkan pemberian suplemen kreatin berpengaruh signifikan meningkatkan kadar ureum dan kreatinin dalam darah. Walau terdapat peningkatan kadar ureum dan kreatinin dalam darah namun jumlahnya masih dalam batas normal, sehingga perlu diantisipasi dengan asupan cairan yang memadai.
Batting Performance Analisys of West Java Athletes Gumilar, Agus; Darajat, Jajat; Ma’mun, Amung; Nuryadi, N; Hambali, Burhan; Mudjihartono, M; Mulyana, Dadan
JURNAL PENDIDIKAN JASMANI DAN OLAHRAGA Vol 6, No 2 (2021): Opportunities from The Sport and Health Education to Improve Quality of Life
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (777.864 KB) | DOI: 10.17509/jpjo.v6i2.37215

Abstract

This research aimed to analyze the batting skill performance on softball using an application of technology. The assessment results can help the coaching process by providing empirical data and become material for evaluation and recommendations for trainers and coaches in the following coaching process. The method used in this research was a descriptive analysis survey. The samples were 21 West Java female softball athletes who were doing training concentration. The measurement of the speed impact parameter was obtained (79.94 ± 7.73) to achieve the 25.06% target achievement. The results of the parameter test on the target obtained a p-value (0.0001) 0.05. This means that the percentage of the results on this parameter had not significantly met the target. The impact time parameter obtained an average percentage of the results of (83.06 ± 8.47). The percentage of the target was 16.94%. The Tukey statistical follow-up test results showed that the impact time parameter had not shown a significant achievement with a p-value (0.0001) 0.05. It concludes that the batting performance of West Java female softball athletes had not reached the stated target. Therefore, it is recommended that the training increase based on the portion and exercise items according to the predetermined parameters.
Perbandingan Model Pendekatan Taktis Dan Pendekatan Tradisional Terhadap Hasil Belajar Permainan Kasti Willy, Muhamad; Darajat, Jajat; Wahyudi, Arif
JURNAL PENDIDIKAN JASMANI DAN OLAHRAGA Vol 1, No 1 (2016): Jurnal Pendidikan Jasmani dan Olahraga Vol 1 No 1 2016
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.73 KB) | DOI: 10.17509/jpjo.v1i1.3659

Abstract

 Hasil temuan peneliti dari 40 siswi sebagai objek penelitian di dapat signifikansi sebesar 0,000 presentasi peningkatannya sebesar 23,14%  atau (8,35 ± 1,31 vs 10,70 ± 1,13) untuk pendekatan taktis dan 0,004 untuk pendekatan tradisional presentasi peningkatannya adalah sebesar 15,52% atau (8,05 ± 1,32 vs 9,30 ± 1,26) perbedaan didapat signifikasi sebesar 0,000 presentasi peningkatannya sebesar 88% atau (2,35 ± 0,67 vs 1,25 ± 0,55) dari hasil penelitian tersebut maka didapat hasil pendekatan taktis lebih besar signifikansinya dibandingkan pendekatan tradisional, maka dari itu peneliti merekomendasikan penggunaan pendekatan taktis untuk olahraga permainan.
Co-Authors Arif Wahyudi Dadan Mulyana Gumilar, Agus Hambali, Burhan Ma’mun, Amung Mudjihartono Mudjihartono Muhamad Willy, Muhamad Nuryadi, N Pitriani, Pipit Ray, Hamidie Ronald Daniel