I Putu Eka Wijaya Putra
Fakultas Ilmu Keolahragaan, Universitas Cenderawasih, Papua Indonesia.

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MEMBONGKAR DAMPAK KARTU KUNING PADA PERFORMA TIM SEPAKBOLA LIGA 1 BRI MUSIM 2023-2024 Hidayat, Rodhi Rusdianto; Mandosir, Yohanis Manfred; Muhammad, Junalia; Kustiawan, Andri Arif; Larung, Ermelinda Yersin Putri; Sinaga, Evi; Putra, Miftah Fariz Prima; Kurdi; CS, Ansar; Ibrahim, Ibrahim; Putra, I Putu Eka Wijaya; Nasruddin, Nasruddin; Sirampun, Elsi; Ledoh, Cartika Candra; Adelia, Syarifa; Dwipa, Bhakti Saka; Lewier, Meilani Paulina
Indonesian Journal of Sport Science and Technology (IJST) Vol. 3 No. 2 (2024): Indonesian Journal of Sport Science and Technology (IJST)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/ijst.v3i2.7600

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh kartu kuning terhadap kinerja tim sepak bola di Liga 1 BRI Indonesia musim 2023-2024. Inti permasalahan yang diangkat adalah bagaimana kartu kuning memengaruhi penguasaan bola, pencetakan gol, dan hasil pertandingan secara keseluruhan. Metode yang digunakan adalah desain penelitian korelatif kuantitatif, dengan data yang dikumpulkan dari 18 tim (9 provinsi) selama satu musim penuh (11 bulan). Analisis dilakukan menggunakan uji korelasi Pearson, regresi linear, dan analisis varian (ANOVA) untuk mengevaluasi dampak kartu kuning dalam berbagai kondisi pertandingan. Hasil penelitian menunjukkan bahwa kartu kuning memiliki dampak negatif yang signifikan terhadap penguasaan bola (koefisien: -0.341, p<0.001) dan pencetakan gol (koefisien: -0.017, p=0.003), terutama pada pertandingan tandang dan melawan lawan yang lebih kuat, serta ketika diterima oleh pemain kunci seperti gelandang tengah atau pemain belakang. Simpulan dari penelitian ini menyoroti pentingnya strategi manajemen risiko kartu kuning dan pelatihan ketahanan psikologis untuk pemain, serta relevansi temuan ini dalam mengembangkan strategi kompetitif tim. Penelitian ini memberikan kontribusi baru dalam literatur tentang disiplin dalam sepak bola dan implikasi praktis untuk manajemen tim sepak bola.
Uncovering the Impact of Yellow Cards on the Performance of the Liga 1 BRI Football Team for the 2023-2024 Season Hidayat, Rodhi Rusdianto; Dwipa, Bhakti Saka; Adelia, Syarifa; Ledoh, Cartika Candra; Sirampun, Elsi; Nasruddin; Putra, I Putu Eka Wijaya; Ibrahim; Ansar CS; Kurdi; Putra, Miftah Fariz Prima; Sinaga, Evi; Larung, Ermelinda Yersin Putri; Kustiawan, Andri Arif; Muhammad, Junalia; Mandosir, Yohanis Manfred; Lewier, Meilani Paulina
Fair Play Vol. 2 No. 1 (2025): FAIR PLAY
Publisher : Java Mutiara Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71264/fairplay.v2i1.45

Abstract

This study aims to examine the effect of yellow cards on the performance of football teams in Liga 1 BRI Indonesia season 2023-2024. The core issue raised is how yellow cards affect ball possession, goal scoring, and overall match results. The method used was a quantitative correlative research design, with data collected from 18 teams (9 provinces) over a full season (11 months). Analyses were conducted using Pearson correlation test, linear regression, and analysis of variance (ANOVA) to evaluate the impact of yellow cards in various match conditions. The results showed that yellow cards had a significant negative impact on possession (coefficient: -0.341, p<0.001) and goal scoring (coefficient: -0.017, p=0.003), especially in away matches and against stronger opponents, as well as when received by key players such as central midfielders or defenders. The conclusions of this study highlight the importance of yellow card risk management strategies and psychological resilience training for players, as well as the relevance of these findings in developing team competitive strategies. This research provides a new contribution to the literature on discipline in football and practical implications for football team management.
The effect of vitamin C supplementation on maximum physical activity toward leucocytes total Syahruddin, Syahruddin; Manfred Mandosir, Yohanis; Eka Wijaya Putra, I Putu; Sinaga, Evi; Kristanto, Budi
Jurnal SPORTIF : Jurnal Penelitian Pembelajaran Vol 7 No 1 (2021): Jurnal SPORTIF: Jurnal Penelitian Pembelajaran
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2490.259 KB) | DOI: 10.29407/js_unpgri.v7i1.15715

Abstract

The purpose of study was to determine the effect of vitamin C supplementation on maximum physical activity on the total of leukocytes. Research method used a quasi-field experiment with pre-test design and post-test control group design. The study subjects consisted of four male non-athletes, aged 20-22 years. The number of leukocytes was measured before and after vitamin C supplementation with a dose of 100 mg and 500 mg in maximum activity, namely running to fatigue. Data normality was tested by Kolmogorov Smirnov and paired sample t-test was used to test for differences in the total of leukocytes before and after vitamin C supplementation. The results showed that the average number of respondents' leukocytes increased after maximal physical activity (∆ = 6,775) and after vitamin C supplementation 100 mg (∆ = 1300) and 500 mg (∆ = 550). Paired t-test showed a significant difference (p = 0.019) between the total of leukocytes before and after maximum physical activity. There was no significant difference between the supplementation of vitamin C at a dose of 100 mg (p = 0.09) and a dose of 500 mg (p = 0.95) on the total of leukocytes before and after maximum physical activity. So, it is concluded that maximum physical activity increases the number of leukocytes. However, there was no difference in the number of leukocytes before and after maximum physical activity in the supplementation of 100 mg and 500 mg of vitamin C