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All Journal Jurnal Kesehatan Olahraga Widya Cendika Arena Ilmu Keolahragaan Pendas : Jurnah Ilmiah Pendidikan Dasar Halaman Olahraga Nusantara : Jurnal Ilmu Keolahragaan Jambura Health and Sport Journal JOURNAL OF SPORT EDUCATION (JOPE) Bravo's : Jurnal Program Studi Pendidikan Jasmani dan Kesehatan Jurnal PORKES Journal Coaching Education Sports Jurnal Pendidikan Jasmani (JPJ) PEDAGOGI: Jurnal Ilmiah Pendidikan Inspirasi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Bravo's: Journal of Physical Education and Sport Science Sriwijaya Journal of Sport Laksana Olahraga
Dita Yuliastrid
Universitas Negeri Surabaya
Arts Humanities Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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The effectiveness of dumbbell training on improving overhand serve ability in volleyball: an experimental study on beginner athletes Arga, Mochhammad Imam Bastomi; Sudjandoko, Andun; Yuliastrid, Dita; Nugroho, Testa Adi
Sriwijaya Journal of Sport Vol. 5 No. 2 (2026): Sriwijaya Journal of Sport
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55379/sjs.v5i2.229

Abstract

Research Background: Beginner volleyball athletes often experience difficulties in performing effective overhead serves, particularly in terms of strength and accuracy. One of the contributing factors is the lack of appropriate training methods that specifically target upper limb strength. Therefore, it is necessary to examine whether variations in dumbbell load (500 grams and 600 grams) can significantly improve overhead serve ability. Research Objective: This study aimed to examine the effect of different dumbbell loads, namely 500 grams and 600 grams, on improving volleyball overhead serve ability among beginner athletes. Method: This study employed an experimental design using a pretest-posttest control group design. The participants were 30 beginner athletes from the Bintang Muda Kediri Club. The samples were divided into three groups using the ordinal pairing technique: a 500-gram dumbbell group, a 600-gram dumbbell group, and a control group. The training program was conducted over four weeks, with a frequency of three sessions per week. Data were analyzed using ANOVA to determine differences between groups. Results: The results indicated a significant improvement in overhead serve ability across all groups (p < 0.05). However, the group trained with 600-gram dumbbells showed the highest improvement compared to the other groups. The ANOVA test results (F = 44.23; p = 0.000) confirmed that there were significant differences among the groups. Conclusion: Both 500-gram and 600-gram dumbbell training were effective in improving overhead serve ability among beginner volleyball athletes. However, the 600-gram dumbbell load was found to be more effective. These findings suggest that incorporating appropriate resistance training can provide practical benefits for coaches in designing structured training programs to enhance athletes’ performance.
HUBUNGAN KONSUMSI HARIAN DENGAN TINGKAT KEBUGARAN PADA SISWA KELAS IX DI SMPN 1 NGASEM BOJONEGORO Sukma Waskita Budi Luhur; Pudjijuniarto; Yuliastrid, Dita; Mokh. Nur Bawono
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 1 (2026): Volume 11 No.1, Maret 2026.
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i1.41499

Abstract

Daily life requires physical fitness, which is defined as the body's ability to adapt to various types of activities. In this case, exercise is good for your health andquality of life. Internal and external factors are twocategories that can affect a person's physical fitness. Internal factors include age, gender, and geneticfactors, while external factors include diet, physicalactivity level, smoking habits, and nutritional status. The purpose of this study was to investigate how thedaily food consumption of ninth-grade students atSMPN 1 Ngasem Bojonegoro correlates with theirfitness levels. With a sample of 66 students selected atrandom, a quantitative correlational method was used. After being collected for 24 hours, the Nusantara Student Fitness Test (TKPN) was analyzed usingnormality tests and Spearman's rank correlation. The results showed that most students (52 percent) had fitness in the “fair” category, and that 44 percent ofstudents consumed more than necessary every day. The results of the study showed a significant positiverelationship between the two variables, with a correlation coefficient of 0.752 and significance of0.000 (p < 0.05). Therefore, it was found that anincrease in student fitness levels was influenced byadequate daily consumption.
Prevalence and Weight Class Differences in Sleep Quality Among Competitive Jujitsu Athletes in Indonesia Seto, Mohammad Krisno Bayu; Yuliastrid, Dita
Journal Coaching Education Sports Vol. 7 No. 1 (2026)
Publisher : Program Studi Pendidikan Kepelatihan Olahraga Fakultas Ilmu Pendidikan Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/h4dsqp35

Abstract

Sleep plays a critical role in physiological recovery, cognitive function, and optimal athletic performance. However, limited research has investigated sleep quality among combat sport athletes in Southeast Asia, particularly in weight-class sports such as Jujitsu. This study aimed to examine the prevalence and characteristics of sleep quality among competitive Jujitsu athletes in Surabaya, Indonesia. A descriptive quantitative cross-sectional design was employed involving 56 athletes selected using purposive sampling. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Descriptive statistics and comparative analysis were used to examine sleep quality patterns across gender and weight categories. The results indicated that 69.6% of athletes experienced poor sleep quality, whereas 30.4% demonstrated good sleep quality. The overall mean PSQI score was 6.8 ± 2.6 (95% CI: 4.5–8.9), exceeding the established cutoff value (>5) and indicating generally poor sleep quality among the participants. Poor sleep quality appeared more prevalent among female athletes and those competing in lighter weight classes. Female athletes demonstrated slightly higher PSQI scores compared with male athletes, although the difference showed a small effect size (Cohen’s d ≈ 0.15) and was not statistically significant (p > .05). These findings highlight the need for structured sleep monitoring and targeted recovery strategies in combat sport training environments. Practical interventions such as sleep hygiene education, optimized training schedules, and monitoring of weight management practices may help improve sleep quality and support athletic performance among Jujitsu athletes.
Co-Authors Abdul Hafidz Achmad Rizanul Wahyudi Al Haq, Akmal Abdillah ANDUN SUDIJANDOKO Anindya Mar’atus Sholikhah Anna Noordia ANNA NOORDIA Anung Priambodo Arga, Mochhammad Imam Bastomi Ariyanto, Arsan Firdaus Atmaja, Aditya Nindya Aulia Rahmawati, Aulia Ayunita Leliana Bakti, Ananda Perwira Barki Muslim, Muhammad Zaidan Bayu Agung Pramono Bayu Budi Prakoso Damayanti, Dhita Azzahra Eva Ferdita Yuhantini FICI DESENTA, RIBANA Haqiqi, Rahmat Hidayat Heri Wahyudi HERI WAHYUDI Hidayatullah, Moch Bagus I Made Wijaya Indi Alfina Damayanti Indra Himawan Susanto Irawan , Roy Januardi Julaikha, Noni Dewi Nur Kumaat, Noortje Anita KUSDIANTORO PRATAMA, CANDRA Made Pramono Mokh. Nur Bawono Muslimawati, Ananda Dwi Mustar, Yetty Septiani Nugraha, Testa Adi Nugroho, Testa Adi PITALIANTO, YHANU PRASETIYO, RUDI Prayikno, Rina PUDJIJUNIARTO Pudjijuniarto, Pudjijuniarto Rahmawati, Fajar Aulia Ramadhan, Roihan Riska Devi Kurniawati RIZAL AFANDI, NUR ROY JANUARDI IRAWAN Saputra, Yudi Dwi Sasminta Christina Yuli Hartati Seto, Mohammad Krisno Bayu Sholikhah, Anindya Mar'atus Sudarso Sudarso Sudjandoko, Andun Sukma Waskita Budi Luhur SULISTYARTO, SONI Suroto Suryanto, Suryanto Susanto, Indra Himawan Susanto, Indra Hirmanwan Toho Cholik Mutohir Tutur Jatmiko Wanasari, Sekar Murti