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All Journal JURNAL PENDIDIKAN TAMBUSAI INSPIREE: Indonesian Sport Innovation Review JOSKA: ISORI KAMPAR JURNAL IGI in Education Insight
Zikri, Khairul
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Uji Eksperimental Pengaruh Jumlah Sudu terhadap Daya dan Efisiensi pada Turbin Angin Jenis Cross Flow Sumbu Vertikal Zikri, Khairul; Purnama Putra, Randi; Purwantono, Purwantono; Qalbina, Fitrah
Jurnal Pendidikan Tambusai Vol. 8 No. 3 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Permintaan energi global terus meningkat, didorong oleh pertumbuhan populasi, pembangunan ekonomi, dan pola konsumsi energi. Namun, bahan bakar fosil merupakan sumber daya yang ketersediaannya terbatas. Energi terbarukan memainkan peran penting dalam mencapai ketahanan energi. Indonesia memiliki potensi energi terbarukan yang cukup besar. Energi angin cukup menonjol sebagai salah satu sumber energi terbarukan yang signifikan. Salah satu cara untuk memanfaatkan energi angin adalah dengan menggunakan turbin angin. Turbin angin secara umum dibagi menjadi dua jenis, berdasarkan pada sumbu putarannya turbin angin sumbu horizontal dan turbin angin sumbu vertikal. Turbin angin crossflow merupakan salah satu jenis turbin angin sumbu vertical. Keunggulan turbin ini adalah torsinya yang tinggi memungkinkannya berputar pada kecepatan angin rendah. Jenis penelitian ini adalah penelitian eksperimental. Variasi jumlah blade yang digunakan pada penelitian yaitu 6, 10, dan 14 buah. Pengujian dilakukan dengan bantuan fan sebagai penggerak turbin dengan kecepatan yang berbeda yaitu 5m/s, 5,5m/s, 6m/s, 6,5m/s, dan7 m/s. Dari pengujian di dapat hasil daya generator tertinggi diperoleh turbin angin dengan variasi sudu 14 yaitu 3,01 watt saat kecepatan angin 7m/s. Nilai TSR tertinggi diperoleh dari turbin angin dengan variasi sudu 14 saat kecepatan angin 7m/s. Efisiensi tertinggi diperoleh dari dari turbin angin dengan variasi sudu 14 dengan nilai 11,41% saat kecepatan angin 7 m/s. Turbin yang paling baik dan optimal pada penelitian ini turbin angin dengan variasi sudu 14. Karena dari seluruh aspek hampir mengungguli turbin dengan variasi jumlah sudu lainnya.
Longitudinal Effects of School-Based Physical Activity on BMI, Motor Skill Development, and Sleep Quality in Elementary School Children Christ, Annemarie; Rocha, Krysten; Saccà, Angela; Zikri, Khairul
INSPIREE: Indonesian Sport Innovation Review Vol. 7 No. 01 (2026): Innovative Insights into Physical Performance, Tactical Learning, and Child He
Publisher : INSPIRETECH GLOBAL INSIGHT & DPE Universitas Pahlawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53905/inspiree.v7i01.165

Abstract

The  purpose  of  the study. Childhood obesity and physical inactivity represent significant public health challenges affecting multiple dimensions of child health and development, including body mass index (BMI), motor competence, and sleep quality. This longitudinal study examined the effects of a 12-week school-based physical activity (PA) intervention on BMI, motor skill development, and sleep quality in elementary school children, with a one-year follow-up assessment. Materials and methods. A controlled longitudinal design was employed with 143 elementary school children (grades 4–5; M = 10.3 years; SD = 0.8; 48% female) recruited from 6 primary schools. The intervention group (n = 73) participated in an enhanced PA program (additional 120 minutes per week of structured physical activity) for 12 weeks, while the control group (n = 70) maintained regular school curriculum. BMI, motor skill performance (50-meter run, jump rope, sit-and-reach, 1-minute sit-ups), moderate-to-vigorous physical activity (MVPA), and sleep quality (Pittsburgh Sleep Quality Index for children) were assessed at baseline, 12 weeks, and 12 months post-intervention. Results. Repeated-measures ANOVA revealed statistically significant group × time interactions for BMI (F(2, 141) = 18.44, p < 0.001, η² = 0.21), motor skill performance (F(2, 141) = 22.67, p < 0.001, η² = 0.24), and sleep quality (F(2, 141) = 15.32, p < 0.001, η² = 0.18). The intervention group demonstrated a significant BMI reduction (−0.8 kg/m²; p < 0.001), improved motor skills (+19% on composite score; p < 0.001), increased MVPA (+41 minutes/day; p < 0.001), and enhanced sleep quality (+1.8 hours; p = 0.002). Benefits persisted at 12-month follow-up with partial effect maintenance. Conclusions. School-based physical activity interventions of 120 minutes weekly demonstrate significant and sustained positive effects on BMI, motor skill development, and sleep quality in elementary school children. These findings support the implementation of integrated PA programs as an evidence-based strategy for comprehensive child health promotion and obesity prevention.
Peningkatan Hasil Pembelajaran dan Motivasi Dalam Pembelajaran Gerak Dasar Atletik (Lompat Jauh) dengan Metode Bermain Kelas V Sekolah Dasar Zikri, Khairul; Pardilla, Herli
Joska: Jurnal Isori Kampar Vol. 1 No. 01 (2024): March Issue JOSKA: ISORI KAMPAR JURNAL
Publisher : Ikatan Sarjana Olahraga Republik Indonesia (Kabupaten Kampar)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53905/joska.v1i01.05

Abstract

This study aims to enhance educational results in long jump athletics through engaging teaching methods for fifth-grade students. The enjoyable methodology is selected as an effective instructional approach to elevate students' motor skills. The research employs a class action design with two iterative cycles involving planning, execution, observation, and reflection. The sample comprised 30 fifth-grade students. Data collection was conducted systematically through observations, proficiency assessments, and questionnaires. Results indicated significant improvement in long jump performance, with average scores rising from 67.3 in the pre-cycle to 72.2 in cycle I and 78.8 in cycle II. Additionally, student motivation and engagement increased significantly, from 60% participation in the pre-cycle to 90% in cycle II. In conclusion, the playful pedagogical method was effective in enhancing basic motion learning outcomes in long jump athletics for fifth graders.
Ergonomic Analysis in Optimizing Science Learning: Physical Environment Impact on Academic Performance Rambe, Erna Lestari; Zikri, Khairul; Nofrizal, Dedi
IGI in Education Insight Vol. 1 No. 01 (2026): February Issue |IGI in Education Insight (IGI Educ. Ins.)
Publisher : CV. INSPIRETECH GLOBAL INSIGHT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53905/edu.v1i01.01

Abstract

Purpose of the study: This research investigates the relationship between classroom ergonomic conditions and science learning outcomes in elementary schools, aiming to identify optimal physical environmental factors that enhance student academic performance and teacher effectiveness in science education. Materials and methods: A quantitative cross-sectional study was conducted involving 450 students and 45 teachers from 15 elementary schools in Pekanbaru City, Indonesia. Data collection utilized structured questionnaires measuring classroom design adequacy, ergonomic comfort levels, and their perceived impact on science learning. Statistical analysis was performed using SPSS version 29.0, employing descriptive statistics, correlation analysis, and multiple regression modeling. Results: Significant positive correlations were found between ergonomic classroom conditions and science learning outcomes (r = 0.742, p < 0.001). Students in ergonomically optimized environments demonstrated 23.5% higher science achievement scores compared to those in suboptimal conditions. Teacher satisfaction with classroom ergonomics showed strong correlation with instructional effectiveness (r = 0.681, p < 0.001). Key ergonomic factors influencing learning included appropriate furniture sizing (β = 0.312), adequate lighting conditions (β = 0.287), and optimal temperature control (β = 0.245). Conclusions: Ergonomic optimization of elementary school classrooms significantly enhances science learning outcomes. Implementation of evidence-based ergonomic principles in classroom design can substantially improve both student academic performance and teacher instructional effectiveness. These findings support the integration of ergonomic considerations as essential components in educational facility planning and science curriculum delivery.
Co-Authors Christ, Annemarie Dedi Nofrizal Fitrah Qalbina Herli Pardilla Purnama Putra, Randi Purwantono, Purwantono Rambe, Erna Lestari Rocha, Krysten Saccà, Angela