cover
Contact Name
Yuda Syahputra
Contact Email
info@eloracenter.org
Phone
+628116601212
Journal Mail Official
info@eloracenter.org
Editorial Address
Bumi Mutiara Serang, Cluster Symphony, Blok C2 No.18, Serang - Banten - Indonesia 42122
Location
Kota serang,
Banten
INDONESIA
JRTI (Jurnal Riset Tindakan Indonesia)
ISSN : 2502079X     EISSN : 25031619     DOI : 10.29210/30036820000
JRTI (Jurnal Riset Tindakan Indonesia) ISSN: 2502-079X (Print), ISSN: 2503-1619 (Electronic) is a peer-reviewed, open-access journal that publishes research and practice-based research across multidisciplinary fields of knowledge. The journal adopts an integrative and transdisciplinary perspective, welcoming scholarly works that employ systematic cycles of planning, action, observation, and reflection to address real-world challenges and generate measurable improvements in diverse professional and community contexts. JRTI is committed to bridging theory and practice by disseminating actionable knowledge that contributes to institutional development, community empowerment, policy implementation, technological innovation, and sustainable social transformation at local, national, and international levels. The journal embraces contributions from a wide range of scientific clusters, including education and human development; social sciences and humanities; psychology and mental health; public health and well-being; science, technology, engineering, and applied innovation; environmental and sustainability studies; governance, public administration, and policy reform; economic development and entrepreneurship; agriculture and rural advancement; disaster mitigation and resilience; as well as creative and cultural industries. JRTI particularly values studies conducted in authentic field settings such as schools, universities, government institutions, non-governmental organizations, community groups, healthcare facilities, industries, and multi-sector collaborative networks. JRTI welcomes various forms of action-oriented inquiry, including classroom action research, participatory and collaborative action research, community-based interventions, practitioner-led research, institutional improvement projects, organizational development initiatives, and multi-sector transformative programs. Submissions are expected not only to report contextual findings but also to present methodological refinement, innovative intervention models, best-practice frameworks, or scalable solutions that can be adapted and replicated across regions. Through interdisciplinary dialogue and cross-institutional collaboration, JRTI aims to strengthen Indonesia’s capacity for evidence-based decision-making, enhance professional practice across disciplines, and contribute to sustainable development aligned with national priorities and global development goals.
Articles 404 Documents
From youth to elite: a systematic review of physical fitness characteristics that discriminate competitive swimming levels Naluri Denay; Juanda Putra
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 10 No. 4 (2025): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036928000

Abstract

Competitive swimming performance is influenced by interacting anthropometric, neuromuscular, metabolic, and technical characteristics that vary across competitive levels. This systematic review aimed to identify key physical fitness characteristics in competitive swimmers, examine their differences across performance levels, and determine those most consistently associated with superior performance. Following the PRISMA 2020 framework, a systematic search of Scopus was conducted from inception to December 2025. Of 279 records identified, 18 studies met the inclusion criteria and underwent thematic synthesis following methodological quality assessment using Joanna Briggs Institute checklists. Higher-level swimmers consistently demonstrated greater arm span, stature, and lean mass, with the clearest differences observed in youth and junior populations. Muscular strength and lower-body power, particularly measured through countermovement and squat jumps, showed strong and consistent associations with start and sprint performance. Aerobic capacity, maximal swimming velocity, and critical speed increased substantially from junior to senior levels, with critical speed emerging as a strong correlate of junior performance. At elite levels, stroke index, active drag, and start and turn efficiency became increasingly important discriminators. Overall, the findings provide an integrated, competition-level-specific performance profile that may support talent identification, long-term athlete development, and evidence-based training. Standardized longitudinal, multidomain testing that considers stroke- and distance-specific demands is recommended for future research and practice.
Effects of dry-land strength training on swimming performance outcomes in competitive swimmers: a systematic literature review Naluri Denay; Pringgo Mardesia
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 10 No. 4 (2025): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036929000

Abstract

Dry-land strength training is now embedded in the weekly programming of competitive swimmers, yet the specific modalities, loading strategies and dosages that produce the most consistent transfer to swimming performance remain contested. This systematic literature review aimed to (i) map the dry-land strength training interventions applied to competitive swimmers; (ii) characterise their effects on swimming performance outcomes; and (iii) identify the programme characteristics associated with the greatest performance gains. The review was reported in line with the PRISMA 2020 statement. Scopus was searched with a purpose-built Boolean string, limited to English-language original journal articles published between 2021 and 2025 and available as open access, yielding 216 initial records. After removing 15 duplicates, 201 records were screened by title and abstract, 58 reports were sought for retrieval, and 54 full-text reports were assessed against pre-specified PICOS-based eligibility criteria. Twenty studies met all criteria and were retained for qualitative synthesis. Three convergent findings emerged: maximal and heavy-resistance strength training produced the most reproducible gains in sprint and start performance; concurrent dry-land plus in-water training generally outperformed either modality alone for stroke-specific outcomes; and horizontally directed and power-oriented dry-land work showed the strongest transfer to swim start metrics. The review contributes an evidence-informed framework for prescribing dry-land strength work in competitive swimming and highlights the need for larger, longer, standardised trials.
The relationship between student interest and discipline in compulsory school morning exercise programs: a cross-sectional correlational study in an indonesian vocational school Era Oktavia; Eval Edmizal; Tjung Hauw Sin; Anisa Sholiha Mia
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 11 No. 1 (2026): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036930000

Abstract

Regular participation in physical activity is essential for adolescents' physical and psychological well-being. However, students often demonstrate varying levels of participation in school-based physical education programs due to differences in motivation and personal interest. This study examined the relationship between student interest and discipline in participating in the Senam PAHAMI morning exercise program at SMKN 4 Padang, Indonesia. Drawing on Self-Determination Theory and Expectancy-Value Theory, the study hypothesized that higher levels of student interest would be associated with greater discipline. A quantitative correlational research design was employed involving 427 Grade X and XI students, representing the entire eligible population through a census approach. Data were collected using Likert-scale questionnaires measuring student interest and discipline. The instruments demonstrated good internal consistency, with Cronbach's alpha coefficients of 0.82 and 0.85, respectively. Data were analyzed using the Kolmogorov–Smirnov normality test, Pearson product-moment correlation, and the coefficient of determination. The findings indicated moderately high levels of both interest (M = 57.70, SD = 4.62) and discipline (M = 69.33, SD = 5.49). A statistically significant positive correlation was found between student interest and discipline (r = 0.413, p < 0.001). The coefficient of determination showed that student interest explained 17.02% of the variance in discipline, while the remaining variance may be attributed to factors such as teacher supervision, school culture, peer influence, and individual characteristics. These findings support Self-Determination Theory and Expectancy-Value Theory, emphasizing that fostering students' intrinsic interest can enhance discipline in school physical activity programs. The results provide practical implications for physical education teachers and school administrators in promoting student engagement and participation.
Adapted overall equipment effectiveness for evaluating loading and hauling equipment performance in open-pit coal overburden removal Raihan Mhd Indrawan; Riam Marlina; Jukepsa Andas; Rizto Salia Zakri
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 11 No. 1 (2026): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036932000

Abstract

Proper equipment functioning is essential to achieving overburden-removal targets in open-pit coal mining, yet independent assessments of Overall Equipment Effectiveness (OEE) for loading-hauling fleets at small Indonesian coal contractor operations remain scarce. This single-site, single-period descriptive case study quantified the productivity of one excavator and four dump trucks engaged in overburden-removal work at BBMM, Jambi, Indonesia, and simulated the potential productivity gain from raising OEE to the 85% world-class benchmark. Cycle times were sampled from ten independent field observations per hauling unit and four documented sub-phases per loading cycle, cross-checked against company production records. Primary data (cycle time, effective working hours) and secondary data (production targets, equipment records) collected in June 2025 were analyzed descriptively using an adapted OEE formulation (Availability × Utilization × Speed × Bucket Fill Factor) suited to BELT (belt-based excavating, loading, and transport) equipment, followed by scenario-based simulation at 85% OEE. Actual overburden production reached 213,566.96 BCM against a target of 216,036.00 BCM, a shortfall of 2,469.04 BCM (98.86% achievement). Adapted-OEE values across all units ranged from 71.2% to 75.2%, below the 85% benchmark, with utilization identified as the primary limiting factor. The 85% OEE scenario indicated potential productivity gains of up to 8,341 BCM/month for the excavator and 1,606–2,268 BCM/month for the dump trucks, corresponding to a 13–19% possible monthly production increase over current performance. Utilization losses, rather than mechanical unavailability, were found to be the main constraint on fleet efficiency, suggesting that targeted dispatching, reduced standby time, and effective-hour management offer greater production leverage than expanding maintenance staffing. This study offers a diagnostic approach applicable to similar small-fleet coal contractors facing overburden-removal shortfalls.

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