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All Journal Dharma: Jurnal Pengabdian Masyarakat Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan)
Prijoto, Prijoto
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Education Social Sciences Other

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IMPLEMENTASI METODE CENTRAL STEAM PADA PENINGKATAN PRODUKTIVITAS PENGUSAHA KECIL DI BERBAH, SLEMAN, YOGYAKARTA Putro, Gunawan Madyono; Prijoto, Prijoto
Dharma: Jurnal Pengabdian Masyarakat Vol. 1 No. 1 (2020): Mei
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/dlppm.v1i1.4040

Abstract

Small entrepreneurs producing presto fish processed food in the village of Jogotirto Berbah experience problems in the fish processing process. The pressure tool used has not been optimal considering the length of time it takes to soften the fish and the inefficient fuel. This service program is designed to provide transfer of fish softening technology using the central steam method. Community service was carried out in the village of Jogotirto Berbah Sleman, involving 12 small entrepreneurs. The service provider provides training on using pressure tools with the central steam method for 2 sessions. Pengabdi provides pressure tools for the central steam method to small entrepreneurs and provides assistance for 5 months. The results of applying this method increased productivity by 50% and increased fuel efficiency by 40% so that the income of small entrepreneurs increased by 50% every month.
Evaluation of Changes in VO2max of FTME UPN Students in the First Two Semesters of Study: A Multistage Fitness Test Approach Prijoto, Prijoto; Kurniati, Rizki; Yulianto, Wahyu Wibowo Eko; Indriharta, Lilik; Nugraheningsih, Ginanjar
Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan) Vol. 9 No. 1 (2025): Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan)
Publisher : Physical Education, Health and Recreation Study Program, Universitas Insan Budi Utomo, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/jp.jok.v9i1.2135

Abstract

This study aims to evaluate changes in students' cardiorespiratory capacity at the Faculty of Mineral and Energy Engineering (FTME) UPN "Veteran" Yogyakarta during the first two semesters of the 2024/2025 academic year. Fitness measurements were conducted using the Multistage Fitness Test (MFT) on 154 male students at the beginning of semester 1 and the end of semester 2 to obtain VO2max estimates. During the two semesters, students took Physical Education courses once a week (±100 minutes/session), which included fitness exercises, team sports (basketball, soccer, and handball), and basic motor skills training. The training intensity was moderate and did not apply the principle of progressivity. The analysis showed no significant difference between the pre-test VO2max score (83.05) and the post-test score (83.04; p = 0.978). The stability of this value indicates that the physical activity program that lasted for two semesters did not provide sufficient physiological stimulus to increase aerobic capacity. These findings were analyzed using the principles of overload, diminishing returns, and homeostasis, which state that improving fitness requires progressive and intense exercise stimuli. This study recommends applying structured exercise methods, such as HIIT and periodization, to promote more significant physiological adaptations among engineering students.
Analysis of Stroke Rate and Stroke Length in Relation to Freestyle Swimming Speed Among Indonesian Student Athletes Prijoto, Prijoto; Kurniati, Rizki; Sumintarsih, Sumintarsih; Yulianto, Wahyu Wibowo Eko; Nugraheningsih, Ginanjar
Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan) Vol. 9 No. 2 (2026): Jp.jok (Jurnal Pendidikan Jasmani, Olahraga dan Kesehatan) (In Progress)
Publisher : Physical Education, Health and Recreation Study Program, Universitas Insan Budi Utomo, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/jp.jok.v9i2.3017

Abstract

In competitive swimming, small performance margins make technical regulation a key determinant of race outcomes. Stroke rate (SR) and stroke length (SL) are critical kinematic variables that interact to determine freestyle swimming speed, yet their distance-specific regulation in developing swimmers remains unclear. This study aimed to identify SR-SL profiles across race distances and examine their relative contributions to freestyle speed in Indonesian student-athletes. A cross-sectional observational design was applied to 80 finalist performances across 10 freestyle events. Kinematic data were obtained using mid-pool video analysis, and partial regression analysis assessed the relative effects of SR and SL on swimming speed. The results revealed a clear distance-related shift in stroke regulation. In men, SR decreased from 1.00 to 0.59 cycle·s⁻¹, while SL increased from 1.93 to 2.44 m·cycle⁻¹. In women, SR decreased from 0.96 to 0.63 cycle·s⁻¹, whereas SL increased from 1.78 to 2.19 m·cycle⁻¹. Regression analysis showed that SL was the dominant predictor of speed in most events, particularly in middle- and long-distance races, whereas SR had a stronger influence mainly in sprint events, especially the women’s 50 m. These findings indicate a distance-specific shift from frequency-oriented strategies in sprint events to efficiency-oriented strategies in longer races. Compared with elite swimmers, Indonesian student-athletes rely more on higher SR and shorter SL, likely reflecting developmental and technical constraints. This study highlights that SR-SL regulation is both distance- and development-dependent, with implications for age-appropriate and distance-specific training.
Co-Authors Gunawan Madyono Putro, Gunawan Madyono Kurniati, Rizki Lilik Indriharta, Lilik Nugraheningsih, Ginanjar Sumintarsih, Sumintarsih Yulianto, Wahyu Wibowo Eko