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All Journal Bioscience Jurnal Konseling dan Pendidikan Journal of Physical Education Health and Sport Jurnal Penelitian Pendidikan IPA (JPPIPA) COUNS-EDU: The International Journal of Counseling and Education JETL (Journal Of Education, Teaching and Learning) Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Menssana Jurnal Sporta Saintika Jurnal Berkarya Pengabdian Masyarakat Pelita Eksakta Sport Science: Jurnal Sain Olahraga dan Pendidikan Jasmani Jorpres (Jurnal Olahraga Prestasi) Jurnal Patriot Jurnal Stamina Indonesian Journal of Sport Management Jurnal Penelitian Pendidikan Indonesia
Syahrastani, Syahrastani
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The Effect of Highland and Lowland Living on Cardiovascular Ability: a Literature Review Purnama, Poni; Arsil, Arsil; Syahrastani, Syahrastani; bafirman, Bafirman; Zarya, Fiky
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.8118

Abstract

This study aims to review the literature related to the influence of living in highlands and lowlands on cardiovascular ability. Highlands, with an altitude of more than 2,500 meters above sea level, have unique environmental characteristics such as lower oxygen levels, lower air pressure, and cooler temperatures. In contrast, lowlands typically have more stable conditions and higher oxygen levels. These environmental differences are believed to have a significant impact on an individual's cardiovascular ability. In this literature review, we evaluated various studies comparing cardiovascular parameters such as aerobic capacity, VO2 max, resting heart rate, and other physiological adaptations between populations living in highlands and lowlands. The results of various studies show that individuals living at high altitudes tend to have better physiological adaptations in terms of oxygen use efficiency and higher aerobic capacity. This is due to the body's adaptation to chronic hypoxia, which increases red blood cell production and oxygen transport efficiency. However, there are also some higher cardiovascular challenges at high altitudes, such as an increased risk of pulmonary hypertension and heart disease. In contrast, low-lying populations generally show more stable cardiovascular parameters but are less adaptive to hypoxia conditions. In conclusion, living at high altitudes and lowlands exert different influences on cardiovascular ability, with each environment providing its own advantages and challenges. More research is needed to understand deeper adaptation mechanisms and their implications for long-term cardiovascular health
Empowering Members of The Ikhwatunnisa Women Farmers Group in Padang Through Training and Mentoring in Nata De Coco Production Advinda, Linda; Irdawati, Irdawati; Handayani, Dezi; Violita, Violita; Chatri, Moralita; Larashinda, Mentari; Syahrastani, Syahrastani
Pelita Eksakta Vol 8 No 2 (2025): Pelita Eksakta, Vol. 8, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol8-iss2/287

Abstract

– Coconuts, a major commodity in West Sumatra, often produce wasted coconut water, which causes pollution. To address this issue, training was conducted for member of the Ikhwatunnisa Women Farmers Group on how to make nata de coco from this waste. Nata de coco, a functional food, is produced by fermenting coconut water using Acetobacter xylinum bacteria. The training aimed to empower Ikhwatunnisa Women Farmers Group members with skills to start businesses, create jobs, and increase family income. The training included lectures, demonstrations, and hands-on practice, covering everything from preparation to packaging. Evaluations showed high participant enthusiasm; 85% gained new insights and planned to produce nata de coco independently. This activity is expected to encourage new businesses and transform coconut water waste into a valuable economic product.
Analysis of physical and psychological factors in the context of Pencak Silat education for students Muhammad Ridho Pambudi Pambudi; Syahrastani Syahrastani; Alnedral Alnedral; Tjung Hauw Sin
JPPI (Jurnal Penelitian Pendidikan Indonesia) Vol. 11 No. 3 (2025): JPPI (Jurnal Penelitian Pendidikan Indonesia)
Publisher : Indonesian Institute for Counseling, Education and Theraphy (IICET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/020256432

Abstract

This aims study investigates the influence of leg muscle power, flexibility, and self-confidence on the crescent kick speed of Pencak Silat athletes at the Laskar Silat Nusantara School in Kampar Regency. Employing a quantitative correlational design, the research involved 30 student-athletes selected through purposive sampling. Data were collected using standardized measurements: vertical jump for leg muscle power, sit-and-reach for flexibility, a psychological scale for self-confidence, and a stopwatch-based crescent kick speed test. Data analysis included descriptive statistics, Pearson product–moment correlation, and multiple regression. The findings show significant positive correlations between crescent kick speed and leg muscle power (r = 0.63), flexibility (r = 0.54), and self-confidence (r = 0.48). Multiple regression analysis further indicates that the three variables collectively contribute significantly to kick speed (p < 0.05), explaining 58% of its variance (R² = 0.58). Leg muscle power was identified as the strongest predictor. These results highlight the importance of integrating physical conditioning and psychological development to enhance technical performance. The study underscores the need for training programs that balance strength, flexibility, and mental readiness in martial arts education.
Co-Authors Abdul Razak Ali Umar Alnedral Alnedral Andi Furnandi Andica, Ultrio Lipu ANDRIA, YOGI Anni Faridah April Yanti Dwi Putri Ardo, Okilanda Argantos, Argantos Arsil Arsil, Arsil Asep Sujana Wahyuri Azwir Anhar Bafirman HB Bahtra, Ridho Camelisa, Reffie Chaeroni, Ahmad Damrah Dezi Handayani Eddy Marheni Eri Barlian Fajri Kamal Fiky Zarya Firman Firman Firman Firman Gusril Gusril Gusril, Gusril Hendri Neldi Hidayat, Rezky Irdawati Irdawati Larashinda, Mentari Linda Advinda M. Ereizky Dwi Fadillah .S. Masrun masrun Meiriani Armen Mirwanto, Doni Monica Dara Pratiwi Moralita Chatri Mualif, Alhadj Muhammad Ridho Pambudi Pambudi Novianti, Puput Eka Nugroho Susanto Nuridin Widya Pranoto Nurul Ihsan Pitnawati . Pratama, Sandi Fransisco Purnama, Poni Putri, Ella Paramitha Rahmi, Elva Reffie Camelisa Roma Irawan Sagurung, Mariance Dartiani Sazeli Rifki, Muhamad Sefina, Nadia Syahrial Bakhtiar Syamsuar Abbas Tjung Hauw Sin Valofi, Nagra Aulia Violita Violita Wilda Welis Yendrizal, Yendrizal Yogi, Afrisandy Pratama Yovhandra Ockta Yuni Ahda Yusrina Tambunan Zarya, Fiky Zulbahri, Zulbahri