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All Journal Jurnal PORKES Didaktik : Jurnal Ilmiah PGSD STKIP Subang
Ahmad Sahid Insyagi
Universitas Negeri Semarang
Education

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AKLIMATISASI PANAS, DINGIN, DAN HIPOKSIA DALAM LATIHAN FISIK: TINJAUAN LITERATUR RESPONS FISIOLOGIS ATLET Kayla Safira Liestyana; Ahmad Sahid Insyagi; Putra Arnanda Ade Kusvian
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 04 (2025): Volume 10 No. 04 Desember 2025 In Progress
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i04.9838

Abstract

Exposure to environmental stressors such as heat, cold, and hypoxia induces substantial physiological strain on the cardiovascular, thermoregulatory, and respiratory systems. Recent research has shifted from studying isolated stress responses to exploring cross-adaptation, a phenomenon in which adaptation to one stressor enhances tolerance to another. This review synthesizes empirical findings from key studies investigating cross-adaptation mechanisms, particularly between heat and hypoxia, and their implications for athletic performance. Evidence from Gibson et al. (2017) and Willmott et al. (2024) demonstrates that heat acclimation improves hematological stability, increases plasma volume, enhances oxygen saturation, lowers heart rate, and reduces core and skin temperatures during exercise in hypoxic environments. Conversely, hypoxia acclimation has shown potential benefits for both normothermic and heat conditions, although performance effects remain inconsistent. Mechanistic insights indicate that thermoregulatory adjustments—such as earlier sweating onset and increased skin blood flow—play an important role in supporting physiological stability during combined heat and hypoxia exposure. These interactions hold practical relevance for athletes and physically demanding occupations with limited access to prolonged altitude training. This integrative review aims to compile physiological mechanisms, performance outcomes, and practical applications of cross-adaptation to evaluate its viability as an alternative or complementary strategy for preparing individuals for extreme environmental conditions.
PENGEMBANGAN MODEL PEMBELAJARAN GERAK BERIRAMA “PAKEM” PADA SISWA SEKOLAH DASAR NEGERI DI KABUPATEN MAGELANG Ahmad Sahid Insyagi; Roas Irsyada
Jurnal Porkes Vol 9 No 2 (2026): PORKES
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/porkes.v9i2.34356

Abstract

The teaching of rhythmic movement in Physical Education (PJOK) at elementary schools still faces challenges in the form of low student engagement and a lack of variety in teaching strategies, resulting in suboptimal learning outcomes. This study aims to develop a PAKEM-based (Active, Creative, Effective, and Enjoyable) rhythmic movement learning model and to test its effectiveness in improving students’ learning processes and outcomes. The method used was Research and Development (R&D) employing the ADDIE model through the stages of analysis, design, development, implementation, and evaluation. The pilot study was conducted at SDN Giripurno 1, Magelang Regency, involving 23 students in the small-scale trial and 37 students in the large-scale trial. The results of the small-scale pilot test showed achievement percentages of 79% for psychomotor skills, 74% for cognitive skills, and 80% for affective skills. In the large-scale pilot test, the results were 76% for psychomotor skills, 70% for cognitive skills, and 81% for affective skills. The N-Gain test increased from 0.68 (moderate) to 0.72 (high), and the t-test revealed a significant difference between the pretest and posttest (p < 0.05). In conclusion, the PAKEM-based rhythmic movement learning model is deemed highly feasible and effective in enhancing student participation and learning outcomes in Physical Education (PJOK) instruction at the elementary school level.
Co-Authors Kayla Safira Liestyana Putra Arnanda Ade Kusvian Roas Irsyada