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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang Journal of Physical Education Health and Sport
Kayla Safira Liestyana
Universitas Negeri Semarang
Education Other

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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.
Comparative Effectiveness of Straight Set and Superset Training on Forearm Strength in Handball Athletes Kayla Safira Liestyana; Moch. Fahmi Abdulaziz
Journal of Physical Education Health and Sport Vol. 13 No. 1 (2026)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpehs.v13i1.43922

Abstract

Handball demands that athletes must develop their forearm muscles to succeed at throwing and catching and defending their positions. The research study aimed to assess and compare two weight training methods which included straight sets and supersets to determine their effects on Semarang handball players' forearm strength. The research used a quasi-experimental design which included a control group that participated in pretests and posttests with 25 athletes as study subjects. The subjects were made to undergo a program lasting 6 weeks in which they performed all their exercises on the principle of alternation between straight sets and supersets. The participants were divided into two groups with 12 members in the first group and 13 members in the second group. The researchers used a hand grip dynamometer to measure strength levels because it provided measurement data in kilograms which they obtained before the study and after the study. The statistical analysis used paired and independent sample t-tests at a significance level of  α = 0.05 to show that both training methods produced significant strength gains. The data showed that superset training produced greater improvements than straight set training according to the results. Coaches who want to help their athletes develop forearm muscles should use both methods because both techniques provide value but superset training delivers better results.
Co-Authors Ahmad Sahid Insyagi Moch. Fahmi Abdulaziz Putra Arnanda Ade Kusvian