MILITARY MANAGEMENT QUARTERLY

MILITARY MANAGEMENT QUARTERLY

The Effect of Eight weeks of high-intensity functional training on exercise -induced muscle damage in students of Imam Ali Military University

Document Type : Research Paper

Authors
امیرحسین صفار کهنه قوچان 1
Sajad Mohammadyari 2
Armin Bagherzadeh 3
1 Assistant Professor, Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Iran .
2 Department of Sports Sciences, Faculty of Basic Sciences, Imam Ali Officers' University, Tehran, Iran
3 Department of Exercise Physiology, University of Tehran
10.22034/iamu.2025.2061163.3186
Abstract
Introduction: Musculoskeletal injuries are among the most common injuries faced by military cadets. Therefore, the purpose of the present study is to investigate the effects of eight weeks of High-Intensity Functional Training on selected markers of cellular damage in cadets of Imam Ali Military University.
Methods: In this semi-experimental study, 45 military cadets were randomly selected and assigned to three groups of 15: HIIT, HIFT, and MICT. All three protocols HIIT (based on running at an intensity of 80 to 90% of maximum heart rate), HIFT (based on functional movements with body weight at an intensity of 80 to 90% of maximum heart rate), and MICT (running at a moderate intensity of 60 to 70% of maximum heart rate) were performed for 8 weeks, 3 days a week, for 30 minutes. Blood samples were taken before and after the exhaustion test (Astrand treadmill) and the levels of creatine kinase and lactate dehydrogenase factors were measured by ELISA. 2×2 ANOVA with Bonferroni post hoc test was used to analyze the data.
Results: The findings showed that HIFT, HIIT, and MICT respectively reduced creatine kinase (CK) levels by 13.62%, 10.20%, and 4.89%, and lactate dehydrogenase (LDH) levels by 18.68%, 15.28%, and 12.52%. Additionally, HIFT was more effective than HIIT in reducing muscle damage indicators.
Conclusion: High-intensity functional training can be more effective in reducing muscle cellular damage, so it is more suitable for military cadets who require high levels of physical fitness.
Keywords
Lactate dehydrogenase
creatine kinase
High intensity interval training
Muscle damage
Subjects
 
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