The effect of strength training on IL-6 levels and muscle fitness: an empirical study on sedentary adolescents
Introduction: The global rise in sedentary lifestyles among urban adolescents increases inflammatory markers such as interleukin-6 (IL-6) and decreases physical fitness, necessitating effective interventions. Objective: This study investigated the effects of strength training on IL-6 levels and m...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
FEADEF
2025-07-01
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| Series: | Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación |
| Subjects: | |
| Online Access: | https://revistaretos.org/index.php/retos/article/view/116177 |
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| Summary: | Introduction: The global rise in sedentary lifestyles among urban adolescents increases inflammatory markers such as interleukin-6 (IL-6) and decreases physical fitness, necessitating effective interventions.
Objective: This study investigated the effects of strength training on IL-6 levels and muscular fitness in sedentary urban male adolescents.
Methods: 30 male adolescents (17–20 years, 65–80 kg, 164–175 cm) participated in a pre-test-post-test control group. The treatment group participated in an 8-week strength training program (3 sessions/week, 80% 1RM, 8 repetitions, 5 sets). IL-6 levels were measured using an ELISA kit and muscular fitness was assessed using dumbbell squat tests. Data were analyzed using Wilcoxon and Mann-Whitney tests with SPSS version 25.
Results: The treatment group showed a significant IL-6 reduction (p=0.027, mean difference=7.196) and improved muscular fitness (p=0.010, mean increase=4.5). The control group showed an increased IL-6 level (p=0.001, mean difference=4.835) and low muscular fitness improvement (p=0.001, mean difference=1.6).
Discussion: Strength training effectively reduces inflammation and enhances fitness, consistent with prior exercise research.
Conclusion: Structured strength training significantly improves IL-6 levels and muscular fitness, supporting its role in addressing adolescent sedentarism.
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| ISSN: | 1579-1726 1988-2041 |