The Impact of Three-Month Resistance Training, Three-Month Non-Training, and Three-Month Retraining on the Serum Levels of IL-8 in Middle-Aged Men

Document Type : Original Article

Authors

1 Master's Degree in Exercise Physiology, Department of Physical Education, Faculty of Literature and Human Sciences, Lorestan University, Lorestan, Iran

2 Professor of Exercise Physiology, Department of Physical Education, Faculty of Literature and Human Sciences, Lorestan University, Lorestan, Iran

3 Assistant Professor, Sports Physiology, Department of Physical Education, Faculty of Literature and Human Sciences, Lorestan University, Lorestan, Iran

Abstract

Purpose: The study aims to examine the impact of three months of resistance training,
non-training, and retraining on the serum levels of IL-8 in middle-aged men.
Method: In this study, 40 eligible middle-aged men (aged 30 to 50 years) were randomly selected. They were divided into two groups based on anthropometric indicators and maximum repetition of exercise movements: an intervention group (EXE) consisting of 20 individuals, and a control group (CTR) also consisting of 20 individuals. Both groups underwent a training period
(12 weeks), a non-training period (12 weeks), and a retraining period (12 weeks) under the researcher's supervision. Kolmogorov-Smirnov and Lilliefors tests were used to assess data normality and variance homogeneity. The repeated measures analysis of variance test was employed to compare the groups on the studied variables, with a significance level set at P>0.05.
Findings: Based on the results obtained from the analysis of variance test with repeated measurements, 12 weeks of resistance training increases serum levels of IL-8 in middle-aged men. A non-training period (three months) causes these levels to return to their original state. Furthermore, 12 weeks of retraining increased these levels more than the initial training period.
Conclusion: IL-8 is involved in muscle adaptations caused by resistance training in the phenomenon of muscle memory. As a strategy for improving physiological conditions, increasing protein synthesis, and enhancing the strength, volume, and function of muscle mass in middle-aged individuals, it should be considered.

Keywords

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Applied Research in Sports Nutrition and Exercise Science
Volume 1, Issue 2
July 2024
Pages 39-54

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History

  • Receive Date: 10 March 2024
  • Revise Date: 24 April 2024
  • Accept Date: 01 July 2024
  • First Publish Date: 10 July 2024
  • Publish Date: 11 July 2024

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