Jundishapur Scientific Medical Journal

Jundishapur Scientific Medical Journal

The Effect of Selected Aquatic Training on Serum Levels of Insulin-like Growth Factor-1 and Mmyostatin in Middle-aged Male Swimmers

Document Type : Original Article

Author
Assistant Professor. Department of General Courses and Basic Sciences, the College of Maritime Economics and Management, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran.
10.32592/JSMJ.23.2.103
Abstract
Background and Objectives Sarcopenia is one of the important and prevalent disorders that occurs with age and is associated with a significant reduction in muscle strength and volume. The purpose of this study was to investigate the effect of selected aquatic training on serum levels of insulin-like growth factor-1 and myostatin in middle-aged male swimmers. Subjects and Methods Twenty-two men meeting the inclusion criteria were recruited and randomly assigned to either the experimental group (n = 11) or the control group (n = 11). The training program followed a progressive overload structure, employing three sessions per week with escalating difficulty and intensity. This design aligns with the principle of overload, which posits that gradually increasing training demands leads to adaptation and improvement. Plasma levels of IGF-1 and myostatin were measured (before and 48 hours after the protocol). The data were analyzed using the statistical test of covariance (ANCOVA) at a significance level of P<0.05. Results The intragroup evaluation of the data showed that there is a significant difference between the pre-test and post-test scores of the experimental group in IGF-1 and myostatin variables (P<0.05). The results of ANCOVA indicated that the selected aquatic training led to a significant increase in plasma levels of IGF-1 (P<0.05) and a significant decrease in myostatin (P<0.05) in the experimental group compared to the control group. Conclusion According to the results of this research, eight weeks of selected aquatic training changed the resting levels of factors related to muscular atrophy in middle-aged male swimmers. For this reason, this type of exercise can be effective in muscle rehabilitation and improving the physical fitness of these people. However, further investigations seem necessary.
Keywords
Subjects

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Jundishapur
Scientific Medical Journal
May & June 2024. Vol 23. No 2
Rezaeimanesh D. Selected Aquatic Training & Serum Levels of Insulin-like Growth Factor-1 and Mmyostatin. JSMJ. 2024; 23(2):103-113
113
Health Studies in Sport Physiology. 2022 Mar 21;9(1):151-63.
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Volume 23, Issue 2 - Serial Number 149
May and June 2024
Pages 103-113

  • Receive Date 13 February 2024
  • Revise Date 13 March 2024
  • Accept Date 16 March 2024