نشریه علمی پژوهشی طب انتظامی Journal of Police Medicine
Volume 14, Issue 1 (2025)
J Police Med 2025, 14(1) |
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Ethics code: SSRI.REC-2302-2110
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falahnezhad mojarad A, salmannasab H, salmannasab F. The effect of twelve weeks of strength and plyometric training on the health index levels of IGF-1, IGFBP-3, and IL-6 in inactive obese men.. J Police Med 2025; 14 (1) : e4
URL: http://jpmed.ir/article-1-1325-en.html
URL: http://jpmed.ir/article-1-1325-en.html
1- faraja , amirfalah.sport@gmail.com
2- Azad University, Nutrition Islamic
3- Islamic Azad, , Islamshahr Branch
2- Azad University, Nutrition Islamic
3- Islamic Azad, , Islamshahr Branch
English Extended Abstract: (9 Views)
Aims: Having proper physical fitness is effective in preventing diseases such as obesity and improving the quality of life, and hormones are very important in this regard due to their metabolic role. Strength training increases strength through neural adaptations such as changes in motor unit coordination, motor unit recruitment, and frequency of stimulation, and the results of plyometric training exercises are achieved by high-power muscle contractions in response to a workload and with dynamic and rapid stretching of the involved muscles. Sometimes obese people hesitate in choosing the type of exercise to find a solution to weight loss and health. Therefore, the present study aimed to solve this problem by examining the effect of twelve weeks of strength and plyometric training on the levels of factors related to growth hormone IGF-1, IGFBP-3, and the inflammatory index IL-6 in inactive obese men.
Materials and Methods: The present study was conducted using a pretest-posttest design with a control group and random distribution. The statistical population of this study was 60 inactive obese men aged 25 to 35 years with an average body mass index of 32.45, who were divided into three groups of 20 each: strength training, plyometric training, and control group. The training groups received a conventional training program under the supervision of researchers for 12 weeks, with three sessions per session. Blood tests were taken from the subjects 24 hours before the start of the training and 24 hours after the last training session. The data were analyzed using the Shapiro-Wilk test to determine the normality of the distribution, and one-way ANOVA to examine the changes, and the t-test to examine the changes between groups.
Findings: The results of analysis of variance showed that plyometric training led to a significant increase in IGF-1 and IGFBP-3 levels compared to the control group (P<0.05). Also, strength training significantly increased the inflammatory index IL-6 and IGFBP-3 (P<0.05), while plyometric training had no significant effect on the IL-6 index.
Conclusion: Due to the nature of the training and its better effect on growth hormone-related factors, plyometric training has a greater effect, and considering the lack of effect on IL-6 factor, these exercises can be appropriately and regularly included in the exercise program of individuals to improve body health indicators.
Materials and Methods: The present study was conducted using a pretest-posttest design with a control group and random distribution. The statistical population of this study was 60 inactive obese men aged 25 to 35 years with an average body mass index of 32.45, who were divided into three groups of 20 each: strength training, plyometric training, and control group. The training groups received a conventional training program under the supervision of researchers for 12 weeks, with three sessions per session. Blood tests were taken from the subjects 24 hours before the start of the training and 24 hours after the last training session. The data were analyzed using the Shapiro-Wilk test to determine the normality of the distribution, and one-way ANOVA to examine the changes, and the t-test to examine the changes between groups.
Findings: The results of analysis of variance showed that plyometric training led to a significant increase in IGF-1 and IGFBP-3 levels compared to the control group (P<0.05). Also, strength training significantly increased the inflammatory index IL-6 and IGFBP-3 (P<0.05), while plyometric training had no significant effect on the IL-6 index.
Conclusion: Due to the nature of the training and its better effect on growth hormone-related factors, plyometric training has a greater effect, and considering the lack of effect on IL-6 factor, these exercises can be appropriately and regularly included in the exercise program of individuals to improve body health indicators.
Article number: e4
Article Type: Original Research |
Subject:
Police Related Trauma
Received: 2025/09/5 | Accepted: 2025/12/28 | Published: 2026/07/8
Received: 2025/09/5 | Accepted: 2025/12/28 | Published: 2026/07/8
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