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The Effect of Two Types of High-Intensity Interval Training on Serum Value of Gh and Igf-1 in Overweight Nurses Publisher



Avazpour S1 ; Kalkhoran JF2 ; Avazpour K3 ; Mohseni F4, 5
Authors
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Authors Affiliations
  1. 1. Sport Biochemistry and Metabolism, Shiraz University, Shiraz, Iran
  2. 2. Exercise Physiology Department, Sport Science Faculty, Tehran University, Tehran, Iran
  3. 3. Department of Sport Management, Payam Noor University of Dehdasht, Dehdasht, Iran
  4. 4. Anesthesia Department, School of Nursing, Gerash University of Medical Sciences, Gerash, Iran
  5. 5. Department of Medical Education, Medical School, Tehran University of Medical Sciences, Tehran, Iran

Source: Asian Journal of Sports Medicine Published:2020


Abstract

Background: Growth hormone and insulin-like growth factor 1 are anabolic hormones that play a vital role in the growth of various physical organs. Exercise is one of the stimuli that affect GH and IGF-1 secretion. Objectives: This study aimed to compare the effect of two types of high-intensity interval training (HIIT) on plasma levels of GH and IGF-l in overweight nurses. Methods: In this study, 27 nurses were voluntarily selected and randomly assigned to three groups (9 participants for each group): 1. HIIT (type 1), including eight seconds of spring running and 12 seconds of active recovery, 2. HIIT (type 2), including a 40-meter shuttle run with maximum speed, 3. control. HIIT (type 1) was performed for four weeks, three sessions per week, each session 6-9 min with more than 90% HRmax. HIIT (type 2) was applied for four weeks, three sessions per week, with more than 90% HRmax. The control group did not participate in any training protocol. The serum value of GH and IGF-1 were compared in three groups. The data were analyzed by the dependent t-test and ANOVA. One-way analysis of variance (ANOVA) was used to analyze the intergroup data at P 〈 0.05. Results: The results showed that HIIT (type 1) and (type 2) significantly increased plasma GH (P = 0.032 in group 2 and P = 0.010 in group 1) and IGF-l (P = 0.004 in group 2 and P = 10.013 in group 1) levels in nurses. The results showed a significant difference in the variables (GH and IGF-l) among HIIT (type 1), HIIT (type 2), and control groups. Conclusions: It can be concluded that four weeks of adverse intermittent exercises are effective in increasing the concentration of GH and IGF-1 serum and decreased percentage body fat in young nurses with overweight, and proportional to the intensity of the exercise protocol response rate is different. © 2020, Author(s).