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Effect of Strength Training on CRP, TNF-α, Muscular Strength, and Cardio -Respiratory Function in Inactive Adolescent Girls
V. Vosoughi[1], F. Moradi[2], H. Aghaalinejad[3], M. Peeri[4]
Received: 07/07/2014 Sent for Revision: 07/01/2015 Received Revised Manuscript: 07/03/2015 Accepted: 08/03/2015
Background and Objective: Protective role of regular physical exercise against chronic metabolic and cardio-respiratory diseases has been attributed to its anti-inflammatory effects. Effect of strength training on adolescents’ inflammatory markers has less been studied. The purpose of this study was to survey the effect of strength training on CRP, TNF-α, muscular strength, and cardio -respiratory function in inactive adolescent girls.
Materials and Methods: In a randomized controlled trial, twenty four inactive adolescent girls were randomly assigned to two training (n=12) and control (n=12) groups. General characteristics of subjects and serum levels of inflammatory markers C-Reactive Protein (CRP) and Tumor Necrosis Factor-alpha (TNF-α) were assessed before and after fourth and eighth weeks of training period. Strength training protocol was included eight weeks weight training. Data were analyzed by two-way repeated measures ANOVA test.
Results: The ANOVA test was not statistically significant for body weight (p=0.089), body mass index (p=0.093), body fat percent (p=0.142), and serum concentrations of CRP (p=0.154) and TNF-α (p=0.287) and the values of these variables did not change after the training. Within-subject, between-subject, and interaction effects for chest press (p=0.047, p=0.023, p=0.016, respectively), semi-squat (p=0.011, p=0.037, p=0.049, respectively), and maximal oxygen uptake (p=0.030, p=0.031, p=0.042, respectively) were statistically significant and the values of these variables were increased at the end of the fourth week, and more, eighth week of training period.
Conclusion: Circulating levels of inflammatory markers didn’t change following strength training (four- and eight-week) in inactive adolescent girls; probably due to lack of impact on body weight and body fat percent. However, the implementation of strength training to improve muscle strength and cardio-respiratory function is recommended for these patients.
Key words: Strength training, CRP, TNF-α, Girls, Adolescent, Inactive
Funding: This research was funded by both Islamic Azad University-Central Tehran Branch and corresponding author.
Conflict of interest: None declared.
Ethical approval: The Ethics Committee of Islamic Azad University-Baneh Branch approved the study.
How to cite this article: Vosoughi V, Moradi F, Aghaalinejad H, Peeri M. Effect of Strength Training on CRP, TNF-α, Muscular Strength, and Cardio-Respiratory Function in Inactive Adolescent Girls. J RafsanjanUniv Med Sci 2014; 14(2): 85-98. [Farsi]
[1]- MSc in Exercise Physiology, Dept. of Exercise Physiology, School of Physical Education and Sport Sciences, Central Tehran Branch-Islamic Azad University, Tehran, Iran
(Corresponding Author) Tel: (0875) 4220350, Fax: (0875) 4225300, E-mail: viyanvosuqi@yahoo.com
[2]- Assistant Prof., in Exercise Physiology, Dept. of Physical Education and Sport Sciences, Saghez Branch-Islamic Azad University, Saghez, Iran
[3]- Associate Prof., in Exercise Physiology, Dept. of Exercise Physiology, School of Physical Education and Sport Sciences, Tarbiat Modarres University, Tehran, Iran
[4]- Associate Prof., in Exercise Physiology, Dept. of Exercise Physiology, School of Physical Education and Sport Sciences, Central Tehran Branch-Islamic Azad University, Tehran, Iran
Received: 2014/04/24 | Accepted: 2015/03/8 | Published: 2015/05/9
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