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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
Rivista di Medicina, Traumatologia e Psicologia dello Sport
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
ORIGINAL ARTICLES BODY COMPOSITION, NUTRITION
The Journal of Sports Medicine and Physical Fitness 2015 May;55(5):488-94
The evaluation of BMI and serum beta-endorphin levels: the study of acute exercise intervention
Sinaei M. 1, Kargarfard M. 2 ✉
1 Department of Physical Education and Sport Sciences, Islamic Azad University Khorasgan, Isfahan, Iran;
2 Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Isfahan, Isfahan, Iran
AIM: The aim of this study was to compare BMI and the effects of a session of acute exercise on serum beta-endorphin levels among the sprint swimmers and runners.
METHODS: In a semi-experimental study, 15 healthy skilled male swimmers (mean and SD of age: 21.64±2.35, weight: 75.25±9.81 kg, height: 180.31±4.75 cm), and 14 healthy skilled runners (age: 21.38±2.76, weight: 69.78±6.86 kg, height: 182.21±5.22 cm), purposefully and voluntarily participated in this study. Venous blood samples of the subjects were taken in three stages 1) basic conditions; 2) immediately after each field of specialized training, with an intensity equal to 80-85% VO2max 30 minutes after exercise in the fasting state. Data was analyzed using with repeated measures (ANOVA).
RESULTS: The body composition and anthropometric variables assessed in the study were not significantly different between the 2 groups, except BMI, which was significant (P<0.05). The baseline β-endorphin serum levels were significantly higher in swimmers than runners (P=0.009). There were significant differences between levels of beta-endorphin of male sprint runners and swimmers in the three periods before, immediately after and 30 minutes after exercise (P≤0. 05).
CONCLUSION: The results showed that Increased fat storage may underlie the higher BMI observed in swimmers compared to runners and B-Endorphin Serum Levels was in swimmers more than runners and an acute exercise session significantly increases the levels of beta-endorphin serum hormone in sprint swimmers and runners.