Hoseini R, Ghasemi F, Sayyah A, Rahmani Ghobadi M. The Effects of Circuit Resistance Training on Plasma Levels of Peptide YY and Ghrelin in Male Athletes. Tabari Biomed Stu Res J 2015; 1 (1) :1-9
URL:
http://tbsrj.mazums.ac.ir/article-1-3442-en.html
1- PhD. Candidate of Exercise Physiology, Faculty of Physical Education & Sport Sciences, University of Guilan, Rasht, Iran
2- PhD. Candidate, Kurdistan University of Medical Sciences, Kurdistan, Iran
Abstract:
Background & Objectives: Ghrelin and peptide YY are orexigenic and
anorexigenic peptides, respectively. They affect feeding behaviours and
play a pivotal role in energy balance and glucose homeostasis. Resistance
training is a key component of physical activity guidelines for weight
control however, there is limited information on the effects of different
intensities of circuit training on appetite. This study aimed to evaluate the
effects of circuit resistance training on plasma levels of ghrelin and peptide
YY (PYY) in male college student athletes.
Materials and Methods: This quasi-experimental study was conducted on
18 male athletes (age range: 22.13 ± 2.11 years, weight: 75.12 ± 4.51 kg,
height: 178.11 ± 5.42 cm) randomly divided into 3 groups. After obtaining
informed consent and completing health record questionnaires, the
subjects received circuit resistance exercise with intensities of 40%, 65%
and 80% 1RM. In addition, blood samples were collected 24 hours before
and 48 hours after the training program. Data analysis was performed
using dependent t-test and analysis of variance (ANOVA), and P<0.05 was
considered as significant.
Results: Plasma levels of peptide YY had a significant increase from 73.32
± 2.51 to 75.7 ± 13.8 kg at the intensity of 80% 1RM (P<0.05), while plasma
levels of ghrelin had a significant decrease from 73.32 ± 2.51 to 75.7 ± 13.8
kg (P<0.05). However, no significant difference was observed between the
intensities of 50% and 65% 1RM in the plasma levels of peptide YY and
ghrelin.
Conclusion: According to the results of this study, circuit resistance
training with 80% intensity could lead to a significant increase in the level
of peptide YY and decrease plasma levels of ghrelin in athletes. However,
further research is required as to identify the acute and chronic side effects
of resistance training.
Type of Study:
Research (Original) |
Published: 2015/07/15 | ePublished: 2015/07/15