year 2, Issue 3 (Autumn 2014)
Ann Appl Sport Sci 2014, 2(3): 23-32 |
Back to browse issues page
1- Department of Physical Education and Sport Science, Mariwan Branch, Islamic Azad University , farajienator@gmail.com
2- Department of Physical Education and Sport Science, Kurdistan University
3- Faculty of Physical Education and Sport Science, Department of Exercise Physiology, Tabriz University
2- Department of Physical Education and Sport Science, Kurdistan University
3- Faculty of Physical Education and Sport Science, Department of Exercise Physiology, Tabriz University
Abstract: (14632 Views)
This study aims to determine the effect of a single exhausting exercise on plasma PYY, NPY and IGF-1 in young athletes. Thirty-one young athletes (aged 19.52±2.75 years, body mass 79.24±16.13 kg, height 173±6.49 cm, and body fat 16.37±5.92%) volunteered to participate in this study. The participations, in randomized crossover manner, performed a single exercise bout on a cycle ergometer at 50 watts (W) for five-minute, and the power output was increased by 30 W every 3 minute until voluntary exhaustion. Venous blood samples were collected before (Pre), immediately after (Post) and 1h after (1h Post) exercise to assess plasma PYY, NPY and IGF-1concentrations. Plasma PYY (p=0.042) and IGF-1 (p=0.001) significantly increased at Post exercise. Also, NPY was increased Post (p=0.001) and for 1h Post (p=0.021) exercise. The exhausting exercise increase plasma PYY concentration and this increase may relate to IGF-1 signals in young athletes. However, increased plasma NPY may not be related to stimulation food intake because it does not penetrate the blood-brain barrier.
Type of Study: Original Article |
Subject:
Sport Physiology and its related branches
Received: 2014/04/8 | Accepted: 2014/11/25
Received: 2014/04/8 | Accepted: 2014/11/25
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |