Effects of training time on serum immunoglobulin alterations and cortisol testosterone responses in male athlete students

Journal Title: Biology of Sport - Year 2010, Vol 27, Issue 1

Abstract

The purpose of this study was to examine the effect of incremental continuous running as well as morning vs evening-time training on changes in serum immunoglobulins including IgA, IgG, IgM, testosterone, and cortisol hormones responses. For this reason, 28 male athletic students were purposefully selected and randomly divided into the two groups; morning-time training group (n=14, weight=68.2±9.8kg, age=19.5±1.6 years, training time=7: 30 AM) and evening-time training group (n=14, weight=63.8±8.4 kg, age=19.81±1.24 years, training time =16:30 PM). The participants were trained according to an incremental continuous running program with a certain heart rate for two months (16 sessions). To determine the amount of serum immunoglobulins as well as cortisol and testosterone hormones, the participants’ blood samples was taken twice, once 24 hours before the first training session and once 24 hours after training session. Then, a 12 – minute running-walking test was used to measure the maximal oxygen consumption. The results showed there were not any significant differences between the amounts of IgA, IgM, IgG serum of both groups in pre-test and post-test (i.e., respectively, p=0.727, p=0.068, p=0.14). Also, there were not any significant differences between the amounts of testosterone and cortisol hormones secreted of both groups in pre-test and post-test. However, there were significant differences between the concentrations of cortisol hormone of the two groups in pre-test (p=0.006) and post-test (p=0.0001). More ever, the results also showed a significant difference between the pre-test of the morning-time training group and the post-test of the evening-time training group (p=0.0001). The findings of this research indicate that cortisol hormone is influenced by the time of training, which is due to circadian rhythm.

Authors and Affiliations

MJ Pourvaghar, AA Ghaeini, MR Kordi

Keywords

Related Articles

CUE USAGE IN VOLLEYBALL: A TIME COURSE COMPARISON OF ELITE, INTERMEDIATE AND NOVICE FEMALE PLAYERS

This study compared visual search strategies in adult female volleyball players of three levels. Video clips of the attack of the opponent team were presented on a large screen and participants reacted to the final pass...

POLYMORPHISM OF THE α-ACTN3 GENE IN INDIVIDUALS PRACTISING DIFFERENT SPORTS DISCIPLINES

In this study the R577X polymorphism of the α-actinin-3 (ACTN3) gene was analysed in relation to physical fitness measured with maximal oxygen uptake (VO2max). The studies were carried out in a group of 154 men and 85 wo...

Self- image as a performer in perception of the steroid “beneficiaries”

The aim of the present study was to assess differences between the current and former users of anabolic steroids (AS) and the control subjects in the following cognitive processes describing one’s self-image as a perform...

Sprint, agility, strength and endurance capacity in wheelchair basketball players

The aims of the present study were, firstly, to determine the reliability and reproducibility of an agility T-test and Yo-Yo 10 m recovery test; and secondly, to analyse the physical characteristics measured by sprint, a...

EFFECTS OF NEUROMUSCULAR RESPONSES DURING WHOLE BODY VIBRATION EXERCISE WITH DIFFERENT KNEE ANGLES

The purpose of this study was to compare the effects of whole body vibration (WBV) exercise using different knee angles on three-dimensional acceleration received in the lumbar region and neuromuscular activation of 8 mu...

Download PDF file
  • EP ID EP58988
  • DOI -
  • Views 123
  • Downloads 0

How To Cite

MJ Pourvaghar, AA Ghaeini, MR Kordi (2010). Effects of training time on serum immunoglobulin alterations and cortisol testosterone responses in male athlete students. Biology of Sport, 27(1), 25-28. https://europub.co.uk/articles/-A-58988