Oral / Poster Presentation File
1فیزیولوژی.دانشکده تربیت بدنی.دانشگاه علامه
21 Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Allameh Tabataba’i University, Tehran, Iran
32Department of Biological Sciences in Sport, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
Materials and Methods: Twelve healthy males (Mean±SD; age, 25.5±3.1 years; Body mass index, 24.21±2 kg/m2) after familiarization and determination of maximum strength 1RM performed the first session. in this session subjects after warm up performed traditional resistance exercise (TRE) at 80% of 1RM included 3 sets of 6 repetitions with 2 min passive recovery, and In the second session an interval resistance exercise (IRE) trial at 60% 1RM (include 3 sets of 6 repetitions) followed by active recovery (1 set of 6 repetitions at 20% of 1 RM). Three blood samples were taken before and immediately after exercise, and after one-hour recovery and were analyzed to measure glucose, insulin, non-esterified free fatty acid (NEFA) and glycerol concentration.
Results:Statistical analyses revealed a significant effect of IRE on insulin concentration. Plasma insulin significantly decreased during recovery after IRE session (P=0.002). Plasma glucose concentration significantly increased during recovery after IRE (P<0.05). No significant differences were observed between responses of NEFA and glycerol to two resistance exercise trails but the concentration of NEFA increased significantly during the recovery period, (P<.05).
Conclusion: We conclude, that IRE leads to more reductions in insulin concentrations during exercise and subsequent recovery and as a results more lipolysis during recovery period than TRE protocol.
