| The Effects of General Fatigue on Electromyographic Variables of Selected Trunk muscles in Rowing on Elite Rowers |
| Paper ID : 1243-SSRC-13TH |
| Authors |
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azam daneshvar *1, Heydar Sadeghi2, zohre Borhani Kakhki3 11. PhD in Sports Biomechanics, Faculty of Sports Sciences and Physical Education, Central branch of Azad University, Tehran, Iran. 2Full Professor, Department of Sports Biomechanics, Kinesiology Research Center, Kharazmi University, Tehran, Iran 3Assistant Professor, Department of Sport Biomechanics, Farhangian University, Tehran, Iran. |
| Abstract |
| Background and Aim: Rowing is one of the most popular sports in the world (1). Athletes need high endurance, physical strength and motor coordination to succeed in this field (1). Although rowing is one of the non-contact sports, the prevalence of injuries in different parts of the body is due to repetitive and continuous rowing movements at a high level (2). Muscle fatigue arising from exhaustive exercise is a common phenomenon that occurs amidst exercises in sports activities and impairs the dynamic functioning. The main objective of the present study was to investigate The Effects of one Stage of Exhaustive Global Fatigue of the Electromyography of Elite Rowers' Trunk muscles. Materials and Methods: Fourteen available players of the adult national men's rowing team participated in this study. Electrical activity of the right and left sides of lumbar erector spine muscles was recorded before and after general fatigue exhaustion with rowing on a rowing ergometer device. Dependent t-test or Wilcoxon test was used to statistically compare dependent variables between before and after fatigue (P<0.05). Findings: The results of dependent t-test showed that there were the rectus muscles of the right spine (P = 0.001 and effect size 1.113) and the left trunk (P = 0.002 and effect size 0.676) significantly reduced after fatigue. Wilcoxon test results showed that there was no significant difference in the amount of trunk co-contraction between before and after fatigue (P <0.05). Conclusion: Given the significant effects of fatigue on various electromyographic variables of the trunk muscles, it seems that these changes are likely to have negative effects on performance and increase the risk of injury in these areas. Future studies are necessary to investigate other biomechanical aspects |
| Keywords |
| Keywords: General Fatigue” Electromyography” Trunk Muscles” Rowing. |
| Status: Abstract Accepted |
