Journal of Research in Rehabilitation Sciences

Comparison of Electromyographic Activity of Selected Muscles on One Repetitione Maximum in the Sumo and Conventional Deadlifts in National Power-Lifting Athletes: A Cross-Sectional Study

Document Type : Original Articles

Authors

1 MSc Student, Department of Sport Injury and Corrective Exercises, School of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran

2 Assistant Professor, Department of Sport Injury and Corrective Exercises, School of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran

3 Associate Professor, Department of Sport Injury and Corrective Exercises, School of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran

10.22122/jrrs.v16i0.3441

Abstract

Introduction: Deadlift is an effective exercise to increase the strength of knee and hip extensors. The aim of the present study is to compare the electromyographic activity record during one repetitione maximum (1RM) movement in the sumo and conventional deadlifts in national power-lifting athletes.Materials and Methods: Eight elite male powerlifters were selected from the Iran’ national team. The selected subjects performed Sumo and conventional deadlift motions with an intensity of 80% of 1RM. While performing each exercise, surface electromyographic activity of Gluteus maximus, Vastus medialis and lateralis, and Erector spinae muscles were recorded using wireless electromyography (EMG). For intra-group comparison of muscle activity in two states, paired t-test was administered at a significance level of 0.05.Results: The results of the present study showed that the muscle activity was not significantly different between muscle co-contraction pattern in the dominant and non-dominant lower exterimities in the Sumo and conventional deadlifts (P > 0.05). There was a significant difference between the muscle contraction pattern in 1RM in the Sumo and conventional movements for vastus medialis (dominant leg P ≤ 0.038, non-dominant leg P ≤ 0.047) and erector spine muscles (dominant leg P ≤ 0.032, non-dominant leg P ≤ 0.037 ), in contracst to that of vastus lateralis and gluteus maximus (P > 0.05).Conclusion: According to the results, both vastus medialis and erector spi e muscles can be specifically strengthened in the Sumo and conventional deadlift movements. To design a training protocol for corrective and rehabilitation purposes in the deadlift movement, trainers and therapists must pay attention to these changes in the electromyographic activity of the muscles.

Keywords

  1. Nijem RM, Coburn JW, Brown LE, Lynn SK, Ciccone AB. Electromyographic and force plate analysis of the deadlift performed with and without chains. J Strength Cond Res 2016; 30(5): 1177-82.
  2. Choe K. Kinetic Differences between a back squat and deadlift in collegiate aged lifters. Ann Arbor, MI: ProQuest; 2017.
  3. Jones MT, Jagim AR, Haff GG, Carr PJ, Martin J, Oliver JM. Greater strength drives difference in power between sexes in the conventional deadlift exercise. Sports (Basel) 2016; 4(3): 43.
  4. Swinton PA, Stewart A, Agouris I, Keogh JW, Lloyd R. A biomechanical analysis of straight and hexagonal barbell deadlifts using submaximal loads. J Strength Cond Res 2011; 25(7): 2000-9.
  5. Lee S, Schultz J, Timgren J, Staelgraeve K, Miller M, Liu Y. An electromyographic and kinetic comparison of conventional and Romanian deadlifts. J Exerc Sci Fit 2018; 16(3): 87-93.
  6. Turner B. Observation and analysis of deadlift performance among elite powerlifters [MSc Thesis]. Charleston, IL: Eastern Illinois University; 2004. p. 57-65.
  7. Escamilla RF, Francisco AC, Kayes AV, Speer KP, Moorman CT 3rd. An electromyographic analysis of sumo and conventional style deadlifts. Med Sci Sports Exerc 2002; 34(4): 682-8.
  8. Carbe J, Lind A. A kinematic, kinetic and electromyographic analysis of 1-repetition maximum deadlifts. Goteborg, Sweden: University of Goteborg; 2014. p. 2-12.
  9. Bezerra E, Simúo R, Fleck S, Paz G, Maia M, Costa P, et al. Electromyographic activity of lower body muscles during the deadlift and stiff-legged deadlift. J Exerc Physiol Online 2013; 16(3): 30-9.
  10. Peng HT, Kernozek TW, Song CY. Muscle activation of vastus medialis obliquus and vastus lateralis during a dynamic leg press exercise with and without isometric hip adduction. Phys Ther Sport 2013; 14(1): 44-9.
  11. Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol 2000; 10(5): 361-74.
  12. Choi B, Kim M, Jeon HS. The effects of an isometric knee extension with hip adduction (KEWHA) exercise on selective VMO muscle strengthening. J Electromyogr Kinesiol 2011; 21(6): 1011-6.
  13. Irish SE, Millward AJ, Wride J, Haas BM, Shum GL. The effect of closed-kinetic chain exercises and open-kinetic chain exercise on the muscle activity of vastus medialis oblique and vastus lateralis. J Strength Cond Res 2010; 24(5): 1256-62.
  14. Coqueiro KR, Bevilaqua-Grossi D, Berzin F, Soares AB, Candolo C, Monteiro-Pedro V. Analysis on the activation of the VMO and VLL muscles during semisquat exercises with and without hip adduction in individuals with patellofemoral pain syndrome. J Electromyogr Kinesiol 2005; 15(6): 596-603.
  15. Konrad P. The ABC of EMG: A practical introduction to kinesiological electromyography. Scottsdale, AZ: Noraxon INC; 2005.
  16. Javdaneh N, Minoonejad H, Shirzad E, Javdaneh N. The investigation of the muscle timing of anterior cruciate ligament agonist and antagonist muscles in athletes with hyper pronated feet. J Mil Med 2016; 17(4): 257-64. [In Persian].
  17. Chappell JD, Creighton RA, Giuliani C, Yu B, Garrett WE. Kinematics and electromyography of landing preparation in vertical stop-jump: risks for noncontact anterior cruciate ligament injury. Am J Sports Med 2007; 35(2): 235-41.
  18. Sykes K, Wong YM. Electrical activity of vastus medialis oblique muscle in straight leg raise exercise with different angles of hip rotation. Physiotherapy 2003; 89(7): 423-30.
  19. Nicholas Z, Peacock C, Silver T. Comparison of forearm flexor bundle EMG activity between various hand-grips during the deadlift exercise. Med Sci Sports Exerc 2014; 46(5S): 533.
  20. Troubridge MA. The effect of foot position on quadriceps and hamstrings muscle activity during a parallel squat exercise [MSc Thesis]. London, ON: The University of Western Ontario; 2000.
  21. Vuillerme N, Pinsault N, Vaillant J. Postural control during quiet standing following cervical muscular fatigue: effects of changes in sensory inputs. Neurosci Lett 2005; 378(3): 135-9.
  22. Bougie TL. Movement system impairment syndromes of the extremities, cervical and thoracic spines. Manual Therapy 2012; 17(2): 196.
Journal of Research in Rehabilitation Sciences
Volume 16, Issue 1 - Serial Number 1
April 2020
Pages 80-86