Journal of Research in Rehabilitation Sciences

The Comparison of Electromyographic Activity of Selected Knee and Pelvic Muscles during Pair/Single-Leg Lunge and Squat Movements in Individuals with and without Genu Varum: Quasi-Experimental 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 Associate Professor, Department of Sport Injury and Corrective Exercises, School of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran

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

10.48305/jrrs.2023.26561.0

Abstract

Introduction: The lower limbs are a chain of columns and joints that tolerate the weight of the body. The aim of this study was to compare the electromyographic (EMG) activity of selected knee and pelvic muscles during pair/single-leg lunge and squat movements in individuals with and without genu varum.
Materials and Methods: 36 male students without regular exercise (19-25 years) were divided into two groups: healthy (n = 18) and genu varum (n = 18). EMG device was used to measure the electrical activity of muscles. Statistical analyzes were performed at a significance level of 0.05.
Results: There was a significant difference between two groups in EMG activity value of the gluteus medius (GM) in three movements (pair-leg squat, lunge, and single-leg squat) and in the tensor fasciae latae (TFL) in single-leg squat movement, but between EMG activity in three movements in vastus medialis, vastus lateralis, and crural biceps, no significant difference was observed between the two groups.
Conclusion: There is a significant difference between the EMG activity of GM in three movements (pair-leg squat, lunge, and single-leg squat) and in the TFL in one movement (single-leg squat) in the two groups, which shows the importance of mentioned muscles in the studied movements.

Keywords

  1. Hadi H, Jabal AM, Bagherifard A, Behrouzi A, Safi F, Azimi A, et al. The effect of total knee arthroplasty on hindfoot alignment in patients with severe genu varum and genu valgum. Arch Bone Jt Surg 2020; 8(3): 413-9.
  2. Soheilipour F, Pazouki A, Mazaherinezhad A, Yagoubzadeh K, Dadgostar H, Rouhani F. The prevalence of genu varum and genu valgum in overweight and obese patients: assessing the relationship between body mass index and knee angular deformities. Acta Biomed 2020; 91(4): ahead.
  3. Mortazavi SMJ, Noori A, Vosoughi F, Rezaei DR, Shariyate MJ. Femur originated genu varum in a patient with symptomatic ACL deficiency: A case report and review of literature. BMC Musculoskelet Disord 2021; 22(1): 437.
  4. Ghasemi SA, Zhang DT, Fragomen A, Rozbruch SR. Proximal tibial osteotomy for genu varum: Radiological evaluation of deformity correction with a plate vs external fixator. World J Orthop 2021; 12(3): 140-51.
  5. 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.
  6. Zazulak BT, Ponce PL, Straub SJ, Medvecky MJ, Avedisian L, Hewett TE. Gender comparison of hip muscle activity during single-leg landing. J Orthop Sports Phys Ther 2005; 35(5): 292-9.
  7. Javdaneh N, Minoonejad H, Shirzad E. 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].
  8. Ramsey DK, Snyder-Mackler L, Lewek M, Newcomb W, Rudolph KS. Effect of anatomic realignment on muscle function during gait in patients with medial compartment knee osteoarthritis. Arthritis Rheum 2007; 57(3): 389-97.
  9. Yavuz HU, Erdag D. Kinematic and electromyographic activity changes during back squat with submaximal and maximal loading. Appl Bionics Biomech 2017; 2017: 9084725.
  10. Lee JH, Cynn HS, Kwon OY, Yi CH, Yoon TL, Choi WJ, et al. Different hip rotations influence hip abductor muscles activity during isometric side-lying hip abduction in subjects with gluteus medius weakness. J Electromyogr Kinesiol 2014; 24(2): 318-24.
  11. Taheri B, Barati A, Norasteh A A, Madadi-Shad M. EMG analysis of trunk and lower limb muscles in three different squat exercises in athletes and non-athletes. Int J Sport Stud Hlth 2018; 1(2): e79463.
  12. Boyden G, Kingman J, Dyson R. A comparison of quadriceps electromyographic activity with the position of the foot during the parallel squat. J. Strength Cond Res 2000; 14(4): 379-82.
  13. Hatefi M, Babakhani F, Balouchi R, Letafatkar A, Wallace BJ. Squat muscle activation patterns with hip rotations in subjects with genu varum deformity. Int J Sports Med 2020; 41(11): 783-9.
  14. Martel M, Boulenger V, Koun E, Finos L, Farne A, Roy AC. Body schema plasticity is altered in developmental coordination disorder. Neuropsychologia 2022; 166: 108136.
  15. Neto GR, Novaes JS, Salerno VP, Goncalves MM, Piazera BKL, Rodrigues-Rodrigues T, et al. Acute effects of resistance exercise with continuous and intermittent blood flow restriction on hemodynamic measurements and perceived exertion. Percept Mot Skills 2017; 124(1): 277-92.
  16. Monajati A, Larumbe-Zabala E, Goss-Sampson M, Naclerio F. Surface electromyography analysis of three squat exercises. J Hum Kinet 2019; 67: 73-83.
  17. Di Cesare A, Leva E, Macchini F, Canazza L, Carrabba G, Fumagalli M, et al. Anorectal malformations and neurospinal dysraphism: Is this association a major risk for continence? Pediatr Surg Int 2010; 26(11): 1077-81.
  18. Thabrew H, Stasiak K, Hetrick SE, Wong S, Huss JH, Merry SN. E-Health interventions for anxiety and depression in children and adolescents with long-term physical conditions. Cochrane Database Syst Rev 2018; 8(8): CD012489.
  19. Stien N, Saeterbakken AH, Andersen V. Electromyographic comparison of five lower-limb muscles between single- and multi-joint exercises among trained men. J Sports Sci Med 2021; 20(1): 56-61.
  20. Khaiyat OA, Norris J. Electromyographic activity of selected trunk, core, and thigh muscles in commonly used exercises for ACL rehabilitation. J Phys Ther Sci 2018; 30(4): 642-8.
  21. Muyor JM, Martin-Fuentes I, Rodriguez-Ridao D, Antequera-Vique JA. Electromyographic activity in the gluteus medius, gluteus maximus, biceps femoris, vastus lateralis, vastus medialis and rectus femoris during the Monopodal Squat, Forward Lunge and Lateral Step-Up exercises. PLoS One 2020; 15(4): e0230841.
  22. Letafatkar A, Hatefi M, Babakhani F, Abbaszadeh GH, Wallace B. The influence of hip rotations on muscle activity during unilateral weight-bearing exercises in individuals with and without genu varum: A cross-sectional study. Phys Ther Sport 2020; 43: 224-9.
  23. Nyland J, Smith S, Beickman K, Armsey T, Caborn DN. Frontal plane knee angle affects dynamic postural control strategy during unilateral stance. Med Sci Sports Exerc 2002; 34(7): 1150-7.
  24. Park S, Kong YS, Ko YM, Jang GU, Park JW. Differences in onset timing between the vastus medialis and lateralis during concentric knee contraction in individuals with genu varum or valgum. J Phys Ther Sci 2015; 27(4): 1207-10.
Journal of Research in Rehabilitation Sciences
Volume 17, Issue 1 - Serial Number 1
April 2021
Pages 72-80