DOI QR코드

DOI QR Code

The Comparison of Muscle Activities in the Right Leg during Squatting According to Various Ankle Angles

다양한 발목각도에 따른 스쿼트 시 오른쪽 다리의 근 활성도 비교

  • Ahn, Su-Hong (Department of Biomedical Health Science, Dong-Eui University) ;
  • Lee, Su-Kyoung (Department of Physical Therapy, College of Nersing and Healthcare Sciences, Dong-Eui University) ;
  • Lee, Kwang-Jun (Department of Biomedical Health Science, Dong-Eui University) ;
  • Park, Jin-Seong (Department of Biomedical Health Science, Dong-Eui University) ;
  • Hwang, Jea-Woong (Department of Biomedical Health Science, Dong-Eui University)
  • 안수홍 (동의대학교 보건의과학대학원) ;
  • 이수경 (동의대학교 물리치료학과) ;
  • 이광준 (동의대학교 보건의과학대학원) ;
  • 박진성 (동의대학교 보건의과학대학원) ;
  • 황제웅 (동의대학교 보건의과학대학원)
  • Received : 2017.08.14
  • Accepted : 2017.09.29
  • Published : 2017.12.31

Abstract

Purpose: This study aimed to compare muscle activities in the right leg during squatting on an angle-adjustable inclined wooden plate at three different angles. Methods: The subjects were 19 healthy adult men and women. An angle-adjustable inclined wooden plate was used for the experiment, and the subjects performed squatting at three adjusted angles of $0^{\circ}$ ankle angle, $10^{\circ}$ ankle flexion, and $10^{\circ}$ plantar flexion. Squatting was randomly performed without a sequence. The knee angle was set at $45^{\circ}$, and a goniometer was used to measure the angles accurately. Electromyography was employed to measure and compare muscle activity in the right leg in each condition. The measured data were converted to root mean square values to calculate the muscle activities. Results: This study showed no statistically significant difference at a $0^{\circ}$ ankle angle, but a statistically significant difference was found in the vastus medialis at $10^{\circ}$ of ankle flexion. Moreover, statistically significant differences were observed in the vastus medialis and lateralis at $10^{\circ}$ of plantar flexion. Conclusion: This study showed a statistically significant difference in the vastus medialis at $10^{\circ}$ of ankle flexion and statistically significant differences in the vastus medialis and lateralis at $10^{\circ}$ of plantar flexion. Therefore, it may be effective to perform squatting at $10^{\circ}$ of ankle flexion when intending to selectively strengthen the vastus medialis and at $10^{\circ}$ of plantar flexion when intending to strengthen both the vastus medialis and lateralis.

Keywords

References

  1. Anderson K, Behm D.G. Trunk muscle activity increases with unstable squat movements. Canadian Journal of Applied Physiology. 2005;30(1):33-45. https://doi.org/10.1139/h05-103
  2. Bakhtiary AH, Fatemi E. Open versus closed kinetic chain exercises for patellar chondromalacia. British Journal of Sports Medicine. 2008;42(2):99-102. https://doi.org/10.1136/bjsm.2007.038109
  3. Bohannon RW. Recovery and correlates of trunk muscle strength after stroke. International Journal of Rehabilitation Research. 1995;18(2):162-169. https://doi.org/10.1097/00004356-199506000-00010
  4. Boling, Pudua, Blackburn, et al. Hip adduction does not affect VMO EMG amplitude of VMO: VL ratios during a dynamic squat exercise. Journal of Sport Rehabilitation. 2006;15(3):195-205. https://doi.org/10.1123/jsr.15.3.195
  5. Cha YS. The effects of quadriceps closed kinetic chain exercise with hip adduction on vastus medialis oblique and vastus lateralis oblique muscle activation and onset time. Yonsei University. Dissertation of Master's Degree. 2012.
  6. Cho YH, Choi JH. Muscle activities of the lower extremity based on ankle plantar-flexion in elderly women. The Journal Korean Society of Physical Therapy. 2009;21(4):57-63.
  7. Consitt LA, Copeland JL, Tremblay MS. Endogenous anabolic hormone responses to endurance versus resistance exercise and training in woman. Sports Medicine. 2002;32(1):1-22. https://doi.org/10.2165/00007256-200232010-00001
  8. Cook JL, Khan K, Kiss S, et al. Reproducibility and clinical utility of tendon palpation to detect patellar tendinopathy in young basketball players. Victorian Institute of Sport tendon study group. British Journal of Sports Medicine. 2001;35(1):65-74. https://doi.org/10.1136/bjsm.35.1.65
  9. Cook JL, Khan K, Maffuli N, et al. Overuse tendinosis, not tendinitis part 2: applying the new approach to patellar tendinopathy. Physician & Sports Medicine. 2000;28(6):31-46.
  10. Coqueiro KRR, Bevilaqua GD, Berzin F, et al. Analysison the activation of the VMO and VLL muscles during semisquat exercises with and without hip adduction in individuals with patellofemoral pain syndrome. Journal of Electromyography and Kinesiology: Official Journal of the International Society of Electrophysiological Kinesiology. 2005;15(6):596-603. https://doi.org/10.1016/j.jelekin.2005.03.001
  11. Dionisio VC, Almeida GL, Duarte M, et al. Kinematic, kinetic and EMG patterns during downward squatting. Journal of Electromyography and Kinesiology: Official Journal of the International Society of Electrophysiological Kinesiology. 2008;18(1):134-143. https://doi.org/10.1016/j.jelekin.2006.07.010
  12. Earl JE, Schmitz RJ, Arnold BL. Activation of the VMO and VL during dynamic mini-squat exercises with and without isometric hip adduction. Journal of Electromyography and Kinesiology: Official Journal of the International Society of Electrophysiological Kinesiology. 2001;11(6):381-386. https://doi.org/10.1016/S1050-6411(01)00024-4
  13. Escamilla RF, Fleising GS, Lowy TM, et al. Three-dimensional biomechanicical analisis of the squat during varying stance width. Medicine and Science in Sports and Exercise. 2001;33(6):984-998. https://doi.org/10.1097/00005768-200106000-00019
  14. Floyd R, Thompson C. Manual of structural kinesiology, 15th Ed. New York. McGraw. 2004.
  15. Francis RS, Scott DE. Hypertrophy of the vastus medialis in knee extension. Physical Therapy. 1974;54(10): 1066-1136. https://doi.org/10.1093/ptj/54.10.1066
  16. Grelsamer R, Klenin J. The biomechanics of the patellofemoral joint. Journal of Orthopaedic and Physical Therapy. 1998;28(5):286-297. https://doi.org/10.2519/jospt.1998.28.5.286
  17. Hubbard JK, Sampson HW, Elledge JR. Prevalence and morphology of the vastus medialis oblique muscle in human cadavers. The Anatomical Record. 1997;249(1):135-177. https://doi.org/10.1002/(SICI)1097-0185(199709)249:1<135::AID-AR16>3.0.CO;2-Q
  18. Isear JA, Erickson JC, Worrell TW. EMG analysis of lower-extremity muscle recruitment patterns during an unloaded squat. Medicine and Science in Sports and Exercise. 1997;29(4):532-541. https://doi.org/10.1097/00005768-199704000-00016
  19. Jeong HK. Electromyographic analyses of the effects of three different plates under heel during squat. Kyungpook National University. Dissertation of Master's Degree. 2006.
  20. Kathiresan G, Rayhan AN, Azila AN, et al. The relationship between ankle joint flexibility and squating knee flexion posture in young malaysian men. World Journal of Sport Sciences. 2010;3(1):226-230.
  21. Kim GC, Seo HK. The effect of neuro-muscular control training on vastus medialis oblique activity after menisectomy of knee: case study. Korean Academy of Orthopedic Manual Physical Therapy. 2014;20(1):39-45.
  22. Kisner C, Colby LA. Therapeutic exercise: foundations and techniques, 5th ed. Philadelphia. FA Davis Company. 2007.
  23. Kwon YJ, Park SJ, Kim K. The effect of open and closed chain exercise on lower extremity muscle activity in adults. Journal of the Korean Society of Physical Medicine. 2012;7(2):173-182. https://doi.org/10.13066/kspm.2012.7.2.173
  24. Lee HT, Um SH, Cho DY. Effects of regular exercise on health-related physical fitness and physical self-concept. Korean Journal of Sport Psychology. 2004;15(2):115-128.
  25. Lee JD. The biomechanical changes of the foot and lower extremity depending on dynamic squat types in flatfoot. Daegu University. Dissertation of Doctorate Degree. 2012.
  26. Mathur S, Eng JJ, Maclntyre DL. Reliability of surface EMG during sustained contractions of the quadriceps. Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology. 2005;15(1):102-110. https://doi.org/10.1016/j.jelekin.2004.06.003
  27. Mellor R, Hodges PW. Motor unit synchronization of the vasti muscles in closed and open chain tasks. Archives of Physical Medicine and Rehabilitation. 2005;86(4):716-721. https://doi.org/10.1016/j.apmr.2004.07.354
  28. Na YC. Muscle activity analysis of erector spinae and rectus femoris depending on toe out angles in squat movement. Chungnam National University. Dissertation of Master's Degree. 2013.
  29. Nobre TL. Comparison of exercise open kinetic chain and closed kinetic chain in the rehabilitation of patellofemoral dysfunction: an updated revision. Clinical Medicine and Diagnostics. 2012;2(3):1-5. https://doi.org/10.5923/j.cmd.20120203.01
  30. Oh TY. The effects of squatting exercise with gym ball and wall on lower extremity muscles activation. The Korean Society of Physical Medicine. 2013; 8(4):647-653. https://doi.org/10.13066/kspm.2013.8.4.647
  31. Oplia KA, Wagner SS, Schiowitz S, et al. Postural alignment in barefoot and high-heeled stance. Spine. 1998;13(5):542-549. https://doi.org/10.1097/00007632-198805000-00018
  32. Palmitier RA, An KN, Scott SG, et al. Kinetic chain exercise in knee rehabilitation. Sports Medicine. 1991; 11(6):402-415. https://doi.org/10.2165/00007256-199111060-00005
  33. Peterson MD, Rhea MR, Sen A, et al. Resistance exercise for muscular strength in older adults: a meta-analysis. Ageing Research Reviews. 2010;9(3):226-237. https://doi.org/10.1016/j.arr.2010.03.004
  34. Prince WE. Rehabilitation technique in sports medicine, 3rd ed. New York. McGraw-Hill. 1999.
  35. Selseth A, Dayton M, Cordova ML, et al. Quadriceps concentric EMG activity is greater than eccentric EMG activity during the lateral step-up exercise. Journal of Sport Rehabilitation. 2000;9(2):124-134. https://doi.org/10.1123/jsr.9.2.124
  36. Sharp SA, Brouwer BJ. Isokinetic strength training of the hemiparetic knee: effects on function and spasticity. Archives of Physical Medicine and Rehabilitation. 1997;78(11):1231-1236. https://doi.org/10.1016/S0003-9993(97)90337-3
  37. Sin KM. The effects of squat exercise on the muscle activation and pain in the patients arthrosis of knee. Daegu University. Dissertation of Master's Degree. 2012.
  38. Steinkamp LA, Dillingham MF, Markel MD, et al. Biomechanical consideration on in patellofemoral joint rehabilitation. American Journal of Medicine. 1993;21(3):438-444.
  39. Tang SF, Chen CK, Hsu R, et al. Vastus medialis obliquus and vastus lateralis activity in open and closed kinetic chain exercise in patients with patellofemoral pain syndrome. Archives of Physical Medicine and Rehabilitation. 2001;82(10):1441-1445. https://doi.org/10.1053/apmr.2001.26252
  40. Yoo WG, Lee CH, Lee HJ. Effects of a combined posture of the lower extremity on activity of the vastus medialis oblique muscle and vastus lateralis muscle during static squat exercise. Physical Therapy Korea. 2004;11(3):1-9.