Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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The Effects of Lower Limb and Trunk Muscle Activation on Seat Angle and Height during Sit to Stand and Stand to Sit

시트의 각도 및 높이가 앉고 서기 시 하지 및 몸통의 근활성도에 미치는 영향

  • Kim, Byeong-Jo (Department of Physical Therapy, College of Nersing and Healthcare Sciences, Dong-Eui University) ;
  • Lee, Su-Kyoung (Department of Physical Therapy, College of Nersing and Healthcare Sciences, Dong-Eui University) ;
  • Lee, Jung-Hoon (Department of Physical Therapy, College of Nersing and Healthcare Sciences, Dong-Eui University) ;
  • Kwon, Hae-Yeon (Department of Physical Therapy, College of Nersing and Healthcare Sciences, Dong-Eui University)
  • 김병조 (동의대학교 의료보건대학 물리치료학과) ;
  • 이수경 (동의대학교 의료보건대학 물리치료학과) ;
  • 이정훈 (동의대학교 의료보건대학 물리치료학과) ;
  • 권해연 (동의대학교 의료보건대학 물리치료학과)
  • Received : 2015.10.13
  • Accepted : 2015.10.26
  • Published : 2015.11.30
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Abstract

PURPOSE: This study investigated the effects of lower limb and trunk muscles activation on seat angle and height during sit to stand and stand to sit. METHODS: Subjects were instructed to sit and stand on different angles and heights; $0^{\circ}$(43cm), $5^{\circ}$(48cm), $10^{\circ}$(51cm) and $15^{\circ}$(58cm). Measurements were conducted from sit to stand and stand to sit for external oblique, transversus abdominis, rectus femoris, vastus medialis, vastus lateralis, tibialis anterior and gastrocnemius muscle activation by surface EMG. The muscle activation was measured three times for five seconds in each posture, and the %RVC value was calculated after the exclusion of one second before and after this measurement. This calculation standardized the data from each participant so it could be comparatively analyzed. RESULTS: The external oblique, tibialis anterior, and erector spinae muscles showed significant difference in $10^{\circ}$(51cm), $15^{\circ}$(58cm) and $0^{\circ}$(43cm), rectus femoris, in $15^{\circ}$(58cm) and $0^{\circ}$(43cm)(p<.05) during sit to stand. The external oblique, tibialis anterior, and rectus femoris muscles showed significant difference in $0^{\circ}$(43cm) and $15^{\circ}$(58cm), erector spinae and vastus medialis muscles showed significant difference in $10^{\circ}$(51cm), $15^{\circ}$(58cm) and $0^{\circ}$(43cm)(P<.05) during stand to sit. CONCLUSION: The present study findings indicate that the toilet seat angle and height could affect muscle activities of the lower limb and trunk.

Keywords

References

  1. Baer GD, Ashburn AM. Trunk movements in older participants during sit-to-stand. Arch phys med Rehabil. 1995;76(9):844-9. https://doi.org/10.1016/S0003-9993(95)80550-8
  2. Chamberlain MA, Munton. J. Designing chairs for the disabled arthritic. Br J Rhematol. 1984;23:304-8. https://doi.org/10.1093/rheumatology/23.4.304
  3. Choi JD, Kwon OY, Yi CH, et al. Kinematic and EMG analysis of sit-to-stand with changes of pelvic tilting. Phys Ther Korea. 2003;10(2):99-110.
  4. Hwang SJ, Son JS, Kim JY, et al. Analysis of Joint Movements and Changes of Muscle Length During STS(sit-tostand) at Various Sitting Heights in the Korean Elderly's daily life. J. Biomed. Eng. Res 2008;29(6): 484-92.
  5. Levangie PK, Norkin CC. Joint structure and function : a comprehensive analysis(4TH ed). FA Davis, philadelphia. 2005:355-91.
  6. Mak Y, Levin O, Mizrahi J, et al. Joint Torques during sit-to-stand in healthy subjects and people with parkinson's disease. Clin Biomech. 2003;18(3); 197-206. https://doi.org/10.1016/S0268-0033(02)00191-2
  7. Kang MH, Kim JW, Yoon JY, et al. The effect of changes on patella height using infra-patellar strap on the EMG activity of quadriceps muscle during a squat exercise in adults with patellar baja. Phys Ther Korea. 2012;19(1):37-45. https://doi.org/10.12674/ptk.2012.19.1.037
  8. Kim DH, Park SM, Jeon DY. Kinetic and kinematic comparison of sit-to-stand movement between healthy young and elderly. J Korean Acad Rehab Med. 2006;30(4): 385-91.
  9. Kim JH, Chun KJ, Hong JS, et al. A study on evaluation of seat pan inclination during sit-to-stand for development of elderly lifting-chair. Gerontechnology Center. KITECH. 2010.
  10. Kim SY, Kwon JH. Lumbar stabilization exercises using the sling system. The Journal of Korea Academy of Orthopedic Manual Therapy. 2001;7(2):23-38.
  11. Lee GY, Yoon TL, Kim GS, et al. EMG activity of abdominal muscles during lumbopelvic stabilization exercises. Phys Ther Korea. 2014;21(2):1-7. https://doi.org/10.12674/ptk.2014.21.2.001
  12. Park S. Biomechanical analysis of the quadriceps femoris according to the knee alignment in young adults. Doctor's Degree. Daegu Catholic University. 2013.
  13. Park YH. Influence risk of falls in elders who live at home. J of Korean Gerontological Nursing. 2004;6(2):170-8.
  14. Schneider EI, Guranlink JM. The aging of America: impacton health care costs. JAMA. 1999;263(17):2335-40. https://doi.org/10.1001/jama.1990.03440170057036
  15. Youm CH, Kim TH. Effects of induced fatigue of ankle joint muscle on the capability and recovery of postural control during single-leg stance. Korean journal of sport biomechanics. 2012;22(2):219-28. https://doi.org/10.5103/KJSB.2012.22.2.219
  16. Yu YJ, Lim BO. Kinematic analysis of rising from a chair in healthy and stroke subjects. Korean Journal of Sport Biomechanics. 2007;17(2):103-22. https://doi.org/10.5103/KJSB.2007.17.2.103