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A longitudinal assessment of myoelectric activity, postural sway, and low-back pain during pregnancy

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The present study aimed at investigating the control of upright quiet standing in pregnant women throughout pregnancy, and whether low-back pain exerts influence on this motor task. Methods: Myoelectric signals from postural muscles and stabilometric data were collected from 15 non-pregnant and 15 pregnant women during upright quiet standing. Electromyogram envelopes and center of pressure metrics were evaluated in the control group, as well as in pregnant women in their first and third trimester of pregnancy. A correlation analysis was performed between the measured variables and a low-back pain disability index. Results: Pregnant women exhibited a decreased maximum voluntary isometric activity for all postural muscles evaluated. Additionally, the activity of lumbar muscles during the postural task was significantly higher in the pregnant women in comparison to the non-pregnant controls. The soleus muscle maintained its activity at the same level as the gestation progressed. Higher postural oscillations were observed in the anteroposterior direction while mediolateral sway was reduced in the third trimester of pregnancy. No correlation was detected between the lowback pain disability index and neuromechanical variables. Conclusion: This study provides additional data regarding the functioning and adaptations of the postural control system during pregnancy. Also, we provide further evidence that postural control during quiet standing cannot be used to predict the occurrence of low-back pain. We hypothesize that the modifications in the neural drive to the muscles, as well as in postural sway may be related to changes in the biomechanics and hormonal levels experienced by the pregnant women.
Rocznik
Strony
77--83
Opis fizyczny
Bibliogr. 25 poz., tab., wykr.
Twórcy
  • Faculty of Medicine, Federal University of Goiás, Goiânia, GO, Brazil
  • Faculty of Physical Education, Federal University of Goiás, Goiânia, GO, Brazil
  • Cellular and Structural Biology Graduate Program, Institute of Biology, University of Campinas, Campinas, SP, Brazil
autor
  • Department of Biomedical Engineering, School of Electrical and Computer Engineering, University of Campinas, Campinas, SP, Brazil
autor
  • Faculty of Medicine, Federal University of Goiás, Goiânia, GO, Brazil
  • Faculty of Physical Education, Federal University of Goiás, Goiânia, GO, Brazil
autor
  • Faculty of Medicine, Federal University of Goiás, Goiânia, GO, Brazil
  • Faculty of Physical Education, Federal University of Goiás, Goiânia, GO, Brazil
  • Faculty of Medicine, Federal University of Goiás, Goiânia, GO, Brazil
  • Department of Gynecology and Obstetrics, Faculty of Medicine, Federal University of Goiás, Goiânia, GO, Brazil
Bibliografia
  • [1] BORG-STEIN J., DUGAN S.A., Musculoskeletal disorders of pregnancy, delivery and postpartum, Phys. Med. Rehabil. Clin. N. Am., 2007, 18, 459–476, DOI: 10.1016/j.pmr.2007.05.005.
  • [2] BORG-STEIN J., DUGAN S.A., GRUBER J., Musculoskeletalaspects of pregnancy, Am. J. Phys. Med. Rehabil., 2005, 84, 180–192, DOI: 10.1097/01.PHM.0000156970.96219.48.
  • [3] BRETT M., BAXENDALE S., Motherhood and memory: a review, Psychoneuroendocrinology, 2001, 26, 339–362.
  • [4] BUTLER E.E., COLÓN I., DRUZIN M.L., ROSE J., Postural equilibrium during pregnancy: decreased stability with an increased reliance on visual cues, Am. J. Obstet. Gynecol., 2006, 195, 1104–1108, DOI: 10.1016/j.ajog.2006.06.015.
  • [5] CARPENTER M.G., FRANK J.S., WINTER D.A., PEYSAR G.W., Sampling duration effects on centre of pressure summary measures, Gait Posture, 2001, 13, 35–40.
  • [6] CASADIO M., MORASSO P.G., SANGUINETI V., Direct measurement of ankle stiffness during quiet standing: implications for control modelling and clinical application, Gait Posture, 2005, 21, 410–424, DOI: S0966-6362(04)00104-3 [pii]10.1016/j.gaitpost.2004.05.005.
  • [7] DE LUCA C.J., Electromyography, [in:] Webster J.G. (ed.), Encyclopedia of Medical Devices and Instrumentation, John Wiley & Sons, New York 2006, 98–109.
  • [8] DUMAS G.A., REID J.G., WOLFE L.A., GRIFFIN M.P., MCGRATH M.J., Exercise, posture, and back pain during pregnancy, Clin. Biomech., 1995, 10, 104–109. DOI: 10.1016/0268-0033(95)92047-P.
  • [9] DUMAS G.A., LEGER A., PLAMONDON A., CHARPENTIER K.M., PINTI A., MCGRATH M., Fatigability of back extensor muscles and low back pain during pregnancy, Clin. Biomech., 2010, 25, 1–5, DOI: 10.1016/j.clinbiomech.2009.09.011.
  • [10] ELIAS L.A., WATANABE R.N., KOHN A.F., Spinal mechanisms may provide a combination of intermittent and continuous control of human posture: predictions from a biologically based neuromusculoskeletal model, PLoS Comput. Biol., 2014, 10:e1003944, DOI: 10.1371/journal.pcbi.1003944.
  • [11] FRANKLIN M.E., CONNER-KERR T., An analysis of posture and back pain in the first and third trimesters of pregnancy, J. Orthop. Sports Phys. Ther., 1998, 28, 133–138, DOI:10.2519/jospt.1998.28.3.133.
  • [12] GAGE W.H., WINTER D.A., FRANK J.S., ADKIN A.L., Kinematic and kinetic validity of the inverted pendulum model 10.1016/S0966-6362(03)00037-7.
  • [13] GUTKE A., ÖSTGAARD H.C., ÖBERG B., Association between muscle function and low back pain in relation to pregnancy, J. Rehabil. Med., 2008, 40, 304–311, DOI:10.2340/16501977-0170.
  • [14] HECKMAN J.D., SASSARD R., Musculoskeletal considerations in pregnancy, J. Bone Jt. Surg., 1994, 76, 1720–1730, DOI:10.1017/CBO9780511842153.030.
  • [15] HERMENS H.J., FRERIKS B., DISSELHORST-KLUG C., RAU G., Development of recommendations for SEMG sensors and sensor placement procedures, J. Electromyogr. Kinesiol., 2000, 10, 361–374.
  • [16] JANG J., HSIAO K.T., HSIAO-WECKSLER E.T., Balance (perceived and actual) and preferred stance width during pregnancy, Clin. Biomech., 2008, 23, 468–476, DOI:10.1016/j.clinbiomech.2007.11.011.
  • [17] LATASH M.L., FERREIRA S.S., WIECZOREK S.A., DUARTE M., Movement sway: changes in postural sway during voluntary shifts of the center of pressure, Exp. Brain. Res., 2003, 150, 314–324. DOI: 10.1007/s00221-003-1419-3.
  • [18] MCCRORY J.L., CHAMBERS A.J., DAFTARY A., REDFERN M.S., Dynamic postural stability during advancing pregnancy, J. Biomech., 2010, 43, 2434–2439, DOI:10.1016/j.jbiomech.2009.09.058.
  • [19] OLIVEIRA L.F., VIEIRA T.M.M., MACEDO A.R., SIMPSON D.M., NADAL J., Postural sway changes during pregnancy: a descriptive study using stabilometry, Eur. J. Obstet. Gynecol. Reprod. Biol., 2009, 147, 25–28, DOI: 10.1016/j.ejogrb.2009.06.027.
  • [20] PRIETO T.E., MYKLEBUST J.B., HOFFMANN R.G., LOVETT E.G., MYKLEBUST B.M., Measures of postural steadiness: differences between healthy young and elderly adults, IEEE Trans. Biomed. Eng., 1996, 43, 956–966.
  • [21] RITCHIE J.R., Orthopedic considerations during pregnancy, Clin. Obstet. Gynecol., 2003, 46, 456–466, DOI:10.1097/00003081-200306000-00024.
  • [22] SIHVONEN T., HUTTUNEN M., MAKKONEN M., AIRAKSINEN O., Functional changes in back muscle activity correlate with pain intensity and prediction of low back pain during pregnancy, Arch. Phys. Med. Rehabil., 1998, 79, 1210–1212.
  • [23] SMITH M.W., MARCUS P.S., WURTZ L.D., Orthopedic issues in pregnancy, Obstet. Gynecol. Surv., 2008, 63, 103–111, DOI: 10.1097/OGX.0b013e318160161c.
  • [24] VIGATTO R., ALEXANDRE N.M.C., FILHO H.R.C., Development of a brazilian Portuguese version of the Oswestry Disability Index, Spine, 2007, 32, 481–486, DOI: 10.1097/01.brs.0000255075.11496.47.
  • [25] WINTER D.A., PATLA A.E., ISHAC M., GAGE W.H., Motor mechanisms of balance during quiet standing, J. Electromyogr. Kinesiol., 2003, 13, 49–56. DOI: 10.1016/S1050-6411(02)00085-8.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b0cc7f75-aa2d-4716-8aaf-d037c8b9d580
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