Rancang Bangun Sistem Pengendali Tegangan Stimulasi Elektrostimulator Otomatis Berbasis Resistansi Tubuh
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Pada penelitian ini, dibuat desain alat elektrostimulator yang mengeluarkan bentuk gelombang spike-eksponensial monofase. Sistem kontrol elektrostimulator dilakukan dengan menggunakan dua frekuensi dan enam belas tingkat tegangan keluaran dengan batas bawah sebesar 45 Volt dan batas atas sebesar 400 Volt. Penentuan tegangan stimulasi secara otomatis dilakukan dengan pengukuran nilai resistansi tubuh. Nilai resistansi tubuh yang dijadikan umpan balik sistem bergantung dari nilai frekuensi stimulasi yang diberikan. Penentuan nilai resistansi sebagai umpan balik sistem pada tiap frekuensi ditentukan dengan membagi nilai rerata nilai ambang sakit dengan rerata nilai resistansi, sehingga diperoleh arus stimulasi pada tiap frekuensi yaitu 0.01mA pada frekunsi 4 Hz dan 0.09 mA pada frekuensi 100 Hz. Berdasarkan VEff pada tiap tingkat pada masing-masing frekuensi dan arus stimulasi pada tiap frekuensi tersebut maka dapat ditentukan nilai resistansi pada tiap tingkat pada tiap frekuensi yang akan dijadikan sebagai umpan balik sistem. Elektrostimulator ini memiliki ketepatan penentuan tegangan stimulasi dengan error pungukuran resistansi tubuh sebesar 1%. Studi yang telah dilakukan menunjukan bahwa alat elektrostimulator yang diwujudkan memiliki akurasi yang baik dan memiliki keuntungan di nilai tegangan puncak yang tinggi dan arus efektif yang rendah, sehingga dapat dipertimbangkan karena memberikan kenyamanan dan keamanan pada peralatan terapi medis.
Kata kunci” Elektrostimulator, Elektrostimulator Otomatis, Otomatiasasi Tegangan Stimulasi
DAFTAR PUSTAKA
Balakatounis, K. (2011) ‘Electrical stimulation for wound healing', Advanced Wound Repair Therapies, 3(2), pp. 571–586. doi: 10.1533/9780857093301.5.571.
Barr, R. P. and R. C. (2007) Bioelectricity A Quantitative Approach. 3rd edn. Springer Science & Business Media.
CHERYL L. LYNCH and MILOS R. POPOVIC (2008) ‘Functional Electrical Stimulation', IEEE Control Systems, 28(2), pp. 40–50. doi: 10.1109/MCS.2007.914689.
Clair-Auger, J. M., Collins, D. F. and Dewald, J. P. A. (2012) ‘The effects of wide pulse neuromuscular electrical stimulation on elbow flexion torque in individuals with chronic hemiparetic stroke', Clinical Neurophysiology. International Federation of Clinical Neurophysiology, 123(11), pp. 2247–2255. doi: 10.1016/j.clinph.2012.04.024.
Doucet, B. M., Lam, A. and Griffin, L. (2012) ‘Neuromuscular Electrical Stimulation for Skeletal Muscle Function', Yale Journal of Biology and Medicine, 85(2), pp. 201–215. doi: 10.1007/BF02371250.
Ganong, W. F. (2002) ‘Buku ajar fisiologi kedokteran', Edisi, 20, pp. 515–518.
Gerrits, H. L. et al. (2001) ‘Peripheral vascular changes after electrically stimulated cycle training in people with spinal cord injury', Archives of Physical Medicine and Rehabilitation, 82(6), pp. 832–839. doi: 10.1053/apmr.2001.23305.
Grill, W. M. and Mortimer, J. T. (1996) ‘The effect of stimulus pulse duration on selectivity of neural stimulation', IEEE Transactions on Biomedical Engineering, 43(2), pp. 161–166. doi: 10.1109/10.481985.
Guyton Arthur, C. and Hall, J. E. (2007) ‘Buku Ajar Fisiologi Kedokteran, edisi 11', Jakarta: EGC, pp. 1022–1023.
Itoh, S. et al. (2008) ‘Treatment of distal radius fractures with a wrist-bridging external fixation: the value of alternating electric current stimulation', Journal of Hand Surgery (European Volume). Sage Publications Sage UK: London, England, 33(5), pp. 605–608.
Jailani, R. and Tokhi, M. O. (2012) ‘The effect of functional electrical stimulation (FES) on paraplegic muscle fatigue', Proceedings - 2012 IEEE 8th International Colloquium on Signal Processing and Its Applications, CSPA 2012, pp. 500–504. doi: 10.1109/CSPA.2012.6194780.
Jie, T. et al. (2016) ‘The effective stimulating pulse for restoration of blink function in unilateral facial nerve paralysis rabbits, verified by a simple FES system', European Archives of Oto-Rhino-Laryngology. Springer Berlin Heidelberg, 273(10), pp. 2959–2964. doi: 10.1007/s00405-015-3884-2.
Joseph J. Carr and John M. Brown (1998) Introduction to Equipment Technology. third edit.
Kawitana, W. R. and Prijo, T. A. (2012) ‘Kajian Biofisika Terapi Elektro Akupunktur', in Samian (ed.) Seminar Nasional Fisika Terapan III. Surabaya: Universitas Airlangga, pp. E1–E4. doi: ISBN: 978-979-17494-2-8.
Kesar, T., Chou, L. W. and Binder-Macleod, S. A. (2008) ‘Effects of stimulation frequency versus pulse duration modulation on muscle fatigue', Journal of Electromyography and Kinesiology, 18(4), pp. 662–671. doi: 10.1016/j.jelekin.2007.01.001.
Koyuncu, E. (2010) ‘The effectiveness of functional electrical stimulation for the treatment of shoulder subluxation and shoulder pain in hemiplegic patients : A randomized controlled trial', 32(7), pp. 560–566. doi: 10.3109/09638280903183811.
Mangold, S. et al. (2005) ‘Transcutaneous functional electrical stimulation for grasping in subjects with cervical spinal cord injury', Spinal Cord, 43(1), pp. 1–13. doi: 10.1038/sj.sc.3101644.
Mann, F. (1966) Atlas of acupuncture: points and meridians in relation to surface anatomy. Butterworth-Heinemann.
Martínez-Rodríguez, A. et al. (2013) ‘The effect of alternating and biphasic currents on humans' wound healing: A literature review', International Journal of Dermatology, 52(9), pp. 1053–1062. doi: 10.1111/j.1365-4632.2012.05836.x.
Masdar, A., Ibrahim, B. S. K. K. and Jamil, M. M. A. (2012) ‘Development of wireless-based low-cost current controlled stimulator for patients with spinal cord injuries', 2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences, IECBES 2012, (December), pp. 493–498. doi: 10.1109/IECBES.2012.6498175.
Merrill, D. R., Bikson, M. and Jefferys, J. G. R. (2005) ‘Electrical stimulation of excitable tissue: Design of efficacious and safe protocols', Journal of Neuroscience Methods, 141(2), pp. 171–198. doi: 10.1016/j.jneumeth.2004.10.020.
MILAAN., H. C. B. and J. B. van (1943) ‘Measurements of the specific Resistance of the human Body to direct Current', CXIV.
Peckham, P. H. and Knutson, J. S. (2005) ‘Functional Electrical Stimulation for Neuromuscular Applications', Annual Review of Biomedical Engineering, 7(1), pp. 327–360. doi: 10.1146/annurev.bioeng.6.040803.140103.
Popović, D. B. (2014) ‘Advances in functional electrical stimulation (FES)', Journal of Electromyography and Kinesiology, 24(6), pp. 795–802. doi: 10.1016/j.jelekin.2014.09.008.
Price, C. I. M. and Pandyan, A. D. (2001) ‘Electrical stimulation for preventing and treating post-stroke shoulder pain: a systematic Cochrane review', Clinical rehabilitation. SAGE Publications Sage CA: Thousand Oaks, CA, 15(1), pp. 5–19.
S., C. et al. (2008) ‘Arm-cranking exercise assisted by functional electrical stimulation in C6 tetraplegia: A pilot study', Technology and Health Care, 16(6), pp. 415–427. Available at: http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=reference&D=emed8&NEWS=N&AN=2009366224.
Sabut, S. K. et al. (2011) ‘Functional electrical stimulation of dorsiflexor muscle: Effects on dorsiflexor strength, plantarflexor spasticity, and motor recovery in stroke patients', NeuroRehabilitation, 29(4), pp. 393–400. doi: 10.3233/NRE-2011-0717.
Saputra, K. and Idayanti, A. (2002) ‘Akupunktur klinik', Airlangga University Press. Surabaya.
Sluka, K. a and Walsh, D. (2003) ‘Transcutaneous electrical nerve stimulation: basic science mechanisms and clinical effectiveness.', The journal of pain : official journal of the American Pain Society, 4(3), pp. 109–121. doi: 10.1054/jpai.2003.434.
Sutrisno (1986) ELEKTRONIKA: Teori dasar dan penerapannya 1. Bandung: ITB.
Thijssen, D. H. et al. (2006) ‘Rapid vascular adaptations to training and detraining in persons with spinal cord injury', Archives of Physical Medicine and Rehabilitation, 87(4), pp. 474–481. doi: 10.1016/j.apmr.2005.11.005.
Thijssen, D. H. J. et al. (2010) ‘Effect of functional electrostimulation on impaired skin vasodilator responses to local heating in spinal cord injury', Assistive Technology Research Series, 26, pp. 311–313. doi: 10.3233/978-1-60750-080-3-311.
Thrasher, T. A. et al. (2009) ‘Neurorehabilitation and Neural Repair'. doi: 10.1177/1545968308317436.
Vromans, M. (2017) ‘Force and Fatigue Development Following Electrical Stimulation : The Effect of Frequency and Fiber Type'.
Young, S., Hampton, S. and Tadej, M. (2011) ‘Study to evaluate the effect of low-intensity pulsed electrical currents on levels of oedema in chronic non-healing wounds', Journal of wound care. MA Healthcare London, 20(8), pp. 368–373.
Zhaomin, Y., Jingsheng, Z. and Yueguang, L. (2002) Chinese acupuncture and moxibustion. University of Traditional Chinese Medicine.
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