Document Type
Conference Item
Publication Date
1-1-2008
Abstract
The electromyography (EMG) activity of the biceps femoris, rectus femoris, gastrocnemius, and fourth lumbar (L4) and fifth lumbar (L5) muscles of 5 male subjects was measured during a series of maneuvers which include standing, bowing, prostration, and sitting. Raw EMG was processed by root-mean-square (RMS) technique using a time constant of 50 ms. The results show that the gastrocnemius is the most active. The series of standing to prostration maneuvers showed 13.21±10.67 RMS, μV (mean±standard deviation), standing to bowing, 11.97± 4.89, sitting to prostration, 8.36±12.55. Preliminary EMG profiles in this study demonstrated that subjects used relatively higher levels of gastrocnemius muscle compare to the biceps femoris, rectus femoris, and fourth lumbar (L4) and fifth lumbar (L5) muscles to perform the set of moderate exercises. © 2008 Springer-Verlag.
Keywords
Bowing, Electromyography, prostration, sitting, standing, Biceps femoris, Biomechanical response, Gastrocnemius, Gastrocnemius muscle, Rectus femoris, Root mean squares, Standard deviation, Time constants, Biomechanics, Biomedical engineering, Muscle
Divisions
fac_eng
Volume
21 IFM
Event Title
4th Kuala Lumpur International Conference on Biomedical Engineering (BioMed 2008)
Event Location
Kuala Lumpur, Malaysia
Event Dates
25-28 June 2008
Event Type
conference
Additional Information
Conference code: 82241 Export Date: 29 January 2014 Source: Scopus doi: 10.1007/978-3-540-69139-6-114 Language of Original Document: English Correspondence Address: Salahuddin, M. H. R.; Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia; email: emyrizal@gmail.com References: Reza, M.F., Urakami, Y., Mano, Y., Evaluation of a New Physical Exercise Taken from Salat (prayer) as a Short-Duration and Frequent Physical Activity in the Rehabilitation of Geriatric and Disabled Patients (2002) Annals of Saudi Medicine, 22, pp. 3-4; Zajac, F.E., Understanding muscle coordination of the human leg with dynamical simulations (2002) J Biomech, 35 (8), pp. 1011-1018. , Aug; Basmajian, J.V., DeLuca, C.J., (1985) Muscles Alive. Their Functions Revealed by Electromyography, , 5th edn. Baltimore: Williams and Wilkins; Basmajian, J.V., Blumenstein, R., (1980) Electrode Placement in EMG Biofeedback, , Baltimore: Williams and Wilkins; Hermens, H.J., Freriks, B., Merletti, R., Hägg, G., Stegeman, D., Blok, J., (1999) SENIAM 8: European Recommendations for Surface Electromyography, , ISBN: 90-75452-15-2, Roessingh Research and Development bv; Kellis, E., Quantification of quadriceps and hamstring antagonist activity (1998) Sports Med, 25 (1), pp. 37-62