Determination of the motor unit behavior of lumbar erector spinae muscles through surface EMG decomposition technology in healthy female subjects
Mariana Felipe Silva PhD candidate
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorJosilainne Marcelino Dias Post-Doc fellow
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorLigia Maxwell Pereira PhD
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorBruno Fles Mazuquin PhD candidate
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorSteven Lindley PhD
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorJim Richards PhD
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorCorresponding Author
Jefferson Rosa Cardoso PhD
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Correspondence to: J. R. Cardoso, Av. Robert Kock 60, Londrina, PR, Brazil 86038-440; e-mail: [email protected]Search for more papers by this authorMariana Felipe Silva PhD candidate
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorJosilainne Marcelino Dias Post-Doc fellow
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorLigia Maxwell Pereira PhD
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Search for more papers by this authorBruno Fles Mazuquin PhD candidate
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorSteven Lindley PhD
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorJim Richards PhD
Allied Health Research Unit, University Central of Lancashire, Preston, Lancashire, United Kingdom
Search for more papers by this authorCorresponding Author
Jefferson Rosa Cardoso PhD
Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, PR, Brazil
Correspondence to: J. R. Cardoso, Av. Robert Kock 60, Londrina, PR, Brazil 86038-440; e-mail: [email protected]Search for more papers by this authorABSTRACT
Introduction: The aims of this study were to determine the motor unit behavior of the erector spinae muscles and to assess whether differences exist between the dominant/nondominant sides of the back muscles. Methods: Nine healthy women, aged 21.7 years (SD = 0.7), performed a back extension test. Surface electromyographic decomposition data were collected from both sides of the erector spinae and decomposed into individual motor unit action potential trains. The mean firing rate for each motor unit was calculated, and a regression analysis was performed against the corresponding recruitment thresholds. Results: The mean firing rate ranged from 15.9 to 23.9 pps and 15.8 to 20.6 pps on the dominant and nondominant sides, respectively. However, the early motor unit potentials of the nondominant lumbar erector spinae muscles were recruited at a lower firing rate. Conclusions: This technique may further our understanding of individuals with back pain and other underlying neuromuscular diseases. Muscle Nerve 55: 28–34, 2017
REFERENCES
- 1Neufuss J, Hesse B, Thorpe SKS, Vereecke EE, D'Aout K, Fischer MS, et al. Fibre type composition in the lumbar perivertebral muscles of primates: implications for the evolution of orthogrady in hominoid. J Anat 2014; 224: 113–131.
- 2Hesse B, Frober R, Fischer MS, Schilling N. Functional differentiation of the human lumbar perivertebral musculature revisited by means of muscle fiber type composition. Ann Anat 2013; 195: 570–580.
- 3De Luca CJ. Control properties of motor units. J Exp Biol 1985; 115: 125–136.
- 4De Luca CJ, Kline JC, Contessa P. Transposed firing activation of motor units. J Neurophysiol 2014; 112: 962–970.
- 5Henneman E, Somjen G, Carpenter DO. Functional significance of cell size in spinal motoneurons. J Neurophysiol 1965; 28: 560–580.
- 6De Luca CJ, Lefever RS, McCue MP, Xenakis AP. Control scheme governing concurrently active human motor units during voluntary contractions. J Physiol 1982; 329: 129–142.
- 7De Luca CJ, Contessa P. Biomechanical benefits of the onion-skin motor unit control scheme. J Biomech 2015; 48: 195–203.
- 8Nawab SH, Wotiz RP, De Luca CJ. Decomposition of indwelling EMG signals. J Appl Physiol 2008; 105: 700–710.
- 9Nawab SH, Chang SS, De Luca CJ. High-yield decomposition of surface EMG signals. Clin Neurophysiol 2010; 121: 1602–1615.
- 10Zaheer F, Roy SH, De Luca CJ. Preferred sensor sites for surface EMG signal decomposition. Physiol Meas 2012; 33: 195–206.
- 11Hu X, Rymer WZ, Suresh NL. Accuracy assessment of a surface electromyogram decomposition system in human first dorsal interosseus muscle. J Neural Eng 2014; 11: 026007.
- 12De Luca CJ, Kline JC. Influence of proprioceptive feedback on the firing rate and recruitment of motoneurons. J Neural Eng 2012; 9: 016007.
- 13Marsden JF, Farmer SF, Halliday DM, Rosenberg JR, Brown P. The unilateral and bilateral control of motor unit pairs in the first dorsal interosseous and paraspinal muscles in man. J Physiol 1999; 521(Pt 2): 553–564.
- 14Cuesta-Vargas Al, González-Sánchez M. Prediction of maximal surface electromyographically based voluntary contractions of erector spinae muscles from sonographic measurements during isometric contractions. J Ultrasound Med 2014; 33: 399–404.
- 15Cholewicki J, McGill SM. Mechanical stability of the in vivo lumbar spine: implications for injury and chronic low back pain. Clin Biomech 1996; 11: 1–15.
- 16Macintosh JE, Bogduk N. The morphology of the lumbar erector spinae. Spine 1987; 12: 658–668.
- 17De Luca CJ, Adam A, Wotiz R, Gilmore LD, Nawab SH. Decomposition of surface EMG signals. J Neurophysiol 2006; 96: 1646–1657.
- 18De Luca CJ, Contessa P. Hierarchical control of motor units in voluntary contractions. J Neurophysiol 2012; 107: 178–195.
- 19Nelson-Wong E, Howarth S, Winter DA, Callaghan JP. Application of autocorrelation and cross-correlation analyses in human movement and rehabilitation research. J Orthop Sports Phys Ther 2009; 39: 287–295.
- 20Beck TW, DeFreitas JM, Stock MS, Dillon MA. Effects of resistance training on force steadiness and common drive. Muscle Nerve 2011; 43: 245–250.
- 21Milner-Brown HS, Stein RB, Yemm R. The contractile properties of human motor units during voluntary isometric contractions. J Physiol 1973; 228: 285–306.
- 22Dankaerts W, O'Sullivan PB, Burnett AF, Straker LM, Danneels LA. Reliability of EMG measurements for trunk muscles during maximal and sub-maximal voluntary isometric contractions in healthy controls and CLBP patients. J Electromyogr Kinesiol 2004; 14: 333–342.
- 23Vera-Garcia FJ, Moreside JM, McGill SM. MVC techniques to normalize trunk muscle EMG in healthy women. J Electromyogr Kinesiol 2010; 20: 10–16.
- 24Mannion AF, Dolan P. The effects of muscle length and force output on the EMG power spectrum of the erector spinal. J Electromyogr Kinesiol 1996; 6: 159–168.
- 25Westgaard RH, De Luca CJ. Motor control of low-threshold motor units in the human trapezius muscle. J Neurophysiol 2001; 85: 1777–1781.
- 26Stark H, Frober R, Schilling N. Intramuscular architecture of the autochthonous back muscles in humans. J Anat 2013; 222: 214–222.
- 27Cole TJ. Weight-stature indices to measure underweight, overweight and obesity. In: JH Himes, editor. Anthropometric assessment of nutritional status. New York, NY: Wiley Periodicals; 1991. p 83–111.
- 28Adam A, De Luca CJ. Firing rates of motor units in human vastus lateralis muscle during fatiguing isometric contractions. J Appl Physiol 2005; 99: 268–280.
- 29De Luca CJ, Hostage EC. Relationship between firing rate and recruitment threshold of motoneurons in voluntary isometric contractions. J Neurophysiol 2010; 104: 1034–1046.
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