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Year : 2017  |  Volume : 11  |  Issue : 1  |  Page : 12-16

Extensor trunk muscle activity during stabilization exercises: An update

Center for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India

Correspondence Address:
Zubia Veqar
Center for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/PJIAP.PJIAP_2_17

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Stabilization exercises are commonly employed exercises and are popular due to reduction in spinal loads and for strengthening of trunk extensors. Different stabilization exercises are performed in various position and using different strategies. Local muscles of trunk as well as global muscles both are activated during these exercises. Activation of local muscle such as multifidus as compared to global muscles is now being emphasized for treating low back pain (LBP). Varying lumbar lordosis during stabilization exercises has shown to increase the activity of lumbar multifidus as compared to longissimus thoracis muscle which is a global muscle. In addition, a lordotic posture causes lesser reduction in moment arm of erector spinae and reduced muscle activation. The lumbar multifidus is an important stabilizer of the neutral zone, and dysfunction in these muscles is strongly associated with LBP. Lumbar multifidus has also shown to be selectively and bilaterally atrophied in LBP. Electromyography of trunk muscles during stabilization exercises will provide a means by which the muscle activation levels can be analyzed and can assist therapist in selecting appropriate exercise for the muscle which is commonly atrophied in chronic LBP. Exercises promoting targeted activation of atrophied muscles will result in effective rehabilitation for LBP. The extensor muscle activity during stabilization exercises will help providing a potential for progression and planning rehabilitation protocol for the specific muscle.

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