title: Efficacy of core muscle strengthening exercise in chronic low back pain patients.
abstract: OBJECTIVE
  Low back pain is a common health problem in human being and about 5 to 15% will develop chronic low back pain (CLBP). The clinical findings of CLBP suggest that lumbar mobility is decreased and recruitment order of core muscles is altered. In literature, there is no data about the effect of core muscles strengthening in the chronicity (short duration, long duration) of CLBP. This study evaluated the effect of core muscle strengthening intervention on chronicity of chronic low back pain.
  
  
  METHODS
  Thirty patients were recruited from the outpatient department of the National Institute for the Orthopaedically Handicapped. These 30 patients divided into two groups: A and B on the basis of duration of low back pain. Group-A patients complain about pain duration for more than twelve months and Group B complains about pain duration from three to twelve months. Both the groups were received same intervention for six weeks. Assessment was done pre intervention and post intervention after six weeks for both the groups. %For both the groups the assessment was done after six weeks for pre and post intervention.
  
  
  RESULTS
  The result described both the groups showed improvement in all the outcome measures including pain as well as in function using Numerical pain rating scale, Oswestry Disability Index, Sorensen test, Gluteus Maximus Strength, Activation of transversus abdominis and Modified-Modified Schober's Test. The improvement was statistically non-significant with inter groups and significant within group.
  
  
  CONCLUSIONS
  This study concludes that core muscle strengthening exercise along with lumbar flexibility and gluteus maximus strengthening is an effective rehabilitation technique for all chronic low back pain patients irrespective of duration (less than one year and more than one year) of their pain.
authors.affiliation: Department of Physiotherapy, NIOH, Kolkata, India.
authors.forename: Tarun
authors.initials: T
authors.lastname: Kumar
authors.affiliation: Department of Physiotherapy, Paramedical Vigyan Mahavidyalaya, UPRIMS{&}R, Saifai, Etawah, Uttar Pradesh, India.
authors.forename: Suraj
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Department of Physiotherapy, NIOH, Kolkata, India.
authors.forename: Md
authors.initials: M
authors.lastname: Nezamuddin
authors.affiliation: Department of PMR, CSM Medical University, Lucknow, India.
authors.forename: V P
authors.initials: VP
authors.lastname: Sharma
mesh_terms: D000328:Adult; D000368:Aged; D002081:Buttocks / Q000503:physiopathology; D059350:Chronic Pain / Q000503:physiopathology / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000503:physiopathology / Q000534:rehabilitation*; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000503:physiopathology*; D055070:Resistance Training / Q000379:methods*
keywords: Chronic low back pain; Gluteus maximus strengthening; core muscle strengthening; lumbar flexibility; pressure biofeedback unit