29473
document
Dynamic surface electromyographic responses in chronic low back pain treated by traditional bone setting and conventional physical therapy . OBJECTIVE This study compared the dynamic surface electromyographic ( EMG ) activities of back muscles and pain before and after traditional bone setting and physical therapy . METHODS This study was a prospective clinical trial that compared surface EMG dynamic activities after traditional bone setting and physical therapy . Sixty-one patients ( mean age , 41 years ) with nonspecific low back pain were randomized into two subgroups by treatment . The patients underwent a dynamic EMG evaluation for which they were asked to stand and then bend forward as far as possible , stay fully flexed , and return to standing . A flexion-relaxation ratio was calculated by comparing maximal EMG activity while flexing with the average EMG activity in full flexion . Concentric ( maximal EMG activity during extension ) and eccentric ( maximal EMG activity during flexion ) ratios were also used in the analyses . RESULTS Disability , depression , and visual analog scale scores decreased significantly after both treatments . The concentric ratio increased statistically in both groups after the treatments . The study failed to show a significant association between experienced back pain and EMG parameters . CONCLUSIONS Both treatments seem to have a positive influence on back muscle function by improving muscle symmetry ; however , the treatments had no effect on the flexion-relaxation phenomenon after 1 month . Active back exercise at home together with rehabilitation treatments might be effective and improve function for patients with chronic low back pain .
29474
Intervention_Physical
traditional bone setting and conventional physical therapy
29475
Intervention_Physical
traditional bone setting and physical therapy
29476
Intervention_Physical
traditional bone setting and physical therapy
29477
Intervention_Physical
dynamic EMG evaluation
29478
Intervention_Physical
Active back exercise at home
29479
Intervention_Control
treatments
29480
Outcome_Physical
surface electromyographic responses
29481
Outcome_Physical
dynamic surface electromyographic ( EMG ) activities
29482
Outcome_Other
surface EMG dynamic activities
29483
Outcome_Other
dynamic EMG evaluation
29484
Outcome_Physical
flexion-relaxation ratio
29485
Outcome_Other
maximal EMG activity
29486
Outcome_Physical
Concentric ( maximal EMG activity during extension ) and eccentric ( maximal EMG activity during flexion ) ratios
29487
Outcome_Physical
Disability
29488
Outcome_Physical
depression
29489
Outcome_Physical
visual analog scale scores
29490
Outcome_Physical
concentric ratio
29491
Outcome_Physical
EMG parameters
29492
Outcome_Physical
muscle symmetry ;
29493
Outcome_Physical
flexion-relaxation phenomenon
29494
Participant_Condition
chronic low back pain
29495
Participant_Condition
Sixty-one patients ( mean age , 41 years ) with nonspecific low back pain were randomized