Activation of lumbar paraspinal and abdominal muscles during therapeutic exercises in chronic low back pain patients
Activation of lumbar paraspinal and abdominal muscles during therapeutic exercises in chronic low back pain patients
复制标题
DOI:
10.1016/j.apmr.2003.06.013
复制
发表时间:
2004-05-01
影响因子:
4.3
通讯作者:
Airaksinen, A
中科院分区:
文献类型:
--
作者:
Arokoski, JP;Valta, T;Airaksinen, A
Objectives: To assess the activities of paraspinal and abdominal muscles during therapeutic exercises for the treatment of patients with nonspecific chronic low back pain (CLBP), and to study the effects of active physical rehabilitation on these activities.Design: A cross-sectional study comparing muscle activities during 18 stabilization exercises, and a prospective follow-up of patients with CLBP during rehabilitation.Setting: Rehabilitation clinic in university hospital in Finland.Participants: Nine volunteers (5 men, 4 women) aged 27 to 58 years.Intervention: Three months of active outpatient rehabilitation (4 to 6 times in a rehabilitation clinic, supplemented with self-motivated exercise at home) supervised by a physiotherapist.Main Outcome Measures: Surface electromyography was recorded bilaterally from L5 level paraspinal, rectus abdominis, and obliquus externus abdominis muscles. The recorded signal was averaged and normalized to the maximal electromyo-graphic amplitude obtained during the maximal voluntary contraction. The measurements were taken before and after the exercise treatment period.Results: CLBP patients showed variable trunk muscle activity patterns during the different therapeutic exercises, similar to those that we reported earlier in healthy subjects. The maximal trunk isometric extension (pre, 147.3+/-75.9Nm; post, 170.1+/-72.3Nm) and flexion (pre, 72.0+/-37.9Nm; post, 93.5+/-42.5Nm) torques did not show a significant changes during the exercise period. However, trunk rotation-flexion torque (pre, 52.9+/-26.5Nm; post, 82.4+/-65.8Nm) increased significantly (35.8%) after the exercise period (P