Purpose: To demonstrate that a tailored, supervised aerobic exercise after a general back-school rehabilitation program will improve outcomes for older patients with low back pain more than the general back-school program alone. Method: Twenty-two older patients with chronic nonspecific low back pain were recruited for this study, and they were randomly assigned to a control or an interventional group. Both groups received a standard back-school program, while subjects in the intervention group received an additional 15 minutes of the aerobic training program. The numerical pain rating scale (NPRS) and the Roland-Morris Questionnaire (RMQ) were used to assess pain intensity and disability before and after the 5-week treatment in both the participants' groups. Results: Reduction percentage was found significantly increased in the interventional group when compared with the control group for both the NPRS and the RMQ index (P < .05). Conclusion: An adapted aerobic exercise, together with a standard back-school program, was effective in reducing pain symptoms and disability in low back pain subjects rather than the back-school program alone. This should be used as an advice to practitioners while managing low back pain.

The purpose of this study was to examine the muscular activities and kinetics of the trunk during unstable sitting in healthy and LBP subjects. Thirty-one healthy subjects and twenty-three LBP subjects were recruited. They were sat on a custom-made chair mounted on a force plate. Each subject was asked to regain balance after the chair was tilted backward at 20°, and then released. The motions of the trunk and trunk muscle activity were examined. The internal muscle moment and power at the hip and lumbar spine joints were calculated using the force plate and motion data. No significant differences were found in muscle moment and power between healthy and LBP subjects (p>0.05). The duration of contraction of various trunk muscles and co-contraction were significantly longer in the LBP subjects (p<0.05) when compared to healthy subjects, and the reaction times of the muscles were also significantly reduced in LBP subjects (p<0.05). LBP subjects altered their muscle strategies to maintain balance during unstable sitting, but these active mechanisms appear to be effective as trunk balance was not compromised and the internal moment pattern remained similar. The changes in muscle strategies may be the causes of LBP or the result of LBP with an attempt to protect the spine.