An exercise therapy program can increase oxygenation and blood volume of the erector spinae muscle during exercise in chronic low back pain patients

Publication year: 2012
Source:Archives of Physical Medicine and Rehabilitation

Nicolas Olivier, André Thevenon, Serge Berthoin, Fabrice Prieur

Objective to determine whether erector spinae muscle oxygenation (OXY) and blood volume (BV) during a progressive isoinertial lifting evaluation (PILE) are modified by an exercise therapy program. Design pre (E1) and post (E2) exercise therapy experimental design. Setting Hospital. Participants 24 subjects with chronic low back pain (LBP group) and 24 healthy subjects (control group) were evaluated. Interventions exercise program. Main Outcome Measures The control group was evaluated once and the LBP group was evaluated before (E1) the exercise therapy program and 28 days thereafter (E2). The maximal load lifted, total work and total power were determined using the PILE test. Continuous wave near-infrared spectroscopy (cwNIRS; NIMS, Philadelphia, PA)was used to measureOXY and BV during the PILE test. Results The maximal load lifted, total power and total work were significantly lower in the LBP group (-42 ±5, -46 ± 6 and -67 ±6% at E1; p < 0.05) than in the control group. In the LBP subjects, these parameters improved significantly after the exercise therapy program (+20 ±3, +56 ±4 and +61 ±5%; p < 0.05). At each submaximal power (i.e. 25, 50, 75 and 100% of maximal load lifted at E1), OXY and BV were significantly higher at E2 than at E1. One-half recovery time for muscle oxygenation was significantly higher in the LBP group (at E1 and E2) than in the control subjects. Conclusion The findings in this study suggest that LBP subjects present an impairment in their capacity to deliver O2 at the level of the erector spinae muscle which can be partly restored by an exercise therapy program.

Source: http://www.sciencedirect.com/science?_ob=GatewayURL&_origin=IRSSSEARCH&_method=citationSearch&_piikey=S000399931201088X&_version=1&md5=b6c9cd532a1b60d81cc61d9667aef06a

Full Report Read Full Article Read Full Report Get the facts