High-Load (lifting) versus Low-Load (motor control endurance) Exercises for Low Back Pain

Post on February 12, 2015 by André Broussard, D.C.

Individualized Low-Load Motor Control Exercises And Education Versus A High-Load Lifting Exercise And Education To Improve Activity, Pain Intensity, And Physical Performance In Patients With Low Back Pain: A Randomized Controlled Trial
Authors: Björn Aasa, RPT, MaSci
Journal of Orthopaedic & Sports Physical Therapy, 2015, Volume: 45 Issue: 2 Pages: 77-85 doi:10.2519/jospt.2015.5021

Study Design
Randomized controlled trial.

Background
Low back pain is a common disorder. Patients with low back pain frequently have aberrant and pain-provocative movement patterns that often are addressed with motor control exercises.

Objective
To compare the effects of low-load motor control (LMC) exercise and those of a high-load lifting (HLL) exercise.

Methods
Seventy participants with recurrent low back pain, who were diagnosed with nociceptive mechanical pain as their dominating pain pattern, were randomized to either LMC or HLL exercise treatments. Participants were offered 12 treatment sessions over an 8-week period. All participants were also provided with education regarding pain mechanisms.

Methods
Participants were assessed prior to and following treatment. The primary outcome measures were activity (the Patient-Specific Functional Scale) and average pain intensity over the last 7 days (visual analog scale). The secondary outcome measure was a physical performance test battery that included 1 strength, 3 endurance, and 7 movement control tests for the lumbopelvic region.

Results
Both interventions resulted in significant within-group improvements in pain intensity, strength, and endurance. The LMC group showed significantly greater improvement on the Patient-Specific Functional Scale (4.2 points) compared with the HLL group (2.5 points) (P<.001). There were no significant between-group differences in pain intensity (P = .505), strength, and 1 of the 3 endurance tests. However, the LMC group showed an increase (from 2.9 to 5.9) on the movement control test subscale, whereas the HLL group showed no change (from 3.9 to 3.1) (P<.001).

Conclusion
An LMC intervention may result in superior outcomes in activity, movement control, and muscle endurance compared to an HLL intervention, but not in pain intensity, strength, or endurance. Registered at ClinicalTrials.gov (NCT01061632).

Read More: http://www.jospt.org/doi/abs/10.2519/jospt.2015.5021

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