The Effects of Low-Load Motor Control Exercises and a High-Load Lifting Exercise on Lumbar Multifidus Thickness-A Randomized Controlled Trial.
Spine (Phila Pa 1976). 2016 Nov 18.
Berglund L1, Aasa B, Michaelson P, Aasa U.
The aim of this study was to compare the effects of low-load motor control exercises and a high-load lifting exercise, on lumbar multifidus (LM) thickness on either side of the spine and whether the effects are affected by mechanical LBP.
There is evidence that patients with low back pain may have a decreased size of the (LM) muscles with an asymmetry between sides in the lower back. It has also been shown that low-load motor control training can affect this asymmetry. It is, however, not known whether a high-load exercise has the same effect.
There was a difference in thickness of the LM muscles between sides. It seems that exercises focusing on spinal alignment may increase the thickness of the LM muscles on the small side, irrespective of exercise load. The increase in LM thickness does not appear to be mediated by either current pain intensity or the magnitude of change in pain intensity.