Rowers with a recent history of low back pain engage different regions of the lumbar erector spinae during rowing

Abstract

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People With Low Back Pain Display a Different Distribution of Erector Spinae Activity During a Singular Mono-Planar Lifting Task

“…In line with previous studies, the lower grids were attached 5 cm lateral to the lumbar spinous processes, beginning at the level of L5 (Falla et al, 2014;Martinez-Valdes et al, 2019;Sanderson et al, 2019). The upper grids remained 5 cm lateral to the spinous processes; however, the inferior border was affixed to the skin 5 mm cranial to the superior border of the lower grid (Figure 2).…”

“…As described previously, the location of the centroid in the x-and y-axes was calculated from these topographical maps (Tucker et al, 2009;Falla et al, 2017;Sanderson et al, 2019). Additionally, values for the complexity (entropy) of the signals were calculated for each epoch, this measure indicates how homogenous the contraction was across the measured area, with a reduction in this value indicating a more heterogeneous contraction (Martinez-Valdes et al, 2019). The RMS and entropy were averaged across the large grids to obtain one value for each side.…”

“…Surface electromyography (EMG) can be used to evaluate the effects of both chronic and acute pain on muscle behavior (Madeleine et al, 2006;Lariviere et al, 2011;Falla et al, 2017) and classic bipolar EMG has been used extensively to quantify the effect of chronic or persistent LBP on muscle activity during lifting (Fabian et al, 2005;Ershad et al, 2009;Correia et al, 2016). In more recent studies, spurred on by advances in EMG technology, high-density EMG (HDEMG) has been used to evaluate changes in the spatial distribution of back muscle activity in people with LBP (Abboud et al, 2014;Falla et al, 2014;Martinez-Valdes et al, 2019;Sanderson et al, 2019). These studies have identified differences in the topographical distribution of erector spinae (ES) activity in people with LBP, including reduced re-distribution of activity during both dynamic and static tasks (Abboud et al, 2014;Falla et al, 2014).…”

Surface EMG in Clinical Assessment and Neurorehabilitation: Barriers Limiting Its Use

“…The literature concerning sEMG applications in sports is very extensive and focused on physiology ( 191 , 192 ) training, prevention of injury, and recovery after injury (in particular the anterior cruciate ligament injury ( 193 ). Many sports have been investigated, in particular golf ( 194 ), jumping ( 195 ), cycling ( 196 ), sprinting ( 197 ), volleyball ( 198 ), but also strength training ( 199 , 200 ), back pain in rowers ( 201 ), patellofemoral pain ( 170 , 202 ), and aging ( 59 , 203 ). The distribution of muscle fiber conduction velocity, related to fiber diameter, may provide insight in muscle structure.…”

Perturbation-based trunk stabilization training in elite rowers: A pilot study

“…Martinez-Valdes et al concluded an inefficient activation of the erector spinae in rowers with LBP due to higher activation of the erector spinae and a less complex EMG signal [18]. Further, rowing is characterised by high frequent bending of the lumbar spine [19], which possibly affects LBP or vice versa [20,21].…”