PMID- 33082380
OWN - NLM
STAT- MEDLINE
DCOM- 20210308
LR  - 20240330
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 10
IP  - 1
DP  - 2020 Oct 20
TI  - Influence of low back pain and its remission on motor abundance in a low-load 
      lifting task.
PG  - 17831
LID - 10.1038/s41598-020-74707-4 [doi]
LID - 17831
AB  - Having an abundance of motor solutions during movement may be advantageous for 
      the health of musculoskeletal tissues, given greater load distribution between 
      tissues. The aim of the present study was to understand whether motor abundance 
      differs between people with and without low back pain (LBP) during a low-load 
      lifting task. Motion capture with electromyography (EMG) assessment of 15 muscles 
      was performed on 48 participants [healthy control (con) = 16, remission LBP 
      (rLBP) = 16, current LBP (cLBP) = 16], during lifting. Non-negative matrix 
      factorization and uncontrolled manifold analysis were performed to decompose 
      inter-repetition variability in the temporal activity of muscle modes into goal 
      equivalent (GEV) and non-goal equivalent (NGEV) variabilities in the control of 
      the pelvis and trunk linear displacements. Motor abundance occurs when the ratio 
      of GEV to NGEV exceeds zero. There were significant group differences in the 
      temporal activity of muscle modes, such that both cLBP and rLBP individuals 
      demonstrated greater activity of muscle modes that reflected lumbopelvic 
      coactivation during the lifting phase compared to controls. For motor abundance, 
      there were no significant differences between groups. Individuals with LBP, 
      including those in remission, had similar overall motor abundance, but use 
      different activation profiles of muscle modes than asymptomatic people during 
      lifting.
FAU - Liew, Bernard X W
AU  - Liew BXW
AD  - School of Sport, Rehabilitation and Exercise Sciences, University of Essex, 
      Colchester, CO4 3SQ, Essex, UK. bl19622@essex.ac.uk.
FAU - De Nunzio, Alessandro Marco
AU  - De Nunzio AM
AD  - LUNEX International University of Health, Exercise and Sports, 50, avenue du Parc 
      des Sports, 4671, Differdange, Luxembourg.
FAU - Srivastava, Shraddha
AU  - Srivastava S
AD  - Department of Health Sciences and Research, College of Health Professions, 
      Medical University of South Carolina, 77 President Street, Charleston, SC, 29425, 
      USA.
FAU - Falla, Deborah
AU  - Falla D
AD  - Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, 
      Exercise and Rehabilitation Sciences, University of Birmingham, Edgbaston, 
      B152TT, UK.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20201020
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
MH  - Adult
MH  - Case-Control Studies
MH  - Cross-Sectional Studies
MH  - Electromyography
MH  - Female
MH  - Humans
MH  - *Lifting
MH  - Low Back Pain/*physiopathology
MH  - Male
MH  - Middle Aged
MH  - Muscle, Skeletal/physiopathology
MH  - Pelvis/physiopathology
MH  - Spine/physiopathology
MH  - *Task Performance and Analysis
MH  - Torso/physiopathology
MH  - Young Adult
PMC - PMC7576852
COIS- The authors declare no competing interests.
EDAT- 2020/10/22 06:00
MHDA- 2021/03/09 06:00
PMCR- 2020/10/20
CRDT- 2020/10/21 05:56
PHST- 2020/03/17 00:00 [received]
PHST- 2020/10/06 00:00 [accepted]
PHST- 2020/10/21 05:56 [entrez]
PHST- 2020/10/22 06:00 [pubmed]
PHST- 2021/03/09 06:00 [medline]
PHST- 2020/10/20 00:00 [pmc-release]
AID - 10.1038/s41598-020-74707-4 [pii]
AID - 74707 [pii]
AID - 10.1038/s41598-020-74707-4 [doi]
PST - epublish
SO  - Sci Rep. 2020 Oct 20;10(1):17831. doi: 10.1038/s41598-020-74707-4.