Complex motor representations may not be preserved after complete spinal cord injury
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Complex motor representations may not be preserved after complete spinal cord injury. / Olsson, C. J.
I: Experimental Neurology, Bind 236, Nr. 1, 2012, s. 46-49.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Complex motor representations may not be preserved after complete spinal cord injury
AU - Olsson, C. J.
N1 - Funding Information: This study was financially supported by grants to CJO from the Swedish National Centre for Research in Sports (CIF) . I would especially like to thank Lars Nyberg for valuable comments and support. I would also like to thank the participants for taking part in this study.
PY - 2012
Y1 - 2012
N2 - When using motor imagery to improve rehabilitation after spinal cord injury it is assumed that the motor representations are preserved and that task specific physical training is not necessary. Here I tested this hypothesis by examining P.W. who has a complete spinal cord injury due to an accident. However, P.W. was an elite wheelchair athlete, hence, has experienced a high load of physical training in general. During functional magnetic resonance imaging (fMRI), P.W. imagined wheelchair slalom (a complex motor task P.W. can perform) and stair walking (a complex motor task P.W. no longer can perform). A control group of neurologically intact participants were also included. The results showed that only for the task (wheelchair slalom) P.W. currently could physically perform was the pre-motor cortex recruited. For stair walking P.W. recruited inferior frontal cortex and parietal cortex. The results were confirmed with the control group showing similar pattern but for the opposite tasks. The conclusions from this study are that complex motor representations may not be preserved after a complete spinal cord injury and motor imagery is dependent on the current ability to perform the task physically.
AB - When using motor imagery to improve rehabilitation after spinal cord injury it is assumed that the motor representations are preserved and that task specific physical training is not necessary. Here I tested this hypothesis by examining P.W. who has a complete spinal cord injury due to an accident. However, P.W. was an elite wheelchair athlete, hence, has experienced a high load of physical training in general. During functional magnetic resonance imaging (fMRI), P.W. imagined wheelchair slalom (a complex motor task P.W. can perform) and stair walking (a complex motor task P.W. no longer can perform). A control group of neurologically intact participants were also included. The results showed that only for the task (wheelchair slalom) P.W. currently could physically perform was the pre-motor cortex recruited. For stair walking P.W. recruited inferior frontal cortex and parietal cortex. The results were confirmed with the control group showing similar pattern but for the opposite tasks. The conclusions from this study are that complex motor representations may not be preserved after a complete spinal cord injury and motor imagery is dependent on the current ability to perform the task physically.
KW - FMRI
KW - Motor imagery
KW - Motor representations
KW - Spinal cord injury
U2 - 10.1016/j.expneurol.2012.03.022
DO - 10.1016/j.expneurol.2012.03.022
M3 - Journal article
C2 - 22504114
AN - SCOPUS:84861684322
VL - 236
SP - 46
EP - 49
JO - Experimental Neurology
JF - Experimental Neurology
SN - 0014-4886
IS - 1
ER -
ID: 339261770