Microstructural integrity of the superior cerebellar peduncle is associated with an impaired proprioceptive weighting capacity in individuals with non-specific low back pain

Postural control is a complex sensorimotor task that requires an intact network of white matter connections. The ability to weight proprioceptive signals is crucial for postural control. However, research into central processing of proprioceptive signals for postural control is lacking. This is spec...

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Bibliographic Details
Published in:PloS one 2014-06, Vol.9 (6), p.e100666-e100666
Main Authors: Pijnenburg, Madelon, Caeyenberghs, Karen, Janssens, Lotte, Goossens, Nina, Swinnen, Stephan P, Sunaert, Stefan, Brumagne, Simon
Format: Article
Language:English
Subjects:
Adult
Anisotropy
Ankle
Ankle - physiology
Back pain
Biology and Life Sciences
Body Weight
Brain research
Center of pressure
Central Nervous System - physiopathology
Cerebellum
Cerebellum - physiopathology
Control methods
Female
Humans
Information processing
Integrity
Low back pain
Low Back Pain - physiopathology
Low Back Pain - therapy
Magnetic resonance
Magnetic resonance imaging
Male
Medicine and Health Sciences
Microstructure
Muscle, Skeletal - physiology
Muscles
Nerve Tissue - physiopathology
NMR
Nuclear magnetic resonance
Pain
Posture
Posture - physiology
Proprioception
Proprioception - physiology
Rehabilitation
Sensorimotor system
Studies
Substantia alba
Superior cerebellar peduncle
Vibration
Weighting
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Summary:Postural control is a complex sensorimotor task that requires an intact network of white matter connections. The ability to weight proprioceptive signals is crucial for postural control. However, research into central processing of proprioceptive signals for postural control is lacking. This is specifically of interest in individuals with non-specific low back pain (NSLBP), because impairments in postural control have been observed as possible underlying mechanisms of NSLBP. Therefore, the objective was to investigate potential differences in sensorimotor white matter microstructure between individuals with NSLBP and healthy controls, and to determine whether the alterations in individuals with NSLBP are associated with the capacity to weight proprioceptive signals for postural control. The contribution of proprioceptive signals from the ankle and back muscles to postural control was evaluated by local muscle vibration in 18 individuals with NSLBP and 18 healthy controls. Center of pressure displacement in response to muscle vibration was determined during upright standing on a stable and unstable support surface. Diffusion magnetic resonance imaging was applied to examine whether this proprioceptive contribution was associated with sensorimotor white matter microstructure. Individuals with NSLBP showed a trend towards a reduced fractional anisotropy along the left superior cerebellar peduncle compared to healthy controls (p = 0.039). The impaired microstructural integrity of the superior cerebellar peduncle in individuals with NSLBP was significantly correlated with the response to ankle muscle vibration (p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0100666