Intensity of chronic pain modifies postural control in low back patients
PBN-AR
Instytucja
Wydział Fizjoterapii (Akademia Wychowania Fizycznego we Wrocławiu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
European Journal of Pain
ISSN
1090-3801
EISSN
Wydawca
ELSEVIER SCI LTD
DOI
URL
Rok publikacji
2013
Numer zeszytu
4
Strony od-do
612-620
Numer tomu
17
Liczba arkuszy
Autorzy
(liczba autorów: 2)
Streszczenia
Język
en
Treść
Objective Some recent studies have provided evidence that alteration in central motor control may have causative impact on the emergence and sustenance of chronic pain. We hypothesized that comparison of postural control between patients with high (HP) and low pain (LP) level would display intergroup differences in favour of the LP group lending support for the postulated relationship between altered cortical function and pain. Methods Motivated by this concept, we investigated postural control in 36 subjects with chronic low back pain (CLBP) stratified into two groups according to the reported rest pain intensity on a numerical rating scale: LP group (n = 16) and high pain (HP) group (n = 20). The pressure pain threshold (PPT) of selected muscles was assessed on the involved and uninvolved sides. Body balance was investigated on hard or soft surface using postural performance. Results As regards pain measurements, the PPT of muscles was lower in HP than in LP (P < 0.05), without differences between the involved and uninvolved sides. Results indicated that patients in HP group relied more on visual input on hard surface than those in LP group (P < 0.05). Changing the stance condition from hard surface to foam decreased sway entropy in LP (P < 0.001), accounting for higher cognitive investment in balance control, while HP had the same level of sway entropy. Conclusions Body balance measurements seemed to confirm the hypothesized role of the altered executive function in the CLBP problems, with a further support from pain assessment that indicated central sensitization. Patients with higher self-reported pain level displayed deficit in the postural adaptability to environmental challenge and lower level of postural automaticity.
Cechy publikacji
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:570614
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