caa a22 4500 445832290 CHVBK 20180317145319.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00586-011-1825-3 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1825-3 The effect of acute back muscle fatigue on postural control strategy in people with and without recurrent low back pain [Elektronische Daten] [Ege Johanson, Simon Brumagne, Lotte Janssens, Madelon Pijnenburg, Kurt Claeys, Mati Pääsuke] Back muscle fatigue decreases the postural stability during quiet standing, but it is not known whether this fatigue-induced postural instability is due to an altered proprioceptive postural control strategy. Therefore, the aim of the study was to evaluate if acute back muscle fatigue may be a mechanism to induce or sustain a suboptimal proprioceptive postural control strategy in people with and without recurrent low back pain (LBP). Postural sway was evaluated on a force platform in 16 healthy subjects and 16 individuals with recurrent LBP during a control (Condition1) and a back muscle fatigue condition (Condition2). Back muscle fatigue was induced by performing a modified Biering-Sørensen test. Ankle and back muscle vibration, a potent stimulus for muscle spindles, was used to differentiate proprioceptive postural control strategies during standing on a stable and unstable support surface, where the latter was achieved by placing a foam pad under the feet. Ankle signals were predominantly used for postural control in all subjects although, in each condition, their influence was greater in people with LBP compared to healthy subjects (p<0.001). The latter group adapted their postural control strategy when standing on an unstable surface so that input from back muscles increased (p<0.001). However, such adaptation was not observed when the back muscles were fatigued. Furthermore, people with LBP continued to rely strongly on ankle proprioception regardless of the testing conditions. In conclusion, these findings suggest that impaired back muscle function, as a result of acute muscle fatigue or pain, may lead to an inability to adapt postural control strategies to the prevailing conditions. Springer-Verlag, 2011 Postural strategy nationallicence Proprioception nationallicence Muscle vibration nationallicence Sensory reweighting nationallicence Postural balance nationallicence Johanson Ege Faculty of Exercise and Sport Sciences, Institute of Exercise Biology and Physiotherapy, University of Tartu, 5 Jakobi Street, 51014, Tartu, Estonia aut Brumagne Simon Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut Janssens Lotte Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut Pijnenburg Madelon Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut Claeys Kurt Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut Pääsuke Mati Faculty of Exercise and Sport Sciences, Institute of Exercise Biology and Physiotherapy, University of Tartu, 5 Jakobi Street, 51014, Tartu, Estonia aut European Spine Journal Springer-Verlag 20/12(2011-12-01), 2152-2159 0940-6719 20:12<2152 2011 20 586 https://doi.org/10.1007/s00586-011-1825-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1825-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Johanson Ege Faculty of Exercise and Sport Sciences, Institute of Exercise Biology and Physiotherapy, University of Tartu, 5 Jakobi Street, 51014, Tartu, Estonia aut NATIONALLICENCE 700 1- Brumagne Simon Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Janssens Lotte Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Pijnenburg Madelon Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Claeys Kurt Musculoskeletal Research Unit, Faculty of Kinesiology and Rehabilitation Sciences, Department of Rehabilitation Sciences, University of Leuven (K.U.Leuven), Tervuursevest 101, 3001, Leuven, Belgium aut NATIONALLICENCE 700 1- Pääsuke Mati Faculty of Exercise and Sport Sciences, Institute of Exercise Biology and Physiotherapy, University of Tartu, 5 Jakobi Street, 51014, Tartu, Estonia aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/12(2011-12-01), 2152-2159 0940-6719 20:12<2152 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer