TY - JOUR
T1 - Trunk stabilization estimated using pseudorandom force perturbations
T2 - a reliability study
AU - Griffioen, M.
AU - Maaswinkel, E.
AU - Zuurmond, W. W. A.
AU - van Dieen, Jaap H.
AU - Perez, Roberto
N1 - M1 - 2
ISI Document Delivery No.: DF7QF Times Cited: 2 Cited Reference Count: 43 Griffioen, M. Maaswinkel, E. Zuurmond, W. W. A. van Dieen, J. H. Perez, R. S. G. M. van Dieen, Jaap/0000-0002-7719-5585 Dutch Technology Foundation STW part of the Netherlands Organization for Scientific Research (NWO) [STW 10732]; Ministry of Economic Affairs; [10732: QDISC] This research is supported by the Dutch Technology Foundation STW (Grant no. STW 10732), which is part of the Netherlands Organization for Scientific Research (NWO), and which is partly funded by the Ministry of Economic Affairs. See www.neurosipe.nl - Project 10732: QDISC. 2 0 ELSEVIER SCI LTD OXFORD J BIOMECH
PY - 2016
Y1 - 2016
N2 - Measurement of the quality of trunk stabilization is of great interest to identify its role in first occurrence, recurrence or persistence of low-back pain (LBP). Our research group has developed and validated a method to quantify intrinsic and reflex contributions to trunk stabilization from the frequency response function (FRF) of thorax movement and trunk extensor EMG to perturbations applied by a linear actuator. However, the reliability of this method is still unknown. Therefore, the purpose of this study was to investigate the between-day reliability of trunk FRFs in healthy subjects and LBP patients. The test-retest ICC's in patients were substantial for both admittance and reflex gains (ICC3,1 > 0.73 and 0.67). In healthy subjects, the reliability of admittance gain was also substantial (ICC3,1 0.66), but the reliability of the reflexive gain was only moderate (ICC3,1 0.44). Although sample sizes were limited (13 healthy subjects and 18 LBP patients), these results show that trunk stabilization can be measured reliably, and represent a promising step towards using this method in further research in LBP patients. (C) 2015 Elsevier Ltd. All rights reserved.
AB - Measurement of the quality of trunk stabilization is of great interest to identify its role in first occurrence, recurrence or persistence of low-back pain (LBP). Our research group has developed and validated a method to quantify intrinsic and reflex contributions to trunk stabilization from the frequency response function (FRF) of thorax movement and trunk extensor EMG to perturbations applied by a linear actuator. However, the reliability of this method is still unknown. Therefore, the purpose of this study was to investigate the between-day reliability of trunk FRFs in healthy subjects and LBP patients. The test-retest ICC's in patients were substantial for both admittance and reflex gains (ICC3,1 > 0.73 and 0.67). In healthy subjects, the reliability of admittance gain was also substantial (ICC3,1 0.66), but the reliability of the reflexive gain was only moderate (ICC3,1 0.44). Although sample sizes were limited (13 healthy subjects and 18 LBP patients), these results show that trunk stabilization can be measured reliably, and represent a promising step towards using this method in further research in LBP patients. (C) 2015 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.jbiomech.2015.12.007
DO - 10.1016/j.jbiomech.2015.12.007
M3 - Article
C2 - 26708964
SN - 0021-9290
VL - 49
SP - 244
EP - 251
JO - Journal of Biomechanics
JF - Journal of Biomechanics
ER -