Reliability and Validity of Standing Back Extension Test for Detecting Motor Control Impairment in Subjects with Low Back Pain
Introduction: Low back pain is a chronic health problem with high socioeconomic impact. Specific diagnosis or treatment approach has not yet effectively established to treat chronic low back pain. Standing Back Extension Test is one of the clinical measures to detect the passive extension subgro...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2016-01-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/7142/14987_CE[Ra]_F(Sh)_PF1(BMAK)_PFA(AK)_PF2(PAG).pdf |
| Summary: | Introduction: Low back pain is a chronic health problem with
high socioeconomic impact. Specific diagnosis or treatment
approach has not yet effectively established to treat chronic low
back pain. Standing Back Extension Test is one of the clinical
measures to detect the passive extension subgroup of Motor
Control Impairment (MCI); which could have an impact on spinal
stability leading to recurrent chronic low back pain. Reliability
and validity of this test is not fully established.
Aim: To determine the intra-rater and inter-rater reliability and
concurrent validity of the Standing Back Extension Test for
detecting MCI of the lumbar spine.
Materials and Methods: A total of 50 subjects were included
in the study, 25 patients with Non Specific Low Back Pain
(NSLBP) (12 men, 13 women) and 25 healthy controls (12 men,
13 women) were recruited into the study. All subjects performed
the test movement. Two raters blinded to the subjects rated
the test performance as either ‘Positive’ or ‘Negative’ based on
the predetermined rating protocol. The thickness of Transverse
Abdominis (TrA) muscle was assessed using Rehabilitative
Ultrasound Imaging (RUSI).
Statistical test used: For reliability, the kappa coefficient with
percent agreement was calculated and for assessing the validity
Receiver Operator Characteristic (ROC) curves and Area under
the Curve (AUC) were constructed.
Results: The standing back extension test showed very good
intra-rater (k=0.87 with an agreement of 96%) and good interrater (k=0.78 with an agreement of 94%) reliability and high
AUC for TrA muscle.
Conclusion: The standing back extension test was found to
be a reliable and a valid measure to detect passive extension
subgroup for MCI in subjects with low back pain. |
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| ISSN: | 2249-782X 0973-709X |