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Title:	Effects of wearing back belt on vertical load transfer, lumbopelvic muscle strength and perceived difficulty in performing active straight leg raise test among patients with non-specific low back pain
Authors:	Deepashini a/p Harithasan (P64636)
Supervisor:	Baharudin Hj. Omar, Professor Dr.
Keywords:	Low back pain Back belts Lumbopelvic Dissertations, Academic -- Malaysia
Issue Date:	8-Oct-2016
Description:	Manual carrying of loads is one of the risk factors of low back pain. Although there is limited evidence to support the use of a back belts in the prevention of low back pain, patients with low back pain reported reduced pain during manual carrying with the use of a back belt. There is limited information regarding the use of a back belt on vertical load transfer during manual carrying, lumbopelvic muscle strength and perceived difficulty in performing the active straight leg raise (ASLR) test among patients with non-specific low back pain (NSLBP). Thus, the purpose of this study was to examine the use of a back belt during manual carrying of loads using single dominant hand on vertical load transfer. In addition, lumbopelvic muscle strength and perceived difficulty in performing ASLR test with and without the use of a back belt were examined. A total of 20 NSLBP patients and 20 matched healthy individuals (MHI) were recruited according to the predefined recruitment criteria. Vertical load transfer was measured in standing positing and during walking while carrying incremental loads (0kg, 5kg, 7.5kg and 10kg) using dominant hand on a Matscan pressure assessment system. Parameters measured were plantar pressure (PP), maximum force (MF) and contact area (CA). Lumbopelvic muscle strength during prone hip extension (PHE) test and perceived difficulty in performing the ASLR test was measured using a hand held dynamometer and a 6-point Likert scale, respectively. A three-way ANOVA (group × load × condition) was conducted to examine the differences in vertical load transfer (PP, MF and CA) between groups (2 levels: NSLBP and MHI), between loads (4 levels: 0kg, 5kg, 7.5kg and 10kg) and between conditions (2 levels: with and without back belt) in standing and walking. Lumbopelvic muscle strength and perceived difficulty in performing ASLR test among the groups with and without a back belt were analyzed using a two-way ANOVA (group × condition). The results demonstrated an increase in vertical load transfer (p<0.05), increase lumbopelvic muscle strength (p<0.05) and decrease of perceived difficulty in performing ASLR test (p<0.05) with the use of a back belt among NSLBP patients. The findings suggest that the use of a back belt in patients with NSLBP may improve vertical load transfer, maximize lumbopelvic muscle strength and decrease perceived difficulty during a load carrying task. An increase in vertical load transfer with the use of a back belt suggest more efficient load transfer from the lumbar pelvic region to the lower limb. Further biomechanical and psychosocial studies may be required to justify the use of back belts in patients with NSLBP when carrying loads.,Doctor of Philosophy
Pages:	187
Call Number:	WE20.D311e 2016 9
Publisher:	UKM, Kuala Lumpur
Appears in Collections:	Faculty of Health Sciences / Fakulti Sains Kesihatan

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