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Study on lumbar kinematics and the risk of low back disorder in female university students by using shoes of different heel heights

Issue title: IEA 2012: 18th World congress on Ergonomics - Designing a sustainable future

Article type: Research Article

Authors: Iqbal, Rauf | De, Amitabha | Mishra, Wricha | Maulik, Shreya | Chandra, AM

Affiliations: Assistant Professor, National Institute of Industrial Engineering, Vihar lake, Mumbai, India | Professor, National Institute of Industrial Engineering, Vihar lake, Mumbai, India | Research Fellow, National Institute of Industrial Engineering, Vihar lake, Mumbai, India | Professor, University of Calcutta, Kolkata, India

Note: [] Corresponding author. E-mail: rauf_iq@yahoo.com

Keywords: iLMM, high heel, Lumbar kinematics, LBD

DOI: 10.3233/WOR-2012-1026-2521

Journal: Work, vol. 41, no. Supplement 1, pp. 2521-2526, 2012

Published: 2012
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Abstract

The study was taken up to investigate the effects of heel heights on lumbar kinematics and the risk of Low Back Disorder (LBD) in females. Nineteen female university students (24.5±3.36 yrs) volunteered in the study. Lumbar kinematics was measured by using Industrial Lumbar Motion Monitor (iLMM). The volunteers were asked to walk for a distance of 50 meters in 3 different given conditions i.e bare foot (Heel 0), with flat heels (Heel 1) and with high heels (Heel 2). Heights of Heel 1 and Heel 2 were 1.5±0.84 cm and 5.5±1.70 cm respectively. The Lumbar kinematic parameters studied were- Average Twisting Velocity (ATV), Maximum Sagital Flexion (MSF) and Maximum Lateral Velocity (MLV). It was observed that all the above mentioned Lumbar kinematics - ATV, MSF and MLV increases with increase of heel heights, which in turn increases the risk of LBD. As a result of increase in Lumbar kinematic values with increase in heel heights, LBD risk has also increased. Mean and SD of the LBD risk with Heel 0, Heel 1 and Heel 2 were 16.79±6.04%, 19.00±7.38% and 22.11±6.98% respectively. Lower stature with high heels showed higher risk of LBD than the higher stature with high heels.

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