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Effect of insole material on lower limb kinematics and plantar pressures during treadmill walking

Healy, A. and Dunning, D.N. and Chockalingam, N. (2012) Effect of insole material on lower limb kinematics and plantar pressures during treadmill walking. Prosthetics and Orthotics International, 36 (1). pp. 53-62. ISSN 0309-3646

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Abstract or description

Background: Currently there is a paucity of research providing recommendations on the type of orthotic or material used in its construction for different patient requirements.Objectives: To gain a greater understanding of the characteristics of orthotic materials and how they affect gait so to enhance the clinical decision-making process.Study Design: Repeated measures.Methods: Plantar pressures and kinematics were evaluated for 10 participants while walking on a treadmill under various conditions which included, shoes only and shoes with four different flat insoles and custom devices created in each of two densities of two materials.Results: For the flat insoles, medium density ethyl vinyl acetate was found to produce greater peak pressures than at least one of the other material conditions and low and medium density polyurethane were most effective at increasing average contact area and at reducing pressure time integral. For the custom devices, while no significant differences were evident, when compared to the shoe only condition, medium density polyurethane increased average contact area by a greater percentage than the other materials.Conclusions: Results for medium density polyurethane suggest a possible difference in loading characteristics, indicating a potential material suitability for patients with a compromised ability to deal with pressure.Clinical relevanceFindings from the present study provide information for a clinician to draw an evidence-based orthotic prescription based on material properties. © International Society for Prosthetics and Orthotics International 2011.

Item Type: Article
Additional Information: cited By (since 1996) 0
Uncontrolled Keywords: ethylene vinyl acetate copolymer; polyurethan; ethyl vinyl acetate; vinyl derivative, adult; article; clinical decision making; clinical effectiveness; clinical evaluation; controlled study; density; evidence based practice; female; foot sole support; gait; human; human experiment; kinematics; male; normal human; orthopedic equipment; orthopedic shoe; pressure; pressure measurement; shoe; treadmill exercise; walking; biomechanics; diabetic foot; evaluation; exercise test; foot; leg; materials testing; orthotics; physiology; standard; weight bearing, Adult; Biomechanics; Diabetic Foot; Exercise Test; Female; Foot; Gait; Humans; Lower Extremity; Male; Materials Testing; Orthotic Devices; Polyurethanes; Vinyl Compounds; Walking; Weight-Bearing
Subjects: A900 Others in Medicine and Dentistry
B800 Medical Technology
B900 Others in Subjects allied to Medicine
C600 Sports Science
Faculty: Faculty of Health Sciences > Psychology, Sport and Exercise
Related URLs:
Depositing User: Nachiappan CHOCKALINGAM
Date Deposited: 14 Mar 2013 22:24
Last Modified: 15 Nov 2013 12:37
URI: http://eprints.staffs.ac.uk/id/eprint/693

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