Virtualizing the assessment: a novel pragmatic paradigm to evaluate lower extremity joint perception in diabetes.

Gerontology
Gurtej S GrewalBijan Najafi

Abstract

Individuals with diabetes have a higher risk of falls and fall-related injuries. People with diabetes often develop peripheral neuropathy (DPN) as well as nerve damage throughout the body. In particular, reduced lower extremity proprioception due to DPN may cause a misjudgment of foot position and thus increase the risk of fall. An innovative virtual obstacle-crossing paradigm using wearable sensors was developed in an attempt to assess lower extremity position perception damage due to DPN. 67 participants (age 55.4 ± 8.9, BMI 28.1 ± 5.8) including diabetics with and without DPN as well as aged-matched healthy controls were recruited. Severity of neuropathy was quantified using a vibratory perception threshold (VPT) test. The ability of perception of lower extremity was quantified by measuring obstacle-crossing success rate (OCSR), toe-obstacle clearance (TOC), and reaction time (T(R)) while crossing a series of virtual obstacles with heights at 10% and 20% of the subject's leg length. No significant difference was found between groups for age and BMI. The data revealed that DPN subjects had a significantly lower OCSR compared to diabetics with no neuropathy and controls at an obstacle size of 10% of leg length (p < 0.05). DPN ...Continue Reading

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Citations

Mar 12, 2013·Journal of Aging Research·Ryan T CrewsStephanie C Wu
Jul 15, 2015·Diabetic Medicine : a Journal of the British Diabetic Association·J C HandsakerN D Reeves
Dec 17, 2014·Journal of Neuroengineering and Rehabilitation·Michael SchwenkBijan Najafi
Mar 30, 2013·Clinical Journal of Oncology Nursing·Cindy TofthagenRachelle Hopgood
Oct 16, 2013·Journal of Diabetes Science and Technology·Gurtej S GrewalBijan Najafi
May 6, 2017·Journal of Rehabilitation Research and Development·Michael SchwenkBijan Najafi
Dec 4, 2013·Journal of the American Podiatric Medical Association·Gurtej S GrewalBijan Najafi

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