Comparison of lower limb muscle strength between diabetic neuropathic and healthy subjects using OpenSim.

Abstract:

:Diabetes neuropathy and vasculopathy are the two major complications of diabetes mellitus, leading to diabetic foot disease, of which the worst consequences are plantar ulcers and amputations. Motor impairments like joint stiffness and loss of balance are distinctive effects of diabetes and they have been extensively explored. However, while altered muscle function has been also assessed through experimentally measured surface electromyography, little is known about muscle forces. The objective of this study was to estimate muscle forces in subjects with diabetes and to use these data to identify differences with respect to a population of healthy subjects matched for age and BMI. This was obtained by generating musculoskeletal models of 10 diabetic and 10 control subjects in OpenSim starting from experimentally recorded data. Dynamic simulations of motion were run and hence muscle forces calculated. Student T test (p<0.05) was used to compare joints kinematics, kinetics and muscle forces between the two populations. Significant changes were observed between lower limb muscle forces and activation of diabetic and healthy subjects, as well as between joints kinematics and kinetics. In particular muscles related to foot movements proved to be stronger in the healthy population. The typical ankle rigidity of the diabetic population was confirmed by a lower range of motion registered at the ankle plantar/flexion angle associated with weaker dorsal-plantar flexor muscles. The information provided by this methodology can help planning specific training programs aiming at augmenting muscle strength and joints mobility, and they can also improve the evaluation of the potential benefits.

journal_name

Gait Posture

journal_title

Gait & posture

authors

Scarton A,Jonkers I,Guiotto A,Spolaor F,Guarneri G,Avogaro A,Cobelli C,Sawacha Z

doi

10.1016/j.gaitpost.2017.07.117

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

194-200

eissn

0966-6362

issn

1879-2219

pii

S0966-6362(17)30828-7

journal_volume

58

pub_type

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