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The Effect of Protective Socks with Functional Insoles on Plantar Foot Pressure in Diabetes Patients
J Kor Phys Ther 2018;30(6):224-228
Published online December 30, 2018;  https://doi.org/10.18857/jkpt.2018.30.6.224
© 2018 The Korea Society of Physical Therapy.

Hyun Soo Kim1, Do Young Jung2

1Department of Physical Therapy, Joongbu University, Chungnam; 2Laboratory of Physiopathologic Science, Department of Physical Therapy, Joongbu University, Chungnam, Korea
Do Young Jung E-mail ptsports@joongbu.ac.kr
Received November 13, 2018; Revised December 27, 2018; Accepted December 31, 2018.
This is an Open Access article distribute under the terms of the Creative Commons Attribution Non-commercial License (Http://creativecommons.org/license/by-nc/4.0.) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Purpose: The most common cause of plantar ulceration is an excessive plantar pressure in patients with peripheral neuropathy. Foot orthosis and therapeutic footwear have been used to decrease the plantar pressure and prevent the plantar ulceration in in diabetes patients. We investigated whether protective sock with functional insoles reduce plantar pressure while walking in 17 diabetes patients.
Methods: An in-shoe measurement device was used to measure the peak plantar pressure while walking. Peak plantar pressure data were collected while walking under two conditions: 1) wearing diabetic sock and 2) wearing the protective sock with functional insoles. Each subject walked 3 times in 10-m corridor under three conditions, and data were collected in 3 steps in the middle of corridor with in right and left feet, respectively. Pared t-test was used to compare the peak plantar pressures in three plantar areas under these two conditions.
Results: The protective sock with functional insoles significantly reduced the peak plantar pressure on the lateral rearfoot, but significantly increased the peak plantar pressure on the middle forefoot, and medial midfoot (p<0.05). However, there were not significant in medial and lateral forefoot, lateral midfoot, and medial rearfoot between diabetic sock and the protective sock conditions (p>0.05).
Conclusion: The protective sock with functional insoles reduced plantar pressures in the rearfoot and supported the medial longitudinal arch. However, it is necessary to change the position of metatarsal pad in the insole design of forefoot area to prevent diabetic foot ulceration.
Keywords : Diabetes mellitus, Insole, Plantar pressures, Sock


December 2018, 30 (6)
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