Quantification of effectiveness prior to clinical application: the example of silicone socks for diabetics
© Giacomozzi et al; licensee BioMed Central Ltd. 2012
Published: 10 April 2012
To avoid abnormal foot local loading while maintaining a physiological foot biomechanics does represent a challenge in the management of Diabetic foot and a valuable instrument to counter the onset of the ulceration process. The authors hypothesized that silicone socks may help in keeping dynamic peak pressures below risky values. The study describes the methodology the authors used to assess the effectiveness of the socks prior to the launch of the clinical application on Diabetic patients.
Materials and methods
Silicone socks were tested on a healthy volunteer during barefoot walking without and with socks; a calibrated EMED pressure platform – capacitive technology, 4sens/cm2, accuracy 3% - was used at 50Hz to acquire 30 at regimen steps for the left foot under each condition; data were temporally normalised and averaged; main kinetic parameters were extracted; vertical force values and curves were used to characterize the volunteer’s foot biomechanics.
Difference in force <3% - the device accuracy level - and difference in peak pressure and in %RMSE much > 3% proved the potential effectiveness of the silicone socks in reducing local loading without changing foot biomechanics. Tests under different walking speeds, body weights and peak pressures are in progress.
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