Swing-Phase Plantar Stimulation and Gait Parameters in Patients With Diabetic Neuropathy: A Preliminary Study

Area of Science:

• Biomedical Engineering
• Neurology
• Gait Analysis

Background:

• Diabetic peripheral neuropathy (DPN) affects nearly 50% of diabetes mellitus patients, increasing fall risk due to impaired balance.
• Vibrotactile stimulation shows promise for improving gait, but its effects during the swing phase of gait in DPN remain uninvestigated.

Purpose of the Study:

• To investigate the impact of targeted swing-phase vibrotactile stimulation on gait parameters in individuals with DPN.

Main Methods:

• A prospective controlled study involving a DPN group and a control group.
• Participants performed walking tests with and without vibrotactile stimulation delivered via smart shoes.
• Gait parameters including stride length, velocity, and heel clearance were measured and analyzed.

Main Results:

• DPN participants exhibited poorer baseline gait parameters compared to controls, including shorter stride length and lower walking velocity.
• No immediate significant improvement in gait parameters was observed in the DPN group following swing-phase vibrotactile stimulation.
• Between-group differences in heel clearance were noted but attenuated after adjusting for age and BMI.

Conclusions:

• Immediate application of swing-phase vibrotactile stimulation did not yield measurable gait improvements in DPN patients.
• Enhanced gait benefits may necessitate more demanding tasks, prolonged stimulation, or investigation of variability data.
• Future research should focus on larger, age-matched trials to determine efficacy and identify potential responders within the DPN population.