AIMS: Gait dysfunction in subjects with diabetes mellitus (DM) contributes to falling and subsequent injuries. Using a portable device (GaitMeter™), we measured gait parameters in DM patients with and without diabetic peripheral neuropathy (DPN) during flat surface walking. We hypothesized that DM patients with DPN and neuropathic pain (NeP) would have greater gait step variability than those with DPN without NeP. METHODS: Subjects with DPN and at least moderate NeP (DPN-P), DPN without NeP (DPN-NoP), DM without DPN, and control subjects without DM were assessed. Our outcome measure was gait variability for step length and velocity. DPN severity was quantified using the Toronto Clinical Scoring System and the Utah Early Neuropathy Score. Falls and their outcomes were retrospectively quantified. RESULTS: Each cohort contained≥20 subjects. Durations of DM and HbA1C were greatest amongst DPN cohorts. DPN-P participants had greater variability of step length and step velocity, except for DM only participants. DPN-P participants also reported greater risk of hospitalizations for fall-related injuries, and greater fear of falling. Modest negative relationships emerged for step length with step velocity, reported falls and pain severity. CONCLUSIONS: NeP contributes to gait variability, potentially contributing to the risk of falling in DM patients.
AIMS: Gait dysfunction in subjects with diabetes mellitus (DM) contributes to falling and subsequent injuries. Using a portable device (GaitMeter™), we measured gait parameters in DMpatients with and without diabetic peripheral neuropathy (DPN) during flat surface walking. We hypothesized that DMpatients with DPN and neuropathic pain (NeP) would have greater gait step variability than those with DPN without NeP. METHODS: Subjects with DPN and at least moderate NeP (DPN-P), DPN without NeP (DPN-NoP), DM without DPN, and control subjects without DM were assessed. Our outcome measure was gait variability for step length and velocity. DPN severity was quantified using the Toronto Clinical Scoring System and the Utah Early Neuropathy Score. Falls and their outcomes were retrospectively quantified. RESULTS: Each cohort contained≥20 subjects. Durations of DM and HbA1C were greatest amongst DPN cohorts. DPN-Pparticipants had greater variability of step length and step velocity, except for DM only participants. DPN-Pparticipants also reported greater risk of hospitalizations for fall-related injuries, and greater fear of falling. Modest negative relationships emerged for step length with step velocity, reported falls and pain severity. CONCLUSIONS: NeP contributes to gait variability, potentially contributing to the risk of falling in DMpatients.
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