Activity Reduction vs Advice for Plantar Hotspots in Diabetes

This randomized proof-of-concept trial will evaluate whether an individualized, objectively monitored temporary reduction in walking activity can accelerate resolution of plantar thermal hotspots in adults with diabetes who are at high risk of foot ulceration. A plantar thermal hotspot is defined as a temperature difference greater than 2.2°C between corresponding sites on the two feet on two consecutive days. Participants with a confirmed eligible hotspot will be randomly assigned to either an individualized numerical daily step-count target or standard non-quantified advice to reduce walking and weight-bearing activity. Both groups will receive standard diabetic-foot preventive care, daily foot-temperature monitoring, and objective activity monitoring. The primary outcome is the time from randomization to sustained resolution of the index plantar thermal hotspot during the first 14 days. Participants will be followed for 28 days to assess hotspot recurrence, foot-related outcomes, safety, and acceptability.