Association Between Plantar Pressure Distribution and Postural Stability in Patients with Diabetic Foot: A Cross-Sectional Study

Plantar load distribution and postural stability are key functional domains in diabetic foot assessment, yet their association in early-stage disease remains poorly characterized. This study aimed to investigate the association between static plantar load distribution and postural stability parameters in 31 patients with early-stage diabetic foot (Meggitt–Wagner grade 0–1). A cross-sectional study was conducted with 31 participants (mean age 58.48 ± 9.53 years; 51.6% with loss of protective sensation). Static plantar load distribution was assessed using the Tekscan Pressure Measurement System (Presto-Scan DB software) and postural stability was assessed using the Nintendo Wii Balance Board® under bipedal eyes-open, bipedal eyes-closed, and single-leg stance conditions. Spearman correlation analyses with Benjamini–Hochberg false discovery rate (FDR) correction were performed. A rearfoot-dominant loading pattern was observed bilaterally (right: 61.5 ± 8.2%; left: 61.8 ± 7.9%). Mean CoP sway velocity was 4.78 ± 1.98 mm/s (eyes open) and 5.76 ± 1.88 mm/s (eyes closed) in bipedal stance. No statistically significant associations between plantar load distribution and CoP parameters were found after FDR correction (all q > 0.05). Adults with early-stage diabetic foot exhibit a rearfoot-dominant loading pattern and sensory-dependent postural control behavior. The absence of significant cross-domain associations suggests that static plantar load distribution and postural stability represent complementary assessment targets. Future controlled studies with matched healthy comparators are needed to determine clinical significance.