Comparing plantar shear strain in patients with a previous diabetes‐related foot ulcer and those at low risk for ulceration using the STrain Analysis and Mapping of the Plantar Surface ( STrain Analysis and Mapping of the Plantar Surface (STAMPS) ) system
Authors' conclusion
Participants with a recently healed DFU exhibited elevated strain characteristics compared with the low-risk group. Furthermore, prospective work will explore the relationship between SMAG and DFU formation.
Study context
- Population
- People with diabetes with a recently healed DFU or at low risk for ulceration; walking with the STAMPS insole in a standardised shoe and the Pedar-X insole
- Exposure
- Prior DFU vs low risk for ulceration
- Prior DFUn = Twenty
- Low riskn = 14reference
- Outcome
- Overall and regional peak plantar shear strain (SMAG) and peak plantar pressure (PPP)
Main finding
As reported in the abstract
Overall peak SMAG
P = 0.003
Observational data: associations, not effects.
Further findings
| Outcome | Values |
|---|---|
| Peak SMAG at DFU sites vs non-DFU sites, within Prior DFU | DFU sites 11.7% (IQR 7.6–25.6%) · Non-DFU sites 7.70% (IQR 4.4–13.1%) |
| Peak SMAG, standard shoe vs walker-boot (offloading assessment, Prior DFU) | Standard shoe 27.4% (IQR 17.2–32.7) · Walker-boot 8.03% (IQR 6.3–12.2) |
- Peak SMAG, standard shoe vs walker-boot (offloading assessment, Prior DFU): 16 completed offloading assessments
Peak SMAG at DFU sites vs non-DFU sites, within Prior DFU
- SMAG elevated at DFU sites compared with non-DFU sites
Original publication
Comparing plantar shear strain in patients with a previous diabetes‐related foot ulcer and those at low risk for ulceration using the STrain Analysis and Mapping of the Plantar Surface ( STAMPS ) system. Diabet Med. Published 9 November 2025. doi:10.
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