Rocker Sole
A curved modification applied to the sole of a shoe or orthotic footwear that alters the biomechanical roll-through of the foot during walking to offload specific areas.
Full Definition
A rocker sole is a convex curvature built into the sole of therapeutic footwear or shoe modifications to facilitate forward propulsion during gait without requiring full ankle or toe movement. It is used to reduce plantar pressure at vulnerable sites such as metatarsal heads in diabetic foot management, post-surgical conditions, or severe arthritis. Several subtypes exist, including toe-only, heel-to-toe, and negative-heel rockers, and editors must take care to preserve the exact subtype named by the clinician. The term is sometimes hyphenated ('rocker-sole') when used as a compound modifier before a noun.
Usage
Usage note: Hyphenate as 'rocker-sole' only when used attributively (e.g., 'rocker-sole shoe'). Do not use 'rocker bottom' in clinical writing as it may be confused with the dermatological description of a rocker-bottom foot deformity.
In Context
- "A heel-to-toe rocker sole was prescribed to reduce peak plantar pressure at the first metatarsal head." — Orthotic prescription form
- "When 'rocker sole' precedes a noun, hyphenate: 'rocker-sole modification'." — Orthotic services editorial style guide