Corrective Insole with Forefoot Risers for Foot Strike Transition
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Solution Overview
Problem
Current shoes promote heel striking, leading to disruptions in the central nervous system and increased risk of joint pain, injuries, and improper biomechanics, such as leg cramping, shin splints, and plantar fasciitis, especially in recreational activities.
Innovation Solution
A corrective shoe insole system with a thicker forefoot portion than heel portion, featuring detachable forefoot risers made of resilient materials like silicone or EVA foam, designed to promote positive forefoot striking by creating an incline angle, allowing incremental adjustments to prevent injury and muscle strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If shoes are designed with a negative heel to promote heel striking, then ease of operation is improved, but reliability deteriorates due to increased risk of joint pain, injuries, and improper biomechanics
Solution Approach 1:
The patent inverts the traditional shoe design by making the forefoot portion thicker than the heel portion, creating a positive forefoot incline instead of a negative heel. This reversal promotes forefoot striking rather than heel striking, thereby improving reliability by reducing joint pain and injuries while maintaining ease of operation through natural biomechanical alignment
Solution Approach 2:
The patent changes the thickness parameter of the insole forefoot portion to be greater than the heel portion, creating a positive incline angle. This parameter change fundamentally alters the foot striking mechanics from heel strike to forefoot strike, resolving the contradiction between ease of operation and reliability by aligning with natural running biomechanics observed in the African Maasai Tribe
2Reliability
If the thickness of the forefoot portion is gradually increased to promote positive forefoot striking, then reliability is improved by preventing injury and muscle strain, but device complexity increases due to multiple forefoot risers
Solution Approach 1:
The patent segments the forefoot support into multiple detachable forefoot risers of different thicknesses that can be individually selected or combined. This segmentation allows users to gradually increase forefoot thickness to prevent injury while keeping the system manageable through modular components rather than a single complex structure
Solution Approach 2:
The patent makes the forefoot riser configuration dynamic and adjustable, allowing users to change the thickness and number of risers based on their comfort and progress. This dynamic adjustability resolves the contradiction by enabling reliability improvement through gradual adaptation while maintaining simplicity through user-controlled configuration rather than fixed complex structures
3Reliability
If shoes are designed with a positive forefoot to promote forefoot striking, then reliability is improved by reducing joint pain and injuries, but ease of operation deteriorates due to improper biomechanics and muscle strain
Solution Approach 1:
The patent applies preliminary action by providing a gradual transition mechanism through multiple forefoot risers of increasing thickness. Users start with thinner risers and progressively move to thicker ones, allowing the body to adapt to forefoot striking mechanics over time. This preliminary gradual adaptation resolves the contradiction by improving reliability through proper biomechanics while maintaining ease of operation through progressive acclimatization rather than abrupt changes
Data Source
AI summary
A corrective shoe insole system is configured to produce and promote a positive forefoot. A corrective shoe insole system includes an insole having a forefoot portion and a heel portion. The forefoot portion is be thicker than the heel portion to promote forefoot striking when walking or running. An insole may have one or more forefoot risers coupled thereto to provide a specific positive forefoot insole for the user. A user may gradually increase the thickness of live forefoot portion of the insole by adding or changing out forefoot risers. This gradual increase in forefoot thickness of the insole may prevent injury and muscle strain from the adjusted foot striking position. A forefoot riser may be detachably attachable to the forefoot portion of the insole and an attachment feature may provide positive and secure attachment to prevent movement of the forefoot riser.