Consumers Embrace New Insole Based on Bio-Feedback and Foot Strengthening

The Topline Report on Concept and Product Test for Dynapro Insole*

 

Factory employees were asked to use a biofeedback insole during their time at work and record their experience with the device with respect to pain and discomfort localised to the area of the foot and back.

 

a. Objective: To obtain information from prospective consumers on the concept of a biofeedback insole device as well as collect information on their evaluation of the product after a trial period.

 

b. Design: A prospective cohort study in which a test group recorded experiences relating to pain and discomfort, as well as effectiveness of the overall product concept.

 

c. Participants: 194 volunteers wore the insoles for 2 weeks. The volunteers were recruited based on reported symptoms categorising them as A) Bunion Suffers, N=49; B) Foot Fatigue Sufferers, N=50; C) Knee Pain Sufferers, N = 48; and D) Low Back pain sufferers, N = 48.

 

d. Methods: The volunteers were interviewed and responded to questions relating to their pain or discomfort levels.

 

e. Outcome measures: A simple question was used with the pre‐created responses set up as a 5 point analog scale to grade pain for data acquisition and grouping.

 

f. Results: Simple and elementary data collection and analysis (Mean Analysis and % shifts), was used to simply observe trends in the changes in reported pain experience.

 

g. Conclusions: 57.7% of the users rated their experience and satisfaction with the device as positive; 54.4% perceived a reduction in pain or discomfort when using the device; 55.5% reported an increase in their ability to walk with reduced pain or discomfort

 

The results shown occurred over a relatively short duration and we expect results of a higher magnitude had the product testing phase been extended to 6‐8 weeks. In particular issues related to alignment may be more significant over a longer period as opposed to issues relating only to soft tissue adjustment. Under this premise it would be hypothesised that the values shown for the knee in particular would be significantly different than that shown here.

 

These results are as expected in that the muscle activation, muscle firing and resultant exercise and strengthening produce a more stable foot structure. The presence of stronger more efficient foot muscles allows for increase management of energy within the foot and a reduction in the need for energy dissipation through harmful modes such as soft tissue destruction.

 

The reductions in pain are attributed to better localized energy management and reduction of energy dissipation through soft tissue destruction as well as improved pressure distribution over articulating surfaces resulting from improved musculoskeletal alignment.

 

*The Dynapro Insole was manufactured to the specification outlined in US Patent 5,404,659.

 

 

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