SLIDE 1
Aim
- Develop a fully textile garment
with dry electrodes (alternative to hydrogel electrodes)
- Screen printed, heat transfer
A Functional Electrical Stimulation (F (FES) Garment Professor - - PowerPoint PPT Presentation
A Functional Electrical Stimulation (F (FES) Garment Professor - - PowerPoint PPT Presentation
A Functional Electrical Stimulation (F (FES) Garment Professor David Tyler, Rebecca Bennett, Chloe McDonnell, Jane Wood Manchester Fashion Institute Aim Develop a fully textile garment with dry electrodes (alternative to hydrogel
SLIDE 2
SLIDE 3
Purpose:
Workin ing wit ith patie ients wit ith spin inal cord in inju jury ry
- After injury, increased risk of low bone
mineral density (osteoporosis)
- Increased risk of fracture
- Lengthy hospital stays – possible increase
in mortality risk
SLIDE 4
Purpose:
Workin ing wit ith patie ients wit ith spin inal cord in inju jury ry
- Bone adaptation achieved
through weight bearing exercise
- Functional electrical stimulation
(FES) – controlled movement in people with paralysis
- Electrodes target muscle fibres
- Controlled movements
SLIDE 5
Purpose:
Workin ing wit ith patie ients wit ith spin inal cord in inju jury ry
- Electrodes currently ‘strapped’ to
patient
- Is there a way of incorporating these
into a garment?
- Textile electrodes have extended
lifetime vs hydrogel
SLIDE 6
Materials
- Screen printed electrode
- Synthetic / elastane
- Zip
- Velcro
- Metal press stud
SLIDE 7
Methods
- Tests on able-bodied participant to
measure torque and pain threshold
- Position of electrodes based on standard
location used by practitioners.
- Tested using hydrogel electrodes.
- Repeated using dry electrodes (screen
printed and heat transferred onto garment)
SLIDE 8
Methods
- 30Hz square wave pulses at 10mA
intervals generated for 2 seconds
- Each step increased by 10mA up
to 60mA
- Torque measurement taken at
each step.
- Results compared
SLIDE 9
Findings
- Velcro provided easiest donning / doffing solution
- Compression had no beneficial effect on resistance of electrode, though
comfort was noted by user.
- Ease of electrode positioning
SLIDE 10
Findings
- Dry electrode was activated at 10mA higher than the hydrogel
electrode.
- Equal results to 60mA
- Repeats at 60mA resulted in large jump in torque
SLIDE 11
Conclusion
- ‘Garment’ design is suitable - facilitates easy donning/doffing -
adequate compression
- Screen-printed electrodes - Jump in torque for 60mA unclear and
remains to be investigated
- Future work will examine dry and wet state, extension and recovery of
electrodes
SLIDE 12
The Future
- Explore potential wider physiotherapy applications
- Home use?
- Activity stimulation for those less mobile
- Possible incorporation into garments to apply to different muscle
groups
SLIDE 13
Questions?
SLIDE 14