HAZARDOUS HEELS: T E H

HAZARDOUS HEELS:
THE EFFECTS OF HIGH HEELED
SHOES ON GAIT
Taylor Schlotman & Mary Bailey
OUTLINE:
Why study high-heeled shoes?
• Shoe effects
• Previous Studies
• What to accomplish in our study
• Proposed Research
• Future Investigations
• Questions
•
THE HISTORY OF HIGH HEELS
The first heels showed
up around 3500 B.C.
in Egypt.
 In the 1700s, King
Louis ANY
XIV of France
made a law that only
VOLUNTEERS??
nobility could wear
heels, and none higher
than his.
 Heels have been a
fashion staple since
the 16th Centuryoriginally for men!

THE IMPORTANCE OF FASHION
The Global Fashion
Industry earns over a
TRILLION dollars
every year.
 The apparel and
textile industry
supplies over 700,000
jobs solely in
manufacturing.


Fashion industries
pioneered workers’
rights and ensuring
safe working
conditions in the
1920s.
BEAUTY IS PAIN
Short Term
Falling
 Joint Pain
 Blisters, corns,
calluses
 Stress Fractures
 Toe nail fungus
 Ingrown toe nails

Long Term
Bunions
 Hammer Toes
 “Pump Bump”
 Shortened Tendon &
Muscle Fibers
 Osteoarthritis
 Chronic Pain

WHY BOTHER?

“It’s a natural
feminine instinct to
accessorize.” –
Christian Louboutin
Heels make you
appear slimmer, with
more muscle tone.
 Heels give the illusion
of longer, leaner legs.
 They increase the
wearer’s confidence.
 They alter your
posture, helping keep
your head high.

PREVIOUS STUDIES
Knee pressure increased 26%
 Pressure on forefoot increases 76% with 3 inch
heels
 Contracted calf muscles may shorten and tighten
 Hips and spine are forced out of alignment (push
center of mass forward- 2 inch pushes forward 20
to 35 deg)
 Achilles Tendon tightens and shortens, and can
possibly rupture
 Your body weight is forced onto the ball of your
foot (90% of weight falls on the ball, only 10 on
the heel, while normally it is 60/40)

PREVIOUS STUDIES: SUMMARY
The higher the heel, the higher the damage.
 Overall, studies say to leave the heels behind.

GOALS
Decrease pain and injury
 Increase longevity of wear
 Increase stability in walking/standing
 Create new heel that keeps all the benefits
(confidence, muscle tone, etc.), yet is less harmful

OUR RESEARCH
Simulate the effects of walking in heels.
 Study the 6 determinants of gait with and
without a high heel.
 Use force plate and kinematic data from study to
aid in design of new heel.
 Compare collected data to simulated data for
better understanding.

SIMULATIONS
In OpenSim, a comparison of a 3-inch heel to
barefoot walking was created.
 Moment Arm, muscle-tendon length, and total
force data was compared for the gastrocnemius.
 Using this data, the design for the new shoe was
created.

OUR STUDY
Components
Timeline
30 People: ages 20-40,
10 from each age
group
 In each group, 5
experienced wearers,
5 non-experienced.
6 Months:
2 months: design & build
new heel, simulations,
gather people
2 months: testing- without
heel, with regular heel,
with our heel
2 months: review data and
results, alter any
necessary design
components


NEW HEEL DESIGN
Added hinge in the heel
 Hinge has a catch so it can only move a few
degrees
 Hidden in a platform, a small spring to help in
toe-off
 Stability is increased, while decreasing pain
caused by the changed gait from wearing heels
 Even though these changes in the shoe are made,
you still get the benefits of the heel

NEW HEEL DESIGN
SHOE DESIGN
FUTURE INVESTIGATIONS
Heel Style
Different heel styles
are harder/easier to
walk in and cause
more/less pain.
 Could study the
differences in these
styles to learn which
are best.

Effects of Stairs/Hills
Hills and stairs are
especially harder on
gait in heels.
 Could study these
exact effects to learn
what is happening in
order to fix it.

QUESTIONS?
“Women's most desired treasures are the
ones they can wear.”
–TIME Magazine
REFERENCES

http://www.randomhistory.com/1-50/036heels.html

http://www.39thandbroadway.com/importance-fashion-industry/

“In His Shoes” Marie Claire, March 2012 V.19 issue 3, Hearst Magazines, pg. 162-166

http://www.riversideonline.com/health_reference/Articles/WO00114.cfm

http://www.dconheels.com/2011/04/09/put-your-feet-in-good-hands/high-heels-2/

http://www.niftychristian.com/wp-content/uploads/2010/07/high_heels1.jpg




“Walking on High Heels Changes Muscle Activity and the Dynamics of Human Walking Significantly.”
Simonsen EB, Svendsen MB, Norreslet A, Baldvinsson HK, Heilskov-Hansen T, Larsen PK, Alkjær T, Henriksen M,
Journal ofApplied Biomechanics, (August 26, 2011)
“Computational simulation of high heeled shoe fitting and walking.” Jason Tak-Man Cheung, Jia Yu & Ming
Zhang, Footwear Science Special Issue: Proceedings of the Ninth Footwear Biomechanics Symposium, Volume 1,
Supplement 1, 2009, Pages 53-55, (July 02, 2009)
“The Effect of Walking in High- and Low-Heeled Shoes on Erector Spinae Activity and Pelvis Kinematics
During Gait” Mika, Anna, Lukasz Oleksy, Piotr Mika, Anna Marchewka, and Brian Clark. American Journal of
Physical Medicine & Rehabilitation. 10.1097 (2012): n. page. Web. 4 Mar. 2012.
<http://journals.lww.com/ajpmr/Abstract/publishahead/The_Effect_of_Walking_in_High__and_Low_Heeled.99598.asp&
xgt;>.
“Biomechanical Effects of Wearing High-heeled Shoes” Lee, Chang-Min, Eun-Hee Jeong, and Andris Freivals.
International Journal of Industrial Ergonomics. 28.6 (2001): 321-326. Web. 4 Mar. 2012.
<http://www.sciencedirect.com/science/article/pii/S0169814101000385>.
IMAGE & VIDEO CREDITS

http://fashion-musings.onsugar.com/crazy-shoes-16622147

http://fashiondesignerbusiness.com/lady-gaga-shoes-lady-gaga-heels/lady-gaga-shoes-lady-gaga-heels

http://www.huffingtonpost.com/2009/11/11/lady-gaga-dances-in-alexa_n_353845.html

http://chanceplus1.com/ellen-kardashian-says-that-bruce-jenner-is-a-cross-dresser-likes-lacy-bras-high-heels/

http://www.joint-pain-expert.net/bunion.html

http://www.youtube.com/watch?v=Y18iHbl-Ha8

http://epicself.com/move/treat-your-feet/

http://www.time.com/time/magazine/article/0,9171,1731871,00.html

http://dolcesgabbana.webs.com/louboutinheels.html&docid=xQl6xyiyWVTPKM&imgurl=http://i2.iofferphoto.com/img/item/450/759/46/o_8.jpg&w=580&h=580&e
i=l1aDT76vGYeQ9QTb_YXtBw&zoom=1&iact=rc&dur=2876&sig=114170141333486068029&page=1&tbnh=138&tbnw
=138&start=0&ndsp=24&ved=1t:429,r:0,s:0,i:110&tx=39&ty=42