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MANY STROKE VICTIMS HAVE 
DIFFICULTY WALKING DUE TO AN

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UNEVEN GAIT. 
PHYSICAL THERAPISTS EMPLOY

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VARIOUS TECHNIQUES THAT REQUIRE 
EXPENSIVE AND CUMBERSOME

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EQUIPMENT. 
A MECHANICAL ENGINEER WITH A

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PASSION FOR HELPING PEOPLE AND A 
DEDICATED PHYSICAL THERAPIST

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HAVE TEAMED UP TO DEVELOP A 
DEVICE THAT IS MUCH EASIER TO

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USE. 
IT IS THE GAIT-ENHANCING MOBILE

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SHOE, OR GEMS. 
>> THIS IS THE COMPUTER-ASSISTED

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REHABILITATION ENVIRONMENT, OR 
CAREN.

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IT'S HOUSED AT THE UNIVERSITY OF 
SOUTH FLORIDA WITH A PRICE TAG

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OF OVER A MILLION DOLLARS. 
ONLY A HANDFUL OF UNIVERSITIES

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UTILIZE THEM FOR RESEARCH. 
>> IT'S BASICALLY A SPLIT-BELT

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TREADMILL SO THE TWO TREADS CAN 
MOVE AT DIFFERENT SPEEDS,

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MOUNTED ON A SIX DEGREE OF 
FREEDOM BASE, SO WE CAN ROTATE

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IT, TWIST IT, MOVE IT UP AND 
DOWN AND ALL AROUND.

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IT HAS GOT A 180 DEGREE SCREEN 
SO YOU CAN PUT VIRTUAL REALITY

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ENVIRONMENTS IN FRONT OF YOU. 
IT HAS TEN CAMERAS THAT TRACK

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MARKERS THAT WE CAN PLACE IN 
VARIOUS PLACES ON THE BODY.

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WE USE IT TO UNDERSTAND HOW 
PEOPLE CAN WALK AND HOW WE CAN

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CHANGE THEIR GAIT PATTERNS. 
>> DR. KYLE REED IS A MECHANICAL

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ENGINEER WITH A PASSION TO HELP 
PEOPLE WHO NEED PHYSICAL

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THERAPY. 
HE DECIDED TO CREATE A NEW

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DEVICE THAT WOULD BE LESS 
EXPENSIVE AND MORE ACCESSIBLE TO

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PATIENTS WHO HAVE DIFFICULTY 
WALKING.

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>> I HAD SEEN A SPLIT-BELT 
TREADMILL, AND THAT WAS THE

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INSPIRATION FOR THE SHOE. 
THE POINT OF THE SHOE IS THAT IT

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LETS PEOPLE TRAIN IN THE REAL 
WORLD WHERE THEY ARE ACTUALLY

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GOING TO BE ACTIVE IN DOING THE 
MOTIONS THAT THEY ARE GOING TO

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BE WALKING. 
>> THE SHOE HE'S REFERRING TO IS

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THE GAIT ENHANCING MOBILE SHOE, 
OR GEMS.

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DR. KYLE TEAMED UP WITH PHYSICAL 
THERAPIST RESEARCHER HUN KIM AT

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USF SCHOOL OF PHYSICAL THERAPY 
AND REHABILITATION SCIENCES.

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THE GOAL -- TO DEVELOP THIS NEW 
DEVICE FOR STROKE SURVIVORS.

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>> INDIVIDUAL WITH STROKE, THEY 
TEND TO PUT MORE WEIGHT ON THEIR

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GOOD SIDE. 
THEN IF YOU DON'T USE THEIR

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AFFECTED SIDE, THEN YOU'RE GOING 
TO LOSE IT.

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>> THIS GEM SHOE IS SEVEN YEARS 
IN DEVELOPMENT.

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AFTER GOING THROUGH SEVERAL 
ITERATIONS, THEY CAME UP WITH A

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DEVICE READY FOR STUDY. 
THEY ARE NOW IN THE MIDDLE OF

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TESTING THE DEVICE ON STROKE 
SURVIVORS.

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DIANE IS THE FOURTH PATIENT TO 
BE TESTED.

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ALTHOUGH HER STROKE OCCURRED 
SEVEN YEARS AGO AND CAUSED

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EXTENSIVE DAMAGE, SHE WAS 
DETERMINED TO JOIN THE STUDY.

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>> IN THE BEGINNING, I WAS KIND 
OF SCARED, BUT I GOT USED TO THE

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SHOE, SO -- AND I THINK I DID 
PRETTY GOOD.

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AS I'VE BEEN USING IT, I NOTICED 
THERE WERE SOME CHANGES AT HOME.

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I'M ABLE TO WALK FASTER. 
AND MY KNEE MOVES AND MY TOES,

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I'VE NOTICED THEY ARE STARTING 
TO MOVE.

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AND THOSE ARE A COUPLE OF THE 
THINGS THAT DIDN'T HAPPEN

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BEFORE. 
>> DR. KIM HAS DIANE TAKE STEPS

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ALONG A GAIT-MEASURING WALKWAY 
THAT HAS SENSORS TO MEASURE HER

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WALKING PATTERN. 
>> WE ARE COMPARING THEIR

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SPATIAL-TEMPORAL VARIABLE. 
SPATIAL MEANS TRIED LENGTH AND

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HOW EACH TOE DEVIATED FROM THE 
LINEAR LINE.

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AND TEMPORAL VARIABLE MEANS HOW 
LONG THEY TAKE A STEP.

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WE PUT THE SHOE ON THE HEALTHY 
SIDE, WHICH SEEMS A LITTLE

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COUNTERINTUITIVE, BUT IT'S 
ACTUALLY WORKING ON THE

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IMPAIRED SIDE. 
IN SOME SENSE, IT MAKES THE

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HEALTHY LEG LESS STABLE. 
AND SO IT IS CAUSING THEM TO

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HAVE TO SPEND MORE TIME AND TRY 
HARDER TO WALK WITH THEIR

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IMPAIRED LEG. 
>> DR. REED'S DESIGN IS BASED ON

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THE SPIRAL. 
>> STANDING ON THE SHOE THERE'S

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BASICALLY THESE ASYMMETRIC 
WHEELS THAT AS YOU PUT DOWN

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WEIGHT, THERE IS AN ASYMMETRY OF 
WHERE THE AXLE FORCE IS AND

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WHERE THE GROUND REACTION FORCE 
IS.

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SO AS YOU PUSH DOWN ON IT, IT 
CAUSES THE WHEEL TO ROTATE.

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THAT ROTATION CAUSES THE SHOE TO 
GO BACKWARDS.

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SO IT'S MIMICKING A SPLIT-BELT 
TREADMILL IN THE SENSE THAT WHEN

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YOU STEP DOWN, IT'S CAUSING YOUR 
FOOT TO GO BACKWARDS.

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>> HE'S USUALLY PRESENT DURING 
EACH EVALUATION AND TRAINING.

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>> SOMETIMES DURING THE TRAINING 
SESSION, THERE IS A PIECE THAT

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BREAKS OR SOMETHING IS NOT QUITE 
WORKING RIGHT.

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SO I HAVE TO GO AND GRAB IT, FIX 
IT UP, AND KIND OF WORK ON IT.

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PUTTING IT ON THEM AND SEEING 
AND GETTING THEIR FEEDBACK IS

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IMMENSELY VALUABLE TO FIND OUT 
WHAT PARTS ARE NOT WORKING AS

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WELL SO WE CAN REDESIGN THOSE 
AND TO KEEP THE ONES THAT ARE

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WORKING VERY WELL. 
>> THESE CLINICAL TRIALS ARE

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BEING RUN WITH VERY STRICT 
PROTOCOLS.

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>> WE'RE LOOKING AT HER WALKING 
PATTERN, PROVIDE VERY MINIMAL

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GUIDANCE. 
AND ALSO, WE HAVE TO CHECK

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BLOOD PRESSURE AND RESPIRATORY 
RATE AS WELL AS HEART RATE.

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[ MUSIC ] 
>> SOMETIMES RESEARCH ENGINEERS,

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LIKE DR. REED, EXPERIMENT WITH 
THEIR DESIGNS.

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>> THERE IS A DEVICE WE CAME UP 
WITH CALLED THE KINETIC BOARD.

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IN SOME SENSE, IT'S A VERY LARGE 
VERSION OF THE GEMS.

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YOU ACTUALLY KIND OF LEAN BACK 
AND FORTH.

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AND THAT ROCKING BACK AND FORTH 
MOTION ENGAGES THE BACK WHEELS

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AND THEN THE FRONT WHEELS AND 
THAT ALLOWS YOU TO PROPEL

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YOURSELF FORWARD. 
WE'VE ACTUALLY FOUND THAT IT

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DEMONSTRATES THE PRINCIPLE OF 
THE GEMS.

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BECAUSE IT'S MUCH BIGGER, 
YOU CAN SEE IT MOVING.

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YOU CAN UNDERSTAND HOW THE 
PIECES ARE WORKING.

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ANOTHER SPINOFF WE HAD FROM IT 
WAS TAKING THAT SAME WHEEL SHAPE

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BUT PUTTING IT ON THE END OF A 
CRUTCH.

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SO IT'S NOT ENTIRE WHEEL SHAPE, 
BUT IT'S MORE OF A CURVE THAT IS

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ASYMMETRIC FROM FRONT TO BACK. 
THE SAME PRINCIPLE AS THE GEMS,

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WHEN YOU PUSH DOWN, BECAUSE IT'S 
ASYMMETRIC, IT CAUSES A FORWARD

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MOTION THAT IS GOING TO ASSIST 
YOU WHILE YOU'RE WALKING ON THE

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CRUTCH. 
WITH THE KINETICRUTITCH TIP,

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IT ALLOWS YOU TO PLANT DOWN. 
THEN ONCE YOU GET INTO THE

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MOTION, IT WILL PROPEL YOU 
FORWARD.

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>> WHATEVER THE CHALLENGE, 
DR. REED IS FOCUSED ON HELPING

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PEOPLE. 
>> I STARTED LEARNING MORE AND

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MORE ABOUT THE PHYSICAL THERAPY 
REALM AND JUST GOT A PASSION FOR

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IT THAT I WANTED TO MAKE THESE 
DEVICES MORE EFFECTIVE SO IT CAN

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HELP PEOPLE RESTORE THEIR 
MOTIONS THAT THEY HAVE.

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>> FOR TEST SUBJECT DIANE, SHE'S 
WELL ON HER WAY TO RESTORING

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SOME FUNCTIONALITY TO HER GAIT. 
>> NORMAL WALKING SHE IMPROVED

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ABOUT 20% IN THE WALKING SPEED. 
AND STEP LENGTH, ABOUT 10 TO 20

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PERCENT SO FAR. 
ALSO, WE CAN SEE MORE

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SYMMETRICAL GAIT PATTERN. 
WE EXPECTED TO A CERTAIN EXTENT,

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BUT THE OUTCOME WE ARE LOOKING 
AT IS BEYOND WHAT WE EXPECTED.

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THIS IS VERY PROMISING. 
>> WELL, I KNOW I'M NEVER GOING

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TO BE A HUNDRED PERCENT, BUT, 
YOU KNOW, I WANT TO GET AS CLOSE

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TO THAT HUNDRED PERCENT AS 
POSSIBLE.

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AND I THINK THE SHOE IS REALLY 
HELPING OUT.

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>> THE GOAL IS TO BE ABLE TO 
MASS-PRODUCE THE GEM SHOE AND

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MAKE IT AVAILABLE TO ALL 
PATIENTS IN THE NEAR FUTURE.

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>> I WOULD LOVE TO SEE THE GEMS 
BE AVAILABLE AT EITHER A RENTAL

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MODEL OR LOW COST FOR PURCHASE 
WHERE PEOPLE CAN GO INTO A

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CLINIC, LEARN HOW IT WORKS AND 
THEN COME BACK AND TAKE IT WITH

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THEM TO HOME. 
AND THEY COULD TRAIN EVERY

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SINGLE DAY FOR A MONTH, TWO 
MONTHS, HOWEVER LONG THEY NEED

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IT TO BE ABLE TO GET TO THE 
WALKING ABILITY THAT THEY WANT.

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>> QUEST FOR INNOVATION AT: