Navigation Links
Artificial foot recycles energy for easier walking
Date:2/16/2010

ANN ARBOR, Mich.---An artificial foot that recycles energy otherwise wasted in between steps could make it easier for amputees to walk, its developers say.

"For amputees, what they experience when they're trying to walk normally is what I would experience if I were carrying an extra 30 pounds," said Art Kuo, professor in the University of Michigan departments of Biomedical Engineering and Mechanical Engineering.

Compared with conventional prosthetic feet, the new prototype device significantly cuts the energy spent per step.

A paper about the device is published in the Feb. 17 edition of in the journal PLoS ONE. The foot was created by Kuo and Steve Collins, who was then a U-M graduate student. Now Collins is an associate research fellow at Delft University of Technology in the Netherlands.

The human walking gait naturally wastes energy as each foot collides with the ground in between steps.

A typical prosthesis doesn't reproduce the force a living ankle exerts to push off of the ground. As a result, test subjects spent 23 percent more energy walking with a conventional prosthetic foot, compared with walking naturally. To test how stepping with their device compared with normal walking, the engineers conducted their experiments with non-amputees wearing a rigid boot and prosthetic simulator.

In their energy-recycling foot, the engineers put the wasted walking energy to work enhancing the power of ankle push-off. The foot naturally captures the dissipated energy. A microcontroller tells the foot to return the energy to the system at precisely the right time.

Based on metabolic rate measurements, the test subjects spent 14 percent more energy walking in energy-recycling artificial foot than they did walking naturally. That's a significant decrease from the 23 percent more energy they used in the conventional prosthetic foot, Kuo says.

"We know there's an energy penalty in using an a
'/>"/>

Contact: Nicole Casal Moore
ncmoore@umich.edu
734-647-1838
University of Michigan
Source:Eurekalert

Page: 1 2

Related medicine news :

1. New Herbal Water Creating Taste Sensation: Ayalas Herbal Water Has No Calories, No Preservatives and No Artificial Additives. Just All the Natural Benefits of Herbs!
2. Brain measurements could lead to better devices to move injured or artificial limbs
3. Wearable Artificial Kidney Passes Test
4. Artificial skin system can heal wounds
5. Significantly higher success rates with artificial insemination
6. Artificial sweeteners linked to weight gain
7. Does artificial intelligence help clinicians to recognize atrophic gastritis with thyroid disease?
8. Rodent study finds artificial butter chemical harmful to lungs
9. Bay State Restaurants Still Using Artificial Trans Fat Despite Health Risks
10. Global Cervical Artificial Disc Market to Hit $1 Billion by 2012
11. Genetic test improves artificial fertilization
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/12/2014)... ON Canada (PRWEB) July 12, 2014 Sean Francis, ... for throwing out special challenges to his clients. He’s also known ... Club. He recently found a way to combine the two and ... has raised $2,000 for the Boys and Girls Club. , The ... Program, which started on June 23rd. Francis sent out emails and ...
(Date:7/12/2014)... (PRWEB) July 12, 2014 As DePuy ... forward in U.S. courts, Bernstein Liebhard LLP notes the ... ion levels to the failure of metal-on-metal hip replacements. ... of The Journal of Bone & Joint Surgery, looked ... Articular Surface Replacement prostheses at least twelve months earlier. ...
(Date:7/12/2014)... Columbus, OH (PRWEB) July 12, 2014 Wright ... lawsuit against DePuy Orthopedics , Inc., a subsidiary of Johnson ... that he suffers chronic pain after receiving a metal-on-metal DePuy ... years later to remove the artificial hip implant. The DePuy ... District Court, Northern District of Texas (Case No. 3:14-cv-2427) where ...
(Date:7/12/2014)... York, NY (PRWEB) July 12, 2014 As ... (the National Institute of Standards and Technology), the June 25th, ... the electronic discovery world. It was also ... finally in, depending on whether it was seen from an ... But this much is fact, there is now precedent which ...
(Date:7/12/2014)... recent article released by Seattle's well known plastic surgeon, Dr. ... cosmetic surgical procedures in summer months . , ... to enliven the rainy Pacific Northwest, many people are turning ... work out as much during the winter as they had ... people eager to look their best for their summer vacations, ...
Breaking Medicine News(10 mins):Health News:Kawartha Lakes Fit Body Boot Camp’s Successful Fat Loss Challenge Results in $2,000 to Boys and Girls Club 2Health News:Kawartha Lakes Fit Body Boot Camp’s Successful Fat Loss Challenge Results in $2,000 to Boys and Girls Club 3Health News:DePuy Pinnacle Hip Lawsuit News: Bernstein Liebhard LLP Notes Release of New Study Tying Elevated Metal Ions to Metal-on-Metal Hip Failure 2Health News:DePuy Pinnacle Hip Lawsuit News: Bernstein Liebhard LLP Notes Release of New Study Tying Elevated Metal Ions to Metal-on-Metal Hip Failure 3Health News:DePuy Pinnacle Hip Lawsuit News: Bernstein Liebhard LLP Notes Release of New Study Tying Elevated Metal Ions to Metal-on-Metal Hip Failure 4Health News:DePuy Pinnacle Hip Lawsuit Filed By Wright & Schulte LLC On Behalf of Ohio Man Who Required Revision Surgery Purportedly From Defective Hip Implant 2Health News:DePuy Pinnacle Hip Lawsuit Filed By Wright & Schulte LLC On Behalf of Ohio Man Who Required Revision Surgery Purportedly From Defective Hip Implant 3Health News:DePuy Pinnacle Hip Lawsuit Filed By Wright & Schulte LLC On Behalf of Ohio Man Who Required Revision Surgery Purportedly From Defective Hip Implant 4Health News:DePuy Pinnacle Hip Lawsuit Filed By Wright & Schulte LLC On Behalf of Ohio Man Who Required Revision Surgery Purportedly From Defective Hip Implant 5Health News:Mobile Device Forensics Guidelines Play Key Role in Supreme Court’s Smartphone Evidence Warrant Decision 2Health News:Mobile Device Forensics Guidelines Play Key Role in Supreme Court’s Smartphone Evidence Warrant Decision 3Health News:Mobile Device Forensics Guidelines Play Key Role in Supreme Court’s Smartphone Evidence Warrant Decision 4Health News:Mobile Device Forensics Guidelines Play Key Role in Supreme Court’s Smartphone Evidence Warrant Decision 5Health News:Best Summer Cosmetic Surgeries Revealed in Article By Seattle Plastic Surgeon 2
... Explains Connection Between Gum Disease and Diabetes, Heart ... People can,avoid much more than cavities with ... Reports. Preventing gum disease is gaining new urgency ... disease,stroke, and pneumonia., Gum disease (periodontitis) can ...
... April 7, 2008 Telik, Inc.,(Nasdaq: TELK ) announced ... will be presented at the 99th annual,meeting of the American ... Details of the presentations are as follows:, -- ... Targeting Vascular Endothelial Growth Factor Receptor 2; Sunday, ...
... Her Support to Campaign to Help Provide Tetanus Vaccines ... of Moms and Babies in Developing Countries, CINCINNATI, ... and mothers for four decades and today, the world,s ... its multi-year,multi-million dollar commitment to UNICEF to provide life-saving ...
... 2008 DARA,BioSciences(TM) (Nasdaq: DARA ) announced ... for the fiscal year ended December,31, 2007, as ... filed on March,31, 2008, contained a going concern ... announcement be made regarding the,receipt of an audit ...
... Technologies, Inc. (Nasdaq: VNUS ), a leading provider ... vascular,disease, announced today that it plans to report its ... after the close of market on April,21., VNUS ... p.m. PT,/ 5:00 p.m. ET on April 21. This ...
... Journey Lite of,Thousand Oaks, CA, today announced that in ... patients, it is reducing its cash price for,patients paying ... June 30, 2008, the cash charge for Lap-Band(R) surgery ... $13,499., "Everyone is being effected by declining employment ...
Cached Medicine News:Health News:Consumer Reports: If Your Gums Could Speak 2Health News:Telik Announces Preclinical Presentations at AACR Annual Meeting 2Health News:Actress/Producer Salma Hayek Launches The Pampers(R) 'One Pack = One Vaccine' Program to Benefit UNICEF 2Health News:Actress/Producer Salma Hayek Launches The Pampers(R) 'One Pack = One Vaccine' Program to Benefit UNICEF 3Health News:Actress/Producer Salma Hayek Launches The Pampers(R) 'One Pack = One Vaccine' Program to Benefit UNICEF 4Health News:Actress/Producer Salma Hayek Launches The Pampers(R) 'One Pack = One Vaccine' Program to Benefit UNICEF 5Health News:DARA Announces Information in Compliance with NASDAQ Rules 2Health News:VNUS Medical Technologies to Report First-Quarter 2008 Results and Webcast Teleconference on April 21 2Health News:Journey Lite of Thousand Oaks Announces Special Spring Price Discount In Response to Effects of Softening Economy on Patients' Pocketbooks 2
(Date:7/10/2014)... 2014   Ventana Medical Systems, Inc.  (Ventana), a ... entered into an agreement with Merck KGaA, Darmstadt, ... in the United States and ... KGaA,s biopharmaceutical division on the development and commercialization of ... Ventana,s proprietary diagnostic assays. In alignment with Merck KGaA,s ...
(Date:1/15/2014)... Sono-Tek Corporation (OTC BB: SOTK) today announced sales of  ... to sales of $2,202,000 for the prior year period, an ... also shown growth over the preceding quarter,s sales, continuing a ... year. Markets that experienced sales increases over the prior year ...
(Date:1/15/2014)... Foundation today announced it has established a relief fund ... weather that has gripped much of the nation. AARP and ... to support these emergency relief efforts AARP and AARP Foundation ... up to $500,000 in aid. The matching program will be ...
Breaking Medicine Technology:Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 2Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 3Sono-Tek Announces Third Quarter Results 2Sono-Tek Announces Third Quarter Results 3Sono-Tek Announces Third Quarter Results 4AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 2AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 3
... to over 2,000 medical clinics nation wide, ... in mind, ChartingPlus relies heavily on a ... to improve documentation quality and increase productivity ... medical content is specific to your medical ...
... EncounterPRO Electronic Health Record ... System (WfMS) Specialties that ... and Immunology, Cardiology, Dermatology, ... Medicine, Neurology, Neurosurgery, Obstetrics ...
MediNotes e is an EMR design which utilizes a "tab concept for navigation. MediNotes e can display multiple patients, encounter notes, workflow items, patient flow, messages, alerts, and more, all in...
... Medical Record Software Interface ... Interface with programs, populates ... custom reports. Accumedics Electronic ... is Microsoft compatible allowing ...
Medicine Products: