Results published in Arthritis & Rheumatism, a journal of the American College of Rheumatology (ACR), show that long term use of the mobility shoes helped OA patients adapt their gait, or how they walk, which improved knee loading, even when the mobility shoes were no longer worn.
More than 27 million Americans over the age of 25 have some form of OA, which causes painful swelling and stiffness in the hand, foot, knee or hip joints, according to the ACR. A 2006 study by Hootman et al. published in Arthritis & Rheumatism projects that doctor-diagnosed arthritis will swell to 67 million U.S. adults by 2030. Furthermore, the Centers for Disease Control and Prevention (CDC) estimate that 16% of adults 45 years of age and older are burdened with symptomatic knee OA.
In their previous studies, Dr. Najia Shakoor and colleagues from Rush University Medical Center in Chicago, Illinois found that walking barefoot as well as with 'mobility shoes,' which are designed to mimic barefoot mechanics, was linked to reduced knee loading compared to when walking with regular footwear worn by participants. However, the authors thought the long term effects of the specialized footwear needed to be evaluated.
Dr. Najia Shakoor explains, "There is much interest in biomechanical interventions, such as orthotic inserts, knee braces, and footwear that aim to improve pain and delay OA progression by decreasing impact on joints. In the present study, we expand understanding of our earlier research by evaluating the impact of the mobility footwear on gait after six months of use." The team recruited 16 participants with knee OA, obtaining a baseline gait with participants walking in their own shoes, mobility shoes, and barefoot. Participants wore the mobility shoes for six hours each day for six days per week and patient gait was evaluated at 6, 12, and 24 weeks in all conditions.
Findings suggest that by 24 weeks participants wearing mobility footwear saw an 18% reduction in knee adduction moment (KAM)—the load on the inner or medial aspect of the knee when walking (where most people develop knee OA) compared to baseline knee loading in their own footwear. No significant difference in KAM was found between walking with mobility shoes and barefoot. Compared to baseline, analyses indicate an 11% and 10% reduction in KAM for OA patients walking in their own shoes and barefoot, respectively, suggesting the mobility shoes may have "re-trained" participant's gait.
"Patients with OA who use flat, flexible footwear may experience a significant reduction in knee loading with continued use," concludes Dr. Shakoor. "Our investigation provides evidence that footwear choice may be an important consideration in managing knee OA."
This study is published in Arthritis & Rheumatism. Media wishing to receive a PDF of this article may contact email@example.com.
Full citation: "Improvement in Knee Loading After Use of Specialized Footwear for Knee Osteoarthritis: Results Of A 6-Month Pilot Investigation." Najia Shakoor, Roy H. Lidtke, Markus A. Wimmer, Rachel A. Mikolaitis, Kharma C. Foucher, Laura E. Thorp, Louis F. Fogg and Joel A. Block. Arthritis & Rheumatism; Published Online: April 10, 2013 (DOI: 10.1002/art.37896).
URL Upon Publication: http://doi.wiley.com/10.1002/art.37896
About the Author: To arrange an interview with Dr. Najia Shakoor, please contact Deb Song with Rush University Medical Center at +1 312-942-0588 or firstname.lastname@example.org.About the Journal
Founded in 1807, John Wiley & Sons, Inc. (NYSE: JWa, JWb), has been a valued source of information and understanding for more than 200 years, helping people around the world meet their needs and fulfill their aspirations. Wiley and its acquired companies have published the works of more than 450 Nobel laureates in all categories: Literature, Economics, Physiology or Medicine, Physics, Chemistry, and Peace. Wiley's global headquarters are located in Hoboken, New Jersey, with operations in the U.S., Europe, Asia, Canada, and Australia. The Company's website can be accessed at http://www.wiley.com.
Dawn Peters | EurekAlert!
Staphylococcus aureus: A new mechanism involved in virulence and antibiotic resistance
23.03.2018 | Institut Pasteur
Scientists develop tiny tooth-mounted sensors that can track what you eat
22.03.2018 | Tufts University
Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.
The "traffic situation" in space is very tense: the Earth is currently being orbited not only by countless satellites but also by a large volume of space...
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
23.03.2018 | Event News
19.03.2018 | Event News
16.03.2018 | Event News
23.03.2018 | Materials Sciences
23.03.2018 | Agricultural and Forestry Science
23.03.2018 | Physics and Astronomy