New research out of the University of Delaware (UD) indicates that patients who have undergone total knee arthroplasty (TKA) need to relearn the proper techniques of moving from a sitting to standing position. The study was originally published in Physical Therapy (May 1, 2008), the scientific journal of the American Physical Therapy Association (APTA).
"Because most patients with knee replacement have lived with debilitating pain for years, they work around the pain by adopting different strategies to avoid using their weakened quadriceps femoris muscle (muscle in front of the thigh) when going from a sit-to-a-stand position," says Lynn Snyder-Mackler, PT, ScD, SCS, ATC, FAPTA, distinguished alumni professor in UD's Department of Physical Therapy and a certified sports physical therapist and athletic trainer who was one of the study investigators.
The study, which evaluated 12 patients three months and one year following total knee replacement surgery, showed that the patients relied on a larger hip extensor movement (leaning far forward to rise) to perform the sit-to-stand task. "What is interesting about the study," notes Snyder-Mackler, "is that it shows that, even following surgery, this strategy continued as patients' muscle strength improved." The strategy, although dangerous because of the risk of falling, had become second-nature to them, observed Snyder-Mackler. "Simply put, it was a learned movement pattern that could not be resolved without retraining by a physical therapist, usually beginning 4-6 weeks after surgery when weight can be put equally on both legs," she concluded.
Snyder-Mackler found that, in order to get up from a chair, patients would bend forward at the hips and use the hips to stand up, moving the center of gravity forward. This makes the task easier, but is less stable and could lead to falls. The retraining would involve teaching the patient to rise up from the chair without bending forward, most likely by allowing the use of the arms to help push up in order to develop the correct pattern and eventually moving to performing the task without the use of the arms. "Because the incorrect movement pattern could potentially contribute to the development of future knee osteoarthritis, retraining may be an important prevention strategy," concluded Snyder-Mackler.
Physical therapists are health care professionals who diagnose and manage individuals of all ages who have medical problems or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. Physical therapists examine each individual and develop a plan of care using treatment techniques to promote the ability to move, reduce pain, restore function, and prevent disability. Physical therapists also work with individuals to prevent the loss of mobility by developing fitness- and wellness-oriented programs for healthier and more active lifestyles.
The American Physical Therapy Association (www.apta.org) is a national organization representing physical therapists, physical therapist assistants, and students nationwide. Its goal is to foster advancements in physical therapist education, practice, and research. Consumers can access "Find a PT" to find a physical therapist in their area, as well as physical therapy news and information at www.apta.org/consumer.
Lydia Voles | EurekAlert!
New nanomedicine slips through the cracks
24.04.2019 | University of Tokyo
Sugar entering the brain during septic shock causes memory loss
23.04.2019 | Rensselaer Polytechnic Institute
For the first time, physicists at the University of Basel have succeeded in measuring the magnetic properties of atomically thin van der Waals materials on the nanoscale. They used diamond quantum sensors to determine the strength of the magnetization of individual atomic layers of the material chromium triiodide. In addition, they found a long-sought explanation for the unusual magnetic properties of the material. The journal Science has published the findings.
The use of atomically thin, two-dimensional van der Waals materials promises innovations in numerous fields in science and technology. Scientists around the...
Flexible, organic and printed electronics conquer everyday life. The forecasts for growth promise increasing markets and opportunities for the industry. In Europe, top institutions and companies are engaged in research and further development of these technologies for tomorrow's markets and applications. However, access by SMEs is difficult. The European project SmartEEs - Smart Emerging Electronics Servicing works on the establishment of a European innovation network, which supports both the access to competences as well as the support of the enterprises with the assumption of innovations and the progress up to the commercialization.
It surrounds us and almost unconsciously accompanies us through everyday life - printed electronics. It starts with smart labels or RFID tags in clothing, we...
The human eye is particularly sensitive to green, but less sensitive to blue and red. Chemists led by Hubert Huppertz at the University of Innsbruck have now developed a new red phosphor whose light is well perceived by the eye. This increases the light yield of white LEDs by around one sixth, which can significantly improve the energy efficiency of lighting systems.
Light emitting diodes or LEDs are only able to produce light of a certain colour. However, white light can be created using different colour mixing processes.
Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.
Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring...
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
17.04.2019 | Event News
15.04.2019 | Event News
09.04.2019 | Event News
26.04.2019 | Physics and Astronomy
26.04.2019 | Life Sciences
26.04.2019 | Physics and Astronomy