Article

The initiation, progression, and severity of knee osteoarthritis (OA) have been
associated with decreased muscular strength and alterations in joint
biomechanics. Chronic OA pain may lead to anxiety, depression, fear of movement,
and poor psychological outlook. The fear of movement may prevent participation in
exercise and social events, which could lead to further physical and social
isolation. Resistance exercise (RX) has been shown to be an effective
intervention both for decreasing pain and improving physical function and
self-efficacy. RX may restore muscle strength and joint mechanics while improving
physical function. RX also may normalize muscle firing patterns and joint
biomechanics, leading to reductions in joint pain and cartilage degradation.
These physical adaptations could lead to improved self-efficacy and decreased
anxiety and depression. RX can be prescribed and performed by patients across the
spectrum of OA severity. When designing and implementing an RX program for a
patient with knee OA, one should consider both the degree of OA severity and the
level of pain. RX, either in the home or at a fitness facility, is an important
component of a comprehensive regimen designed to offset the physical and
psychological limitations associated with knee OA. Unique considerations for this
population include (1) monitoring pain during and after exercise, (2) providing
days of rest when disease flares occur, and (3) infusing variety into the
exercise regimen to encourage adherence.
CI - Copyright (c) 2012 American Academy of Physical Medicine and Rehabilitation.
Published by Elsevier Inc. All rights reserved.

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