Several individual RCTs demonstrated clinical ly important improvements in pain and disability with aerobic exercise .
Other PT interventions demonstrated no sustained benefit .
Individual RCTs showed similar benefits with aerobic , aquatic , and strengthening exercise .
Adverse events were uncommon and did not deter participants from continuing treatment .
Low-strength evidence suggested that only a few PT interventions were effective .
BACKGROUND Osteoarthritis is a leading cause of disability .
Nonsurgical treatment is a key first step .
PURPOSE Systematic literature review of physical therapy ( PT ) interventions for community-dwelling adults with knee osteoarthritis .
One-year followup of patients with osteoarthritis of the knee who participated in a program of supervised fitness walking and supportive patient education.
OBJECTIVE To determine whether gains in functioning observed immediately following participation in an 8-week program of supervised fitness walking for patients with knee osteoarthritis were sustained at 1-year followup . METHODS Twenty-nine ( 61.1 % ) of 47 original intervention program patients and 23 ( 51.1 % ) of 45 original control patients were interviewed by telephone at 1-year followup . Patients completed the Arthritis Impact Measurement Scales physical activity , arthritis impact , pain , medication use , and general health perceptions subscales , as well as a separate visual analog pain scale and measures of perceived self-efficacy to cope with arthritis pain and other symptoms . RESULTS Adherence to walking was low , and there were no statistically significant differences between intervention and control patients at one year . CONCLUSIONS The failure of intervention patients to maintain regular walking result ed in loss of functional benefits that were observed at 8 weeks in the original study . Long-term adherence to walking is critical to maintenance of initial gains in functional outcomes
Several individual RCTs demonstrated clinical ly important improvements in pain and disability with aerobic exercise .
Other PT interventions demonstrated no sustained benefit .
Individual RCTs showed similar benefits with aerobic , aquatic , and strengthening exercise .
Adverse events were uncommon and did not deter participants from continuing treatment .
Low-strength evidence suggested that only a few PT interventions were effective .
BACKGROUND Osteoarthritis is a leading cause of disability .
Nonsurgical treatment is a key first step .
PURPOSE Systematic literature review of physical therapy ( PT ) interventions for community-dwelling adults with knee osteoarthritis .