Article

Hip osteoarthritis (OA) compromises quality of life for many
individuals. This study quantified deficits in functional capacity for use in
rehabilitation goal setting by combining assessments of muscle strength, function
and physical activity in patients with hip OA and healthy adults. METHOD:
Twenty-six patients with end-stage hip OA and 18 healthy adults participated.
Isometric muscle strength around the hip and knee was measured. Function was
assessed using stair climbing, five-time-sit-to-stand, timed-up-and-go and
6-minute walk tests. The UCLA activity rating scale assessed physical activity.
Analyses of covariance (ANCOVA) were used to assess differences between groups.
RESULTS: Patients had 30% less knee extensor (p < 0.001), 38% less knee flexor (p
< 0.001), 10% less hip flexor (p = 0.47), 23% less hip extensor (p = 0.24) and
17% less hip abductor strength (p = 0.23) than healthy adults. Hip adductor
strength was equal between groups (p = 0.93). Patients were 50% slower on the
stair climbing test (p = 0.001), 34% slower on the timed-up-and-go test (p =
0.004), 34% slower on the five-time-sit-to-stand test (p = 0.001), and walked 28%
less during the 6-min walk test (p < 0.001). Patients were less physically active
(p = 0.001). CONCLUSIONS: Patients had deficits in muscle strength, function and
physical activity compared to healthy adults. Quantifying these deficits provides
benchmarks for improvement during rehabilitation. IMPLICATIONS FOR
REHABILITATION: Hip osteoarthritis (OA) affects up to 28% of adults over the age
of 65 and many individuals report functional and activity limitations directly
related to their arthritic condition, posing a risk for future morbidity Total
hip arthroplasty (THA) is the treatment of choice for decreasing pain and
improving function, however, some individuals suffering from end-stage hip OA are
not candidates for THA, and effective rehabilitation interventions to improve
physical function are crucial Establishing estimates of the deficits in muscle
strength, physical function and physical activity in people with and without hip OA can aid rehabilitation professionals in their goal setting and intervention
planning Rehabilitation interventions should not only consist of muscle
strengthening and functional training, but interventions to improve physical
activity levels are required to improve overall physical functioning and to
decrease risks for additional health complications.

Langue : ANGLAIS