Article

Previous studies on physical activity after total knee arthroplasty
(TKA) concentrated mainly on a return to sports activities. OBJECTIVE: The
objectives of this study were to determine the habitual physical activity
behavior of people who had undergone TKA (TKA group) 1 to 5 years after surgery
and to examine to what extent they adhered to international guidelines for
health-enhancing physical activity. Additional aims were to compare younger (<65
years old) and older (>/= 65 years old) people as well as men and women in the
TKA group and to compare the results for the TKA group with those for a sex- and
age-matched normative population (normative group). DESIGN: This investigation
was a cohort study. METHODS: All people who had a primary TKA at 1 of 2
participating hospitals between 2002 and 2006 were sent the Short Questionnaire
to Assess Health-Enhancing Physical Activity at least 1 year after surgery.
RESULTS: The TKA group spent, on average, 1,347 minutes per week on physical
activity, most of which was light-intensity activity (780 minutes per week).
Participants younger than 65 years of age spent significantly more time on
physical activity than participants 65 years of age or older. There was no
significant difference between male and female participants. Compared with the
sex- and age-matched normative group, the TKA group spent significantly less time
on the total amount of physical activity per week and met the guidelines for
health-enhancing physical activity less often (55% versus 64%). LIMITATIONS: A
self-administered questionnaire was used to assess habitual physical activity,
and presurgery data on physical activity were not available. CONCLUSIONS: Almost
half of the TKA group did not meet the health-enhancing physical activity
guidelines, and the TKA group was not as physically active as the normative
group. People who have undergone TKA should be encouraged to be more physically
active.

Langue : ANGLAIS