Abstract
Objective: To compare the habitual sedentary behavior (SB) and physical activity (PA) of older hip osteoarthritis patients before and after elective arthroplasty. Methods: SB, PA and joint-specific disability of 16 patients (68.9 ± 6.8 years) were assessed by accelerometry and questionnaires before and 9 months after arthroplasty. Results: All patients reported substantial postoperative improvements of their joint-related complaints (p ≤ 0.001). Accelerometry showed changes in neither daily SB (10–60 min sedentary bouts, p ≥ 0.569) nor in PA (steps, time in mild-to-vigorous activity and energy expenditure, p ≥ 0.255). Correlation analyses revealed that patients with severe preoperative disability showed a decrease in sedentary time, which was the opposite in patients with mild preoperative disability. Conclusion: SB and PA do not necessarily change after arthroplasty in older orthopedic patients. Even longer bouts of uninterrupted sitting, which are detrimental to health, do not decrease. Preoperative patient education is recommended to foster behavioral changes following elective arthroplasty.
Highlights
Osteoarthritis (OA) is an age-related and progressive disease, causing pain, loss of function and disability in those affected [1]
The criteria of ‘clinically meaningful changes’ (MDC90 ; i.e., minimal detectable change based on a confidence level of 90%) of the subscale scores were achieved by the majority of patients (Pain, Symptoms and ADL: 15/16 patients (MDC90 = 6.09; 6.55; 6.55); Sport/Recreation: 13/16 patients (MDC90 = 8.63); QoL: patients
We describe a sedentary behavior (SB) that differs from that described in other studies on OA patients, where it was shown that the patients spent most of their daily sedentary time in long bouts (≥30 min) [37]
Summary
Osteoarthritis (OA) is an age-related and progressive disease, causing pain, loss of function and disability in those affected [1]. THA followed by rehabilitation usually leads to complete freedom from pain, a significant improvement of patient health related quality of life, the restoration of joint function and significant improvements in physical functioning [5,6,7] In addition to these effects of surgery, most OA patients expect an improvement of their physical activity (PA) [8,9]. We expect a reduction in the uninterrupted sedentary bouts To test this hypothesis, four different time periods of uninterrupted sitting (i.e., 10-, 20-, 30- and 60 min) were assessed by accelerometry before and after arthroplasty in a group of older OA patients and analyzed for significant changes
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