Department of Orthopedics and Tumor Orthopedics, Muenster University Hospital, Muenster, 48149, Germany.
Department of Orthopedics and Traumatology, St. Josef-Stift Sendenhorst, Sendenhorst, 48324, Germany.
Clin Interv Aging. 2021 Mar 4;16:403-413. doi: 10.2147/CIA.S295160. eCollection 2021.
Osteoarthritis (OA) is a frequent cause of pain and disability, affecting half of the world's population aged 65 years or older. Due to experienced pain and limitations, OA patients generally spend most of their waking hours sedentary and fail to adhere to physical activity (PA) recommendations. As a result of living together with OA patients, their partners might adopt a sedentary lifestyle. This study investigates the change in habitual PA and sedentary behavior (SB) in patients and their partners one year after the patients' total joint replacement (arthroplasty) and inpatient rehabilitation.
This is a follow-up of a prospective cohort study including 24 older couples (69.3±7.8 years, gender ratio 11:13) consisting of OA patients (17 hip OA, 7 knee OA) and their partners. The participants' habitual PA and SB were assessed by means of synchronous accelerometry (16h per day, 4-7 days) and additional self-report.
Although the partners (6300 steps per day) were significantly more active than the patients (4800 steps per day) before arthroplasty, their lifestyle was still classified "low active". Irrespective of the method used, the PA and SB parameters of patients and partners were significantly correlated before arthroplasty (accelerometry: r≥0.333, p≤0.001; self-report: r≥0.569, p≤0.004). Following the patients' arthroplasty, no improvement in PA or SB was observed either in the patients or their partners. A detailed evaluation of accelerometric data on hourly basis revealed no change in behavior for both groups. Furthermore, their everyday activities remained correlated (accelerometry: r≥0.418, p≤0.001; questionnaire: r≥0.554, p≤0.005).
One year post-arthroplasty and inpatient rehabilitation neither the OA patients nor their partners had changed their PA or SB. Their everyday physical activity was still strongly intertwined. Further research is needed to determine why behavior change does not occur even though the prerequisites are in place.
骨关节炎（OA）是疼痛和残疾的常见原因，影响了世界上一半以上的 65 岁或以上人口。由于经历疼痛和活动受限，OA 患者通常大部分时间都处于久坐状态，无法遵守身体活动（PA）建议。由于与 OA 患者共同生活，他们的伴侣可能会采取久坐的生活方式。本研究调查了患者及其伴侣在接受全关节置换术（关节置换术）和住院康复治疗一年后，习惯性 PA 和久坐行为（SB）的变化。
这是一项前瞻性队列研究的随访，包括 24 对年龄较大的夫妇（69.3±7.8 岁，性别比 11:13），其中包括 OA 患者（17 例髋关节 OA，7 例膝关节 OA）及其伴侣。通过同步加速度计（每天 16 小时，4-7 天）和附加自我报告评估参与者的习惯性 PA 和 SB。
尽管在关节置换术之前，伴侣（每天约 6300 步）的活动量明显高于患者（每天约 4800 步），但他们的生活方式仍被归类为“低活跃”。无论使用哪种方法，患者和伴侣的 PA 和 SB 参数在关节置换术之前都有显著相关性（加速度计：r≥0.333，p≤0.001；自我报告：r≥0.569，p≤0.004）。在患者关节置换术后，患者或其伴侣的 PA 或 SB 均未观察到改善。对两组每小时的加速度计数据进行详细评估，发现两组的行为均未发生变化。此外，他们的日常活动仍然相关（加速度计：r≥0.418，p≤0.001；问卷：r≥0.554，p≤0.005）。
关节置换术和住院康复治疗一年后，OA 患者及其伴侣的 PA 或 SB 均未发生变化。他们的日常身体活动仍然紧密交织在一起。需要进一步研究确定为什么即使有了改变的条件，行为也没有发生变化。
