Department of Clinical Therapies, University of Limerick, Limerick, Ireland.
Arthritis Care Res (Hoboken). 2013 Jun;65(6):888-95. doi: 10.1002/acr.21914.
Measuring physical activity in people with rheumatoid arthritis (RA) is of great importance in light of the increased mortality in this population due to cardiovascular disease. Validation of activity monitors in specific populations is recommended to ensure the accuracy of physical activity measurement. Thus, the purpose of this study was to determine the validity of the SenseWear Pro3 Armband (SWA) as a measure of physical activity during activities of daily living (ADL) in people with RA.
Fourteen subjects (8 men and 6 women) with a diagnosis of RA were recruited from rheumatology clinics at the Mid-Western Regional Hospitals, Limerick, Ireland. Participants undertook a series of ADL of varying intensities. The SWA was compared to the criterion measures of the Oxycon Mobile indirect calorimetry system (energy expenditure in kJ) and of manual video observation (step count). Bland and Altman, intraclass correlation coefficient (ICC), and correlation analyses were done using SPSS, version 19.0.
The SWA showed substantial agreement (ICC 0.717, P < 0.001) and a strong relationship (Pearson's correlation coefficient = 0.852) compared with the criterion measure when estimating energy expenditure during ADL. However, it was found that the SWA overestimated energy expenditure, particularly at higher intensity levels. The ability of the SWA to estimate step counts during ADL was poor (ICC 0.304, P = 0.038).
The SWA can be considered a valid tool to estimate energy expenditure during ADL in the RA population; however, attention should be paid to its tendency to overestimate energy expenditure.
鉴于心血管疾病导致类风湿关节炎（RA）患者死亡率增加，衡量此类人群的身体活动水平意义重大。建议在特定人群中验证活动监测仪，以确保身体活动测量的准确性。因此，本研究旨在确定 SenseWear Pro3 臂带（SWA）在 RA 患者日常活动（ADL）中测量身体活动的有效性。
从爱尔兰利默里克中西部地区医院的风湿病诊所招募了 14 名诊断为 RA 的受试者（8 名男性和 6 名女性）。参与者进行了一系列不同强度的 ADL。将 SWA 与标准测量方法（Oxycon Mobile 间接测热系统，以千焦耳计的能量消耗）和手动视频观察（计步）进行比较。使用 SPSS 版本 19.0 进行 Bland 和 Altman 分析、组内相关系数（ICC）和相关性分析。
与标准测量方法相比，SWA 在估计 ADL 期间的能量消耗时具有较高的一致性（ICC 0.717，P < 0.001）和较强的相关性（Pearson 相关系数=0.852）。然而，研究发现 SWA 高估了能量消耗，尤其是在较高强度水平下。SWA 估计 ADL 期间计步的能力较差（ICC 0.304，P = 0.038）。
SWA 可被视为估计 RA 人群 ADL 期间能量消耗的有效工具；但应注意其高估能量消耗的倾向。
