Rejeski W J, Martin K A, Miller M E, Ettinger W H, Rapp S
Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC 27109, USA.
Ann Behav Med. 1998 Spring;20(2):141-8. doi: 10.1007/BF02884460.
This investigation examined the determinants of satisfaction with physical function for participants in an Observational Arthritis Study in Seniors (OASIS). The sample consisted of 480 men (51%) and women (49%) over the age of 65 years who had difficulty performing activities of daily living due to knee pain. As part of baseline testing for OASIS, participants completed a measure that assessed satisfaction with function for six physical activities. After controlling for relevant covariates, scores on the satisfaction index were regressed on seven conceptually relevant predictor variables. The results revealed that satisfaction with physical function is a distinct construct from level of function, irrespective of whether the latter variable is measured objectively or subjectively. When entered into a hierarchical regression model, 6-minute walk test data accounted for 11% of the variance in satisfaction scores, whereas perceived difficulty accounted for an additional 22%. Moreover, a significant interaction term between importance and perceived difficulty revealed that patients who rated the activities as important and who had high levels of perceived difficulty had the lowest satisfaction scores. Discussion focuses on the determinants of satisfaction with physical function with emphasis on the interaction between perceived difficulty and importance.
本研究调查了老年骨关节炎观察性研究（OASIS）参与者对身体功能满意度的决定因素。样本包括480名65岁以上的男性（51%）和女性（49%），他们因膝关节疼痛而在进行日常生活活动时存在困难。作为OASIS基线测试的一部分，参与者完成了一项评估对六项身体活动功能满意度的测量。在控制了相关协变量后，将满意度指数得分对七个概念上相关的预测变量进行回归分析。结果显示，无论功能水平是客观测量还是主观测量，对身体功能的满意度都是一个与功能水平不同的概念。当纳入层次回归模型时，6分钟步行测试数据占满意度得分方差的11%，而感知到的困难又额外占22%。此外，重要性和感知到的困难之间的显著交互项表明，将活动评为重要且感知到的困难程度高的患者满意度得分最低。讨论重点在于身体功能满意度的决定因素，特别强调感知到的困难与重要性之间的相互作用。
