Measuring Disability and Function in Older Women: Psychometric Properties of the Late-Life Function and Disability Instrument

Abstract

The LL-FDI appears to be an effective instrument for assessing function and disability in older women, and the abbreviated version reported here may prove useful in certain circumstances due to its brevity. However, continued determination of the construct validity of the complete and abbreviated scales is recommended.

Physical Activity and Quality of Life—The Complementary Influence of Self-Efficacy for Physical Activity and Mental Health Difficulties

“…In model 1, physical activity was associated with mental health difficulties by way of its association with self-efficacy, whereas in model 2, physical activity was directly related to mental health difficulties. The results that we observed in model 1 confirm results of previous studies [14,44,45]. Furthermore, both self-efficacy and mental health difficulties Physical Activity were significantly associated with global QoL.…”

Internet intervention for increasing physical activity in persons with multiple sclerosis

“…Functional limitations represented impediments for physical activity and were measured using the Functional Limitations component of the abbreviated Late-Life Function and Disability Instrument (LL-FDI). 28 The Functional Limitations component of the abbreviated LL-FDI contains 15 items that correspond with advanced lower extremity function, basic lower extremity function, and upper extremity function. An example item for the advanced lower extremity function was 'How much difficulty do you have with going up and down a flight of stairs outside, without using a handrail?'…”

“…The subscale scores were summed into a composite measure of functional limitations and higher scores reflect fewer functional limitations. There is evidence for the psychometric properties of the abbreviated LL-FDI in adults 28 and persons with MS. 29 Goal setting. Goal setting for exercise and physical activity was measured by the Exercise Goal setting Scale (EGS).…”

Validation of the Spanish Version of the Short-Form Late-Life Function and Disability Instrument

“…10-12 An abbreviated version of this measure, the short-form LLFDI (SF-LLFDI) has been validated. 13 This abbreviated measure has previously been translated and validated successfully in several languages, including German, 14 Hebrew, 15 and Korean, 16 and its utility has been demonstrated in research, clinical practice, and public health care. …”