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Determinants of independence in the elderly
D A Cunningham1, D H Paterson, J E Himann
1Centre for Activity and Ageing, U. of Western Ontario, London.
Summary
Elderly individuals living independently exhibit superior flexibility, activity levels, and walking speed compared to those in care facilities. Outdoor activities, shoulder flexibility, and walking speed predict independence in older adults.
Area of Science:
- Gerontology
- Exercise Physiology
- Biomedical Science
Background:
- Maintaining physical function is crucial for elderly independence.
- Factors influencing independent living in older adults require further investigation.
Purpose of the Study:
- To compare strength, flexibility, and cardiorespiratory fitness between independent elderly and those in care homes.
- To identify key variables associated with an independent lifestyle in the elderly.
Main Methods:
- Quantitative assessment of independence (Incapacity Index) and activity levels via questionnaires.
- Measurement of flexibility (Leighton Flexometer), strength (sphygmomanometer), and cardiorespiratory fitness (walking test).
- Statistical analysis, including multiple regression, to account for age and identify predictors of independence.
Main Results:
- Independent elderly individuals demonstrated significantly higher flexibility, activity levels, and walking speed.
- 40% of the variance in the Incapacity Index was explained by outdoor activity participation, shoulder flexibility, and faster walking speed (> 1.0 m.s-1).
Conclusions:
- Physical fitness components, particularly flexibility and cardiorespiratory fitness, are strongly linked to maintaining independence in older adults.
- Promoting outdoor activities and improving walking speed may enhance independent living for the elderly.