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- Blankenau, I., et al.
(författare)
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A comparison of body height estimated by different proxy measures in Swedish older adults
- 2012
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Approximately 40 per cent of older adults living at home are at risk of malnutrition. To detect this condition, body mass index is often used as a tool. The standard way of measuring body height is in a standing position. Height decreases with age and further, many older adults are not physically capable to undergo standing height measures. As height is one of the components in BMI it can be affected by body height decrease which in turn will affect the estimated prevalence of malnutrition risk. There are many different ways to estimate height by proxy measures. The aim of this study was to investigate whether proxy measurements could prove to be useful when estimating height in Swedish community-dwelling older adults. Home visits were made to 51 men and 51 women, who had participated in the randomized, single-blinded health-promoting intervention study, Elderly in the Risk Zone, living in the urban district Örgryte-Härlanda in Gothenburg, Sweden. Body weight, standing height, recumbent height, knee-height and demi-span was measured. An interview was also conducted, retrieving information regarding e.g. height around 20 years of age. T-test and Wilcoxon rank tests were performed and to further examine the results regression analyses and Bland & Altman-plots were conducted. The result showed that between 20 years of age to present age the men had decreased, in body height, on average 3,8 cm and the women 4,9 cm. In both the regression analysis and in the Bland & Altman plots, recumbent height and youth height seem to best conform to standing measured height. In the men, a negative correlation was found between the difference standing and knee-height measure of body height compared to mean values of the two measures in the Bland & Altman plots, though it was the only measurement that did not show any group mean statistical significant difference from standing height by t-test. No negative or positive correlation was seen in the women by the Bland & Altman plots. Demi-span gave an underestimation of body height in both genders. The present results show that body height seems to decrease with age and that besides standing, the best proxy measure is recumbent height otherwise that right knee-height could be used. Different height measurements could affect the BMI classification. Though we need to learn more about what affects the height decrease with age and what proxy measures are reliable. It would be desirable that a larger study would be conducted.
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| 5. |
- Lindblad, A., et al.
(författare)
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Body Composition in Relation to Physical Function in Healthy Community-Dwelling Older Adults in Sweden : A Cross-Sectional Study
- 2012
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Background: The expression older adult refers to a person who is 65 years and older. This part of the population has increased over the past decades, and is expected to increase further, by almost 70 % over the next 90 years. Muscle mass decreases with increasing age which affects physical function and nutritional status. Age also result in increased risk of diseases that can affect the muscle mass negatively. Measurement of body composition provides information of nutritional status and indications of physical function. Reference values from healthy older adults are required as a comparison when assessing body composition, nutritional status & physical function in different groups of older adults. Objective: To study physical function in relation to body composition in an apparently healthy elderly Swedish population. Methods: One hundred community-dwelling men and women were visited. The study population was part of the project Elderly in the Risk Zone, conducted in Gothenburg with people 80 years and older within the city district Örgryte-Härlanda. Inclusion criteria in this study were those remaining after two years of follow-up, still living within the area in their own home. Exclusion criteria were pacemaker, fractures, amputation, paralysis, dementia and recent or ongoing influenza or calici. The participants answered a few questions and preformed a series of tests to determine physical function and autonomy. Height and weight were measured, as well as body composition using a bioelectrical impedance spectroscopy (BIS). The main study Elderly in the Risk Zone was approved by the Regional Ethical Review Board in Gothenburg (Dnr 650-07). This study was approved as an addition to Elderly Persons in the Risk Zone (T176-12). Results: Mean age was 86.5 years. Men and women performed equally well at the Standing-up-test and there were no difference in BMI between sexes. Men were significantly heavier, taller, stronger, and had more TBW, ECW, ICW and FFM than women. Out of the whole population, nineteen percent had low FFMI, no one with concurrent low FMI, although three men had low FFMI with high FMI. Fifteen percent were underweight according to BMI. Conclusion: The older adults in Örgryte-Härlanda show adequate physical function indicated by FFM and better hand grip strength in comparison to previous studies. Physical function appears to be more associated with body composition than chronological age. Combined measurements of body composition and hand grip strength seem to be efficient methods for assessing physical function in community-dwelling older adults.
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| 6. |
- Lindblad, A., et al.
(författare)
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Body Composition in Relation to Physical Function in Healthy Community-Dwelling Older Adults in Sweden : A Cross-Sectional Study
- 2012
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Background: The expression older adult refers to a person who is 65 years and older. This part of the population has increased over the past decades, and is expected to increase further, by almost 70 % over the next 90 years. Muscle mass decreases with increasing age which affects physical function and nutritional status. Age also result in increased risk of diseases that can affect the muscle mass negatively. Measurement of body composition provides information of nutritional status and indications of physical function. Reference values from healthy older adults are required as a comparison when assessing body composition, nutritional status & physical function in different groups of older adults. Objective: To study physical function in relation to body composition in an apparently healthy elderly Swedish population. Methods: One hundred community-dwelling men and women were visited. The study population was part of the project Elderly in the Risk Zone, conducted in Gothenburg with people 80 years and olderwithin the city district Örgryte-Härlanda. Inclusion criteria in this study were those remaining after two years of follow-up, still living within the area in their own home. Exclusion criteria were pacemaker, fractures, amputation, paralysis, dementia and recent or ongoing influenza or calici. The participants answered a few questions and preformed a series of tests to determine physical function and autonomy. Height and weight were measured, as well as body composition using a bioelectrical impedance spectroscopy (BIS). The main study Elderly in the Risk Zone was approved by the Regional Ethical Review Board in Gothenburg (Dnr 650-07). This study was approved as an addition to Elderly Persons in the Risk Zone (T176-12). Results: Mean age was 86.5 years. Men and women performed equally well at the Standing-up-test and there were no difference in BMI between sexes. Men were significantly heavier, taller, stronger, and had more TBW, ECW, ICW and FFM than women. Out of the whole population, nineteen percent had low FFMI, no one with concurrent low FMI, although three men had low FFMI with high FMI. Fifteen percent were underweight according to BMI. Conclusion: The older adults in Örgryte-Härlanda show adequate physical function indicated by FFM and better hand grip strength in comparison to previous studies. Physical function appears to be more associated with body composition than chronological age. Combined measurements of body composition and hand grip strength seem to be efficient methods for assessing physical function in community-dwelling older adults.
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