scholarly journals Nutritional Assessment of Institutionalized and Free-living Elderly in Alexandria: A Comparative Study

2011 ◽  
Vol 41 (1) ◽  
pp. 159-174
Author(s):  
Heba El Kady ◽  
Dalia Tayel
2009 ◽  
Vol 13 (9) ◽  
pp. 1328-1332 ◽  
Author(s):  
Aditya Vedantam ◽  
Vijay Subramanian ◽  
Nicholas Vijay Rao ◽  
KR John

AbstractObjectiveTo estimate the prevalence of malnutrition among free-living elderly in a rural population of south India.DesignCross-sectional study. Nutritional status was assessed using the Mini Nutritional Assessment (MNA) questionnaire, which is an eighteen-item nutritional screening instrument used in the elderly.SettingKaniyambadi block, a rural development block in the state of Tamil Nadu, south India.SubjectsCommunity-dwelling elderly (aged 60 years and above).ResultsAs evaluated by the MNA, 14 % of the 227 subjects were malnourished and 49 % were at risk of malnourishment. No significant difference was found between men and women. The majority of the elderly were living with their children, had no income and consumed three meals per day. Older age (P < 0·001), decreased food intake (P < 0·001) and consuming fewer meals (P < 0·001) were independently associated with lower MNA scores.ConclusionsMore than 60 % of the subjects had low MNA scores (<23·5) indicating that deficient protein–energy intake is common among rural elderly of south India and requires more attention.


2003 ◽  
Vol 89 (1) ◽  
pp. 137-145 ◽  
Author(s):  
Clare A. Corish ◽  
Nicholas P. Kennedy

Anthropometric screening has been recommended for the detection of undernutrition as it is simple, inexpensive and non-invasive. However, a recent study estimating the prevalence of undernutrition on admission to hospital in Dublin, Republic of Ireland, highlighted that the anthropometric reference data currently available in the UK and Republic of Ireland are inadequate to accurately determine nutritional status. In order to provide current anthropometric data, we carried out a cross-sectional study of 874 free-living, apparently healthy Irish-born elderly individuals aged over 65 years. Height, weight, triceps skinfold thickness, mid-arm and calf circumference were measured, values for BMI, mid-arm muscle circumference and arm muscle area were calculated and smoothed centile data derived for each variable. One-third of these elderly individuals had a BMI between 20–25 k/2, approximately two-thirds (68·5 % of males and 61 % of females) were classified as overweight or obese, almost one-fifth having a BMI over 30 k/2(17 % of men and 20 % of women). Very few were underweight, only 3 % having a BMI below 20 k/2. Height, weight, BMI and muscle reserves decreased with increasing age. The reduction in muscle size was associated with lower handgrip strength. Fat reserves declined with age in females only. Just over half of elderly Irish women reported participating in active leisure of 20 min duration four or more time/eek, although 13 % reported having no involvement in active leisure. These data for the Irish elderly extend the data generated from a recent countrywide survey of Irish adults aged 18–64 years, thus providing suitable reference standards for nutritional assessment of elderly Irish individuals.


PLoS ONE ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. e0234426
Author(s):  
Marie-Louise K. Mikkelsen ◽  
Gabriele Berg-Beckhoff ◽  
Peder Frederiksen ◽  
Graham Horgan ◽  
Ruairi O’Driscoll ◽  
...  

2020 ◽  
Vol 117 (40) ◽  
pp. 24643-24645 ◽  
Author(s):  
Sergey E. Farisenkov ◽  
Nadejda A. Lapina ◽  
Pyotr N. Petrov ◽  
Alexey A. Polilov

Size is a key to locomotion. In insects, miniaturization leads to fundamental changes in wing structure and kinematics, making the study of flight in the smallest species important for basic biology and physics, and, potentially, for applied disciplines. However, the flight efficiency of miniature insects has never been studied, and their speed and maneuverability have remained unknown. We report a comparative study of speeds and accelerations in the smallest free-living insects, featherwing beetles (Coleoptera: Ptiliidae), and in larger representatives of related groups of Staphylinoidea. Our results show that the average and maximum flight speeds of larger ptiliids are extraordinarily high and comparable to those of staphylinids that have bodies 3 times as long. This is one of the few known exceptions to the “Great Flight Diagram,” according to which the flight speed of smaller organisms is generally lower than that of larger ones. The horizontal acceleration values recorded in Ptiliidae are almost twice as high as even in Silphidae, which are more than an order of magnitude larger. High absolute and record-breaking relative flight characteristics suggest that the unique morphology and kinematics of the ptiliid wings are effective adaptations to flight at low Reynolds numbers. These results are important for understanding the evolution of body size and flight in insects and pose a challenge to designers of miniature biomorphic aircraft.


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