Page 33 - Petelin, Ana, and Šarabon, Nejc. 2018. Eds. Zdravje starostnikov / Health of the Elderly. Znanstvena monografija / Proceedings. Koper: University of Primorska Press
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The aim of this study was to examine the role of nutrition and physical role of physical activity and nutrition in prevention of frailty 33
activity in perspective of frailty, using a systematic literature review.

Methods
Descriptive research methodology was used to review peer-reviewed medical
literature. A systematic literature review was conducted as it enables the ob-
tainment of data from various sources and ensures a holistic understanding of
the research subject. The literature search was conducted using the following
databases: PubMed, The Cochrane Library, Embase, UpToDate, Cumulative
Index of Nursing and Allied Health Literature (CINAHL), by means of several
combinations of selected search words in the English language and their syno-
nyms were prepared and used with Boolean operators AND or OR, searching
in title, key words and in abstract. For nutrition the following key words were
selected: Geriatric Nutritional *() OR Elderly Protein deficiency *() OR Frailty
Energy intake *() OR Frailty D vitamin *() OR Ostheoporosis Nutrition *() OR
Frail Nutrition *() OR Frail Vulnerable Nutrition *() OR Functional decline
Protein deficiency *() OR Older person Sarcopenia *() OR Frail D vitamin *()
OR Aged Dietary supplements *() OR Cognitive decline *() OR Calcium Nu-
trition *() OR Calcium Older adult *() OR Geriatric Nutrition *() OR Disability
Nutrition *(); searching in title, key words and in abstract. For physical activ-
ity the following key words were selected: Frail Muscle strength *() OR Frail-
ty Activity *() OR Elderly Exercise *() OR Older adult Functional ability *()
OR Aged functional decline *() OR Older person Mobility *() OR Geriatric
Disability *() OR Inactivity Vulnerable Elderly *() OR Physical activity Aged
Function *() OR Training Aged *() OR Functional outcomes Geriatric *() OR
Physical interventions Vulnerable *() OR Sports Older person *() OR Patterns
of activity Older adult *() OR Leisure activity Elderly *(); searching in title, key
words and in abstract.

The selection criterion for articles to be included in the review was that
they were published during the last 15 years, i.e. between 2002 and 2017. Key
words were selected from a proposal of key words that was prepared by the
task leader and the working group focusing on Nutrition and Physical activ-
ity as part of the European Commission project “Joint Action on Frailty pre-
vention – JA ADVANTAGE”, Work Package 6 – Management of Frailty at In-
dividual Level.

Articles regarding current policies and guidelines on frailty prevention in
older people which were published in peer-reviewed scientific journals, as well
as international documents, standards, guidelines and research studies per-
formed in the EU were reviewed. Information from editorials, letters, inter-
views, posters and articles with no access to full text were not included in the
study.

Grey documents which were identified and proposed by the task leader
and the working group were also reviewed and included in the study. Grey doc-
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