Sportorthopädie

Background: There is some evidence that regular physical activity has protective effects on cognitive functions in elderly people. The optimal dose of physical activity remains to be elucidated. We conducted a systematic literature research to detect a dose-response-relationship with quantitative me...

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Autores principales:	Stroehlein JK, van den Bongard F, Barthel T, Reinsberger C
Formato:	article
Lenguaje:	DE EN
Publicado:	Dynamic Media Sales Verlag 2017
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/5b07b33ba6054cb2b3f80249560ae1c3
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spelling	oai:doaj.org-article:5b07b33ba6054cb2b3f80249560ae1c32021-11-16T19:01:41ZSportorthopädie0344-59252510-526410.5960/dzsm.2017.300https://doaj.org/article/5b07b33ba6054cb2b3f80249560ae1c32017-10-01T00:00:00Zhttps://www.germanjournalsportsmedicine.com/archive/archive-2017/issue-10/dose-response-relationship-between-physical-activity-and-cognition-in-elderly/https://doaj.org/toc/0344-5925https://doaj.org/toc/2510-5264Background: There is some evidence that regular physical activity has protective effects on cognitive functions in elderly people. The optimal dose of physical activity remains to be elucidated. We conducted a systematic literature research to detect a dose-response-relationship with quantitative measures between physical activity and cognitive performance.Method: We searched PubMed and Ovid for randomized controlled trials. Intensity and total numberof minutes of exercise per week were converted into metabolic equivalent (MET) values per week. Standardized Mean Differences were calculated to determine the effect of the physical intervention on executive functions, attention, processing speed, verbal memory, short- and long-term memory. Methodological quality was assessed by risk of bias with the Cochrane Collaboration tool.Results: 13 studies were analyzed. Eight studies reached two and three points in the quality assessment, five studies reached between four and six points. Low, moderate and high MET/week values were related to marginal, small, medium and high effect sizes for each health status. Indications were found for a linear dose-response relationship between executive functions and MET/week for the MCI population, but not for healthy elderly and AD patients. Conclusion: A dose-response-relationship superior to other intensities was not found for any group. Consensus on cognitive outcomes and the exploration of the effects of different types of exercise in healthy elderly, MCI- and AD-patients might help to elucidate the optimal dose of physical activity on age- and AD-affected cognitive functions.KEY WORDS: Dose-Response-Relationship, Cognitive Performance, Physical Activity, Metabolic Equivalent, DementiaStroehlein JKvan den Bongard FBarthel TReinsberger CDynamic Media Sales VerlagarticleSports medicineRC1200-1245DEENDeutsche Zeitschrift für Sportmedizin, Vol 68, Iss 10 (2017)
institution	DOAJ
collection	DOAJ
language	DE EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Stroehlein JK van den Bongard F Barthel T Reinsberger C Sportorthopädie
description	Background: There is some evidence that regular physical activity has protective effects on cognitive functions in elderly people. The optimal dose of physical activity remains to be elucidated. We conducted a systematic literature research to detect a dose-response-relationship with quantitative measures between physical activity and cognitive performance.Method: We searched PubMed and Ovid for randomized controlled trials. Intensity and total numberof minutes of exercise per week were converted into metabolic equivalent (MET) values per week. Standardized Mean Differences were calculated to determine the effect of the physical intervention on executive functions, attention, processing speed, verbal memory, short- and long-term memory. Methodological quality was assessed by risk of bias with the Cochrane Collaboration tool.Results: 13 studies were analyzed. Eight studies reached two and three points in the quality assessment, five studies reached between four and six points. Low, moderate and high MET/week values were related to marginal, small, medium and high effect sizes for each health status. Indications were found for a linear dose-response relationship between executive functions and MET/week for the MCI population, but not for healthy elderly and AD patients. Conclusion: A dose-response-relationship superior to other intensities was not found for any group. Consensus on cognitive outcomes and the exploration of the effects of different types of exercise in healthy elderly, MCI- and AD-patients might help to elucidate the optimal dose of physical activity on age- and AD-affected cognitive functions.KEY WORDS: Dose-Response-Relationship, Cognitive Performance, Physical Activity, Metabolic Equivalent, Dementia
format	article
author	Stroehlein JK van den Bongard F Barthel T Reinsberger C
author_facet	Stroehlein JK van den Bongard F Barthel T Reinsberger C
author_sort	Stroehlein JK
title	Sportorthopädie
title_short	Sportorthopädie
title_full	Sportorthopädie
title_fullStr	Sportorthopädie
title_full_unstemmed	Sportorthopädie
title_sort	sportorthopädie
publisher	Dynamic Media Sales Verlag
publishDate	2017
url	https://doaj.org/article/5b07b33ba6054cb2b3f80249560ae1c3
work_keys_str_mv	AT stroehleinjk sportorthopadie AT vandenbongardf sportorthopadie AT barthelt sportorthopadie AT reinsbergerc sportorthopadie
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Sportorthopädie

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