• BMC geriatrics · Jul 2016

    Review

    Influence of combined physical and cognitive training on cognition: a systematic review.

    • Andreas Lauenroth, Anestis E Ioannidis, and Birgit Teichmann.
    • Network Aging Research (NAR), University of Heidelberg, Germany, Bergheimer Straße 20, 69115, Heidelberg, Germany. lauenroth@nar.uni-heidelberg.de.
    • BMC Geriatr. 2016 Jul 18; 16: 141.

    BackgroundNumerous daily activities require simultaneous application of motor and cognitive skills (dual-tasking). The execution of such tasks is especially difficult for the elderly and for people with (neuro-) degenerative disorders. Training of physical and cognitive abilities helps prevent or slow down the age-related decline of cognition. The aim of this review is to summarise and assess the role of combined physical-and-cognitive-training characteristics in improving cognitive performance and to propose an effective training scheme within the frame of a suitable experimental design.MethodsA systematic electronic literature search was conducted in selected databases. The following criteria were compulsory for inclusion in the study: 1. A (Randomized) Controlled Trial (RCT or CT) design; 2. Implementation of combined physical and cognitive training, either simultaneously (dual task) or subsequently - at least one hour per weekly over four weeks or more; 3. Cognitive outcomes as a study's endpoint.ResultsTwenty articles met the inclusion criteria. It appears that either simultaneous or subsequently combined physical and cognitive training is more successful compared to single physical or single cognitive exercise. Training characteristics like length, frequency, duration, intensity and level of task difficulty seem to determine cognitive performance. However, the articles show that cognitive improvement seems to remain somewhat confined to trained cognitive functions rather than generalising to other cognitive or daily-living skills.ConclusionDue to methodological heterogeneity among studies, results need to be treated with caution. We critically discuss the role of training characteristics and propose a potentially effective training intervention within an appropriate experimental design.

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