Background People with mild cognitive impairment (MCI) experience alterations of functional parameters, such as impaired balance or gait. The current systematic review set out to investigate whether functional objective performance may predict a future risk of MCI; to compare functional objective parameters in people with MCI and a control group; and to assess changes in these parameters after different physical activity interventions.
Methods A systematic review of relevant literature was conducted. Literature were searched in PubMed, AMED, CINAHL, EMBASE, PEDro and Web of Science as well as grey literature databases. Cohort studies and Randomized Controlled Trials (RCTs) were included. Quality of reviewed studies were assessed independently by reviewers using quality assessment checklists. Results Seventeen studies met inclusion criteria including people with MCI.
Results from RCTs suggested that gait speed, gait variability and balance may be improved by different physical activity interventions. Cohort studies showed that gait speed,especially in Dual Task (DT) conditions, was the parameter impaired in people with MCI in comparison with a Control Gorup. Furthermore, cohort studies suggested that gait variability could be a predictor of MCI. However, RCTs showed an unclear risk of bias and all studies included in this systematic review reported a low quality of evidence.
Conclusions Studies suggest that gait variability may predict incident MCI, moreover different gait parameters, especially during DT conditions, could be impaired in MCI. These parameters could be improved by some physical activity interventions. Further studies are required to refute our findings.
PROSPERO: CRD42019119180.
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Posted 05 Mar, 2020
On 08 Apr, 2020
Received 04 Apr, 2020
Received 03 Apr, 2020
Received 29 Mar, 2020
On 26 Mar, 2020
On 25 Mar, 2020
On 25 Mar, 2020
Invitations sent on 25 Mar, 2020
On 03 Mar, 2020
On 02 Mar, 2020
On 02 Mar, 2020
On 12 Feb, 2020
Received 30 Jan, 2020
Received 23 Jan, 2020
Received 23 Jan, 2020
On 12 Jan, 2020
On 09 Jan, 2020
Invitations sent on 08 Jan, 2020
On 08 Jan, 2020
On 16 Dec, 2019
On 15 Dec, 2019
On 15 Dec, 2019
On 13 Dec, 2019
Posted 05 Mar, 2020
On 08 Apr, 2020
Received 04 Apr, 2020
Received 03 Apr, 2020
Received 29 Mar, 2020
On 26 Mar, 2020
On 25 Mar, 2020
On 25 Mar, 2020
Invitations sent on 25 Mar, 2020
On 03 Mar, 2020
On 02 Mar, 2020
On 02 Mar, 2020
On 12 Feb, 2020
Received 30 Jan, 2020
Received 23 Jan, 2020
Received 23 Jan, 2020
On 12 Jan, 2020
On 09 Jan, 2020
Invitations sent on 08 Jan, 2020
On 08 Jan, 2020
On 16 Dec, 2019
On 15 Dec, 2019
On 15 Dec, 2019
On 13 Dec, 2019
Background People with mild cognitive impairment (MCI) experience alterations of functional parameters, such as impaired balance or gait. The current systematic review set out to investigate whether functional objective performance may predict a future risk of MCI; to compare functional objective parameters in people with MCI and a control group; and to assess changes in these parameters after different physical activity interventions.
Methods A systematic review of relevant literature was conducted. Literature were searched in PubMed, AMED, CINAHL, EMBASE, PEDro and Web of Science as well as grey literature databases. Cohort studies and Randomized Controlled Trials (RCTs) were included. Quality of reviewed studies were assessed independently by reviewers using quality assessment checklists. Results Seventeen studies met inclusion criteria including people with MCI.
Results from RCTs suggested that gait speed, gait variability and balance may be improved by different physical activity interventions. Cohort studies showed that gait speed,especially in Dual Task (DT) conditions, was the parameter impaired in people with MCI in comparison with a Control Gorup. Furthermore, cohort studies suggested that gait variability could be a predictor of MCI. However, RCTs showed an unclear risk of bias and all studies included in this systematic review reported a low quality of evidence.
Conclusions Studies suggest that gait variability may predict incident MCI, moreover different gait parameters, especially during DT conditions, could be impaired in MCI. These parameters could be improved by some physical activity interventions. Further studies are required to refute our findings.
PROSPERO: CRD42019119180.
Figure 1
This is a list of supplementary files associated with this preprint. Click to download.
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