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Intra-individual variability in cognitive performance predicts falls in older adults with chronic stroke

Author(s): Dimri V; Davis JC; Boa Sorte Silva NC; Balbim GM; Eng JJ; Liu-Ambrose T;

Background: Common consequences of a stroke include impaired motor and cognitive function, with both being linked to increased falls and frailty. Intra-individual variability (IIV) of cognitive performance, which refers to the within-person trial-to-trial variation in reaction time during cognitive tasks, may be a useful predictor for falls in older adult ...

Article GUID: 41474479


Dementia Care Research and Psychosocial Factors

Author(s): Mancor E; Montero-Odasso M; Bherer L; Almeida QJ; Liu-Ambrose T; Middleton LE; Camicioli R; Li K;

Background: Cognitive and motor deficits have been found to be important markers of Mild Cognitive Impairment (MCI), a pre-dementia risk state. Recently, aerobic exercise (AE) and cognitive training (CT) interventions significantly improved cognitive and motor function in older adults with MCI. R ...

Article GUID: 41448628


Clinical Manifestations

Author(s): Gagnon C; Montero-Odasso M; Zou G; Speechley MR; Almeida QJ; Liu-Ambrose T; Middleton LE; Camicioli R; Bray NW; Li K; Fraser S; Pieruccini-Faria F; Burhan AM; Berryman N; Lussier M; Son S; Shoemaker JK; Bherer L;

Background: In recent years, many studies have investigated the effects of non-pharmacological interventions (e.g. physical and cognitive training) on cognition in patients with mild cognitive impairment. The SYNERGIC trial showed that combining physical exercise and cognitive training leads to g ...

Article GUID: 41447475


Developing Topics

Author(s): Silva NCBS; Stein RG; Gu Y; Hsu CL; Tam RC; Salluzzi M; McCreary CR; Alkeridy WA; Lam K; MacKay AL; Kolind S; Cossette B; Griffith LE; Hogan DB; McMillan JM; Raina P; Smith EE; Liu-Ambrose T;

Background: Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the causative agent of COVID-19 and has infected >700 million persons worldwide. Individuals infected with SARS-CoV-2 are at risk for cognitive decline and at higher risk of dementia compared with those diagnosed with oth ...

Article GUID: 41434542


Public Health

Author(s): Silva NCBS; Balbim GM; Stein RG; Gu Y; Tam RC; Dao E; Alkeridy WA; Kramer AF; Liu-Ambrose T;

Background: Physical activity is associated with higher myelin content in older individuals with cerebral small vessel disease (CSVD), a condition marked by demyelination. However, potential mechanisms underlying these associations remain understudied. High-density lipoprotein (HDL) is involved i ...

Article GUID: 41435075


Public Health

Author(s): Pieruccini-Faria F; Son S; Liu-Ambrose T; Burhan AM; Almeida QJ; Middleton LE; Li K; Fraser S; Bherer L; Montero-Odasso M;

Background: Mild Cognitive Impairment (MCI) may be associated with the presence of the apolipoprotein E4 allele (APOE4), a genetic factor linked to accelerated cognitive decline. The SYNERGIC trial demonstrated that physical exercise (PE) involving aerobic and resistance training improves global ...

Article GUID: 41435121


Synergistic effects of exercise, cognitive training and vitamin D on gait performance and falls in mild cognitive impairment-secondary outcomes from the SYNERGIC trial

Author(s): Pieruccini-Faria F; Son S; Zou G; Almeida QJ; Middleton LE; Bray NW; Lussier M; Shoemaker JK; Speechley M; Liu-Ambrose T; Burhan AM; Camicioli R; Li KZH; Fraser S; Berryman N; Bherer L; Montero-Odasso M;

Background: Older adults with mild cognitive impairment (MCI) have a higher risk of gait impairments and falls; yet, the effects of multimodal interventions, including combinations of exercises with cognitive training, on improving their mobility remain unclear. Objectives: To investigate the sy ...

Article GUID: 40966614


24-hour activity cycle behaviors and gray matter volume in mild cognitive impairment

Author(s): Balbim GM; Boa Sorte Silva NC; Falck RS; Kramer AF; Voss MW; Liu-Ambrose T;

Introduction: The 24-hour activity cycle (24-HAC) includes physical activity (PA), sedentary behavior (SB), and sleep. The 24-HAC composition and brain health relationship in adults with mild cognitive impairment (MCI) remains underexplored. We examined associations between 24-HAC composition and gray matter (GM) volume. Methods: Cross-sectional study in ...

Article GUID: 40693459


Physical activity may protect myelin via modulation of high-density lipoprotein

Author(s): Boa Sorte Silva NC; Balbim GM; Stein RG; Gu Y; Tam RC; Dao E; Alkeridy W; Lam K; Kramer AF; Liu-Ambrose T;

Introduction: Physical activity is associated with greater myelin content in older individuals with cerebral small vessel disease (CSVD), a condition marked by demyelination. However, potential mechanisms underlying this relationship remain understudied. Methods: We assessed cross-sectionally wh ...

Article GUID: 39989020


Effects of Exercise Alone or Combined With Cognitive Training and Vitamin D Supplementation to Improve Cognition in Adults With Mild Cognitive Impairment: A Randomized Clinical Trial

Author(s): Montero-Odasso M; Zou G; Speechley M; Almeida QJ; Liu-Ambrose T; Middleton LE; Camicioli R; Bray NW; Li KZH; Fraser S; Pieruccini-Faria F; Berryman N; Lussier M; Shoemaker JK; Son S; Bherer L;

Importance: Exercise, cognitive training, and vitamin D may enhance cognition in older adults with mild cognitive impairment (MCI). Objective: To determine whether aerobic-resistance exercises would improve cognition relative to an active control and if a multidomain intervention including exerc ...

Article GUID: 37471089


Guidelines for Gait Assessments in the Canadian Consortium on Neurodegeneration in Aging (CCNA).

Author(s): Cullen S, Montero-Odasso M, Bherer L, Almeida Q, Fraser S, Muir-Hunter S, Li K, Liu-Ambrose T, McGibbon CA, McIlroy W, Middleton LE, Sarquis-Adamson Y, Beauchet O, McFadyen BJ, Morais JA, Camicioli R, Canadian Gait and Cognition Network

Can Geriatr J. 2018 Jun;21(2):157-165 Authors: Cullen S, Montero-Odasso M, Bherer L, Almeida Q, Fraser S, Muir-Hunter S, Li K, Liu-Ambrose T, McGibbon CA, McIlroy W, Middleton LE, Sarquis-Adamson Y, Beauchet O, McFadyen BJ, Morais JA, Camicioli R, Canadian Gait and Cognition Network

Article GUID: 29977431


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