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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


Establishing work productivity loss norms: Absenteeism and presenteeism in a Canadian working population

Author(s): Zhang W; Qian H; L' Heureux J; Johns G; Koehoorn M; Woodcock S;

Cost-effectiveness guidelines recommend including productivity losses in economic evaluations conducted from a societal perspective. However, work productivity loss estimates, including absenteeism and presenteeism, are lacking for a general working population. This limits the ability of researchers and decision makers to comprehensively evaluate the incr ...

Article GUID: 41469277


Design, Analysis, and Prototyping of a Multifunctional Digital Twin-Enabled Aerospace Drilling End-Effector Deployable by a Collaborative Robot

Author(s): Kazemiesfahani M; Dilfanian E; Monsarrat B; Hajzargarbashi S;

Drilling in aerospace one-up assembly demands high positional accuracy, strong clamping forces, and precise angular compensation to ensure quality in multi-layered stacks. Existing robotic solutions achieve these requirements but are costly, bulky, and unsuitable for flexible or collaborative environments. This work introduces the Advanced Collaborative M ...

Article GUID: 41471503


How sex impacted associations between psychological distress and worry on adults health behaviours during SARS-CoV-2

Author(s): Deslippe AL; Lavoie KL; Bacon SL; Cohen TR;

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been associated with poorer mental well-being (e.g., anxiety, depressive symptoms and infection worry) and unfavorable changes in health behaviours (e.g., physical activity, healthy eating, and alcohol intake). Notably, trends in changes appear to differ between adult males and females (>18 ...

Article GUID: 41460840


Contextual use of male-male social information by Trinidadian guppies

Author(s): Brusseau AJP; Dumaresq-Synnott F; Morris J; Nagl AC; Ramnarine IW; Crane AL; Brown GE;

Decision-making among prey often involves balancing fitness-related activities, such as foraging and mating, with the need to avoid predation. These trade-offs may be influenced by sex, especially among sexually dimorphic species where males and females face different selection pressures. Consistent with the 'Distracted Male Hypothesis', male Trin ...

Article GUID: 41460359


The Impact of Coronary Artery Disease on Brain Vascular and Metabolic Health: Links to Cognitive Function

Author(s): Sanami S; Tremblay SA; Rezaei A; Potvin-Jutras Z; Sabra D; Intzandt B; Gagnon C; Mainville-Berthiaume A; Wright L; Gayda M; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ;

Coronary artery disease (CAD), the leading cause of mortality worldwide, is increasingly recognized for its impact on brain health and cognition, yet the mechanisms linking CAD to vascular and metabolic alterations in the brain remain poorly understood. Prior work has identified regional deficits ...

Article GUID: 41452711


Biomarkers

Author(s): Paez A; Gillman SO; Dogaheh SB; Carnes A; Dakterzada F; Barbe F; Dang-Vu TT; Piñol-Ripoll G;

Background: Sleep plays vital roles in brain-health and cognition, including regulating clearance of ß-amyloid (Aß) and tau proteins that hallmark Alzheimer's disease (AD). Changes in sleep physiology can predate cognitive symptoms by decades in AD, but it remains unclear which sleep characte ...

Article GUID: 41452500


Clinical Manifestations

Author(s): Marinou S; Phillips NA;

Background: Subjective cognitive decline (SCD) is defined as a self-perceived decline in cognition without objective cognitive impairment and is considered a potential predictor of Alzheimer's disease (AD). However, summary-level neuropsychological test scores often fail to detect subtle cognitive changes in this group, making assessments challenging. ...

Article GUID: 41448190


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


Drug Development

Author(s): Cunningham NP; Tremblay-Mercier J; Baril AA; Dang-Vu TT; Lim A; Geddes MR; Badawy M; Poirier J; Ducharme S; Villeneuve S;

Background: Poor sleep is a modifiable factor associated with the development and progression of Alzheimer's Disease (AD). Pharmacological treatments and Cognitive Behavioural Therapy for Insomnia (CBT-I) which promote sleep have the potential to improve AD risk profile. In addition, prior re ...

Article GUID: 41450269


Dyadic Associations Between Eating Behaviors and Body Mass Index in Couples with a Member Living with Overweight: A Longitudinal Study

Author(s): Hollett KB; Morin AJS; Carrese-Chacra E; Cohen TR; Carbonneau N; Berthiaume MM; Felice E; Gouin JP;

Socioecological models of health view romantic relationships as micro-social systems in which spouses influence one another's health-related thoughts, feelings, and behaviors. Although prior work suggests spousal interdependence in eating behaviors, the degree of interdependence may vary as a ...

Article GUID: 41448461


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