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PubMed Publications| Keyword search (4,163 papers available) |  |
"Liu-Ambrose T" Authored Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Probing cognitive reserve with resting state functional connectivity in subcortical ischemic vascular cognitive impairment | Gu Y; Hsu CL; Boa Sorte Silva NC; Tam RC; Alkeridy WA; Lam K; Liu-Ambrose T; | 41929984 HKAP |
| 2 | Resistance training and subcortical vascular cognitive impairment: A 12-month randomized trial | Liu-Ambrose T; Falck RS; Dao E; Crockett RA; Barha CK; Silva NCBS; Alkeridy WA; Best JR; Hsiung GR; Field TS; Madden KM; Davis JC; Ten Brinke LF; Tam RC; | 41795685 HKAP |
| 3 | The effect of hearing ability on dual-task performance following multi-domain training in older adults with mild cognitive impairment: findings from the SYNERGIC trial | Downey RI; Petersen BJ; Mohanathas N; Campos JL; Montero-Odasso M; Bherer L; Pichora-Fuller MK; Bray NW; Burhan AM; Camicioli R; Fraser S; Liu-Ambrose T; Lussier M; Middleton LE; Pieruccini-Faria F; Phillips NA; Li KZH; | 41694460 SOH |
| 4 | Intra-individual variability in cognitive performance predicts falls in older adults with chronic stroke | Dimri V; Davis JC; Boa Sorte Silva NC; Balbim GM; Eng JJ; Liu-Ambrose T; | 41474479 HKAP |
| 5 | Dementia Care Research and Psychosocial Factors | Mancor E; Montero-Odasso M; Bherer L; Almeida QJ; Liu-Ambrose T; Middleton LE; Camicioli R; Li K; | 41448628 CONCORDIA |
| 6 | Clinical Manifestations | 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; | 41447475 CONCORDIA |
| 7 | Developing Topics | 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; | 41434542 CONCORDIA |
| 8 | Public Health | Silva NCBS; Balbim GM; Stein RG; Gu Y; Tam RC; Dao E; Alkeridy WA; Kramer AF; Liu-Ambrose T; | 41435075 CONCORDIA |
| 9 | Public Health | Pieruccini-Faria F; Son S; Liu-Ambrose T; Burhan AM; Almeida QJ; Middleton LE; Li K; Fraser S; Bherer L; Montero-Odasso M; | 41435121 CONCORDIA |
| 10 | Synergistic effects of exercise, cognitive training and vitamin D on gait performance and falls in mild cognitive impairment-secondary outcomes from the SYNERGIC trial | 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; | 40966614 SOH |
| 11 | 24-hour activity cycle behaviors and gray matter volume in mild cognitive impairment | Balbim GM; Boa Sorte Silva NC; Falck RS; Kramer AF; Voss MW; Liu-Ambrose T; | 40693459 HKAP |
| 12 | Physical activity may protect myelin via modulation of high-density lipoprotein | Boa Sorte Silva NC; Balbim GM; Stein RG; Gu Y; Tam RC; Dao E; Alkeridy W; Lam K; Kramer AF; Liu-Ambrose T; | 39989020 HKAP |
| 13 | 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 | 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; | 37471089 PERFORM |
| 14 | Guidelines for Gait Assessments in the Canadian Consortium on Neurodegeneration in Aging (CCNA). | 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 | 29977431 ENCS |
| 15 | SYNERGIC TRIAL (SYNchronizing Exercises, Remedies in Gait and Cognition) a multi-Centre randomized controlled double blind trial to improve gait and cognition in mild cognitive impairment. | Montero-Odasso M, Almeida QJ, Burhan AM, Camicioli R, Doyon J, Fraser S, Li K, Liu-Ambrose T, Middleton L, Muir-Hunter S, McIlroy W, Morais JA, Pieruccini-Faria F, Shoemaker K, Speechley M, Vasudev A, Zou GY, Berryman N, Lussier M, Vanderhaeghe L, Bherer L | 29661156 PERFORM |
| 16 | Consensus on Shared Measures of Mobility and Cognition: From the Canadian Consortium on Neurodegeneration in Aging (CCNA). | Montero-Odasso M, Almeida QJ, Bherer L, Burhan AM, Camicioli R, Doyon J, Fraser S, Muir-Hunter S, Li KZH, Liu-Ambrose T, McIlroy W, Middleton L, Morais JA, Sakurai R, Speechley M, Vasudev A, Beauchet O, Hausdorff JM, Rosano C, Studenski S, Verghese J, Canadian Gait and Cognition Network | 30101279 PERFORM |
| 17 | Brain gray matter volume associations with gait speed and related structural covariance networks in cognitively healthy individuals and in patients with mild cognitive impairment: A cross-sectional study. | Beauchet O, Montembeault M, Barden JM, Szturm T, Bherer L, Liu-Ambrose T, Chester VL, Li K, Helbostad JL, Allali G, Canadian Gait Consortium | 31075383 PSYCHOLOGY |
| 18 | A review of the effects of physical activity and exercise on cognitive and brain functions in older adults. | Bherer L, Erickson KI, Liu-Ambrose T | 24102028 PERFORM |
| 19 | Physical exercise and brain functions in older adults. | Bherer L, Erickson KI, Liu-Ambrose T | 24163767 PERFORM |
| 20 | Anti-Dementia Drugs, Gait Performance and Mental Imagery of Gait: A Non-Randomized Open-Label Trial. | Beauchet O, Barden J, Liu-Ambrose T, Chester VL, Annweiler C, Szturm T, Grenier S, Léonard G, Bherer L, Allali G, Canadian Gait Consortium | 27568453 PERFORM |
| 21 | Association Between Falls and Brain Subvolumes: Results from a Cross-Sectional Analysis in Healthy Older Adults. | Beauchet O, Launay CP, Barden J, Liu-Ambrose T, Chester VL, Szturm T, Grenier S, Léonard G, Bherer L, Annweiler C, Helbostad JL, Verghese J, Allali G, Biomathics and Canadian Gait Consortium | 27785698 PERFORM |
| Title: | Intra-individual variability in cognitive performance predicts falls in older adults with chronic stroke | ||||
| Authors: | Dimri V, Davis JC, Boa Sorte Silva NC, Balbim GM, Eng JJ, Liu-Ambrose T | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/41474479/ | ||||
| DOI: | 10.1007/s40520-025-03287-y | ||||
| Publication: | Aging clinical and experimental research | ||||
| Keywords: | Chronic stroke; Cognition; Falls; Intra-individual variability; Reaction time; | ||||
| PMID: | 41474479 | Category: | Date Added: | 2025-12-31 | |
| Dept Affiliation: |
HKAP
1 Aging, Mobility, and Cognitive Health Laboratory, University of British Columbia, Vancouver, BC, Canada. 2 Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada. 3 Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. 4 Centre for Aging SMART at Vancouver Coastal Health, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada. 5 Faculty of Management, University of British Columbia Okanagan, Kelowna, BC, Canada. 6 Department of Kinesiology, Health, and Applied Physiology, Concordia University, Montreal, QC, Canada. 7 Aging, Mobility, and Cognitive Health Laboratory, University of British Columbia, Vancouver, BC, Canada. teresa.ambrose@ubc.ca. 8 Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada. teresa.ambrose@ubc.ca. 9 Centre for Aging SMART at Vancouver Coastal Health, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada. teresa.ambrose@ubc.ca. 10 Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. teresa.ambrose@ubc.ca. 11 Djavad Mowafaghian Centre for Brain Health, c/o Liu-Ambrose Lab, 2215 Wesbrook Mall, Vancouver, BC, V6T 2B5, Canada. teresa.ambrose@ubc.ca. |
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Description: |
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 adults with chronic stroke. Objective: To examine whether IIV or "traditional" reaction time (RT) measures of cognitive performance predict falls in older adults with chronic stroke. Methods: This study is a secondary analysis of a proof-of-concept randomized controlled trial (RCT) among community-dwelling adults with a history of stroke, aged 55 years and older, able to walk 6 m, and without dementia. Residualised intraindividual standard deviation (rISD) was the measure of IIV and mean RT was the "traditional" measure of performance on a computerised Stroop Task. Falls were tracked and adjudicated over six months. Results: 120 participants with a mean (SD) age of 70 (8) years, and 46 (38%) female participants, experienced a mean of 0.61 (SD = 1.15) falls over 6 months. rISD for the congruent Stroop Task condition predicted falls, such that a one-unit increase was associated with 20.5% increase in fall rate. Conclusion: The findings suggest that IIV metrics may have the potential in fall risk screening post-stroke. Further research is required to evaluate whether IIV in cognitive performance can be improved via interventions such as cognitive training and physical activity. |
