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A spatial perturbation framework to validate implantation of the epileptogenic zone

Author(s): Jaber K; Avigdor T; Mansilla D; Ho A; Thomas J; Abdallah C; Chabardes S; Hall J; Minotti L; Kahane P; Grova C; Gotman J; Frauscher B;

Stereo-electroencephalography (SEEG) is the gold standard to delineate surgical targets in focal drug-resistant epilepsy. SEEG uses electrodes placed directly into the brain to identify the seizure-onset zone (SOZ). However, its major constraint is limited brain coverage, potentially leading to m ...

Article GUID: 38897997


Comparing assessment methods of low back pain related disability in student circus artists: A cross-sectional study

Author(s): Rossini B; Anstruther M; Fortin M;

Background: Student circus artists put constant stress on their back. However, the presence of low back pain (LBP) and related disability in this population remains unclear. Objectives: To 1) examine LBP history in circus artists and compare related disability scores using the Oswestry Disability Index (ODI) and the Athlete Disability Index (ADI), and 2) ...

Article GUID: 38848166


Neuromodulatory subcortical nucleus integrity is associated with white matter microstructure, tauopathy and APOE status

Author(s): Wearn A; Tremblay SA; Tardif CL; Leppert IR; Gauthier CJ; Baracchini G; Hughes C; Hewan P; Tremblay-Mercier J; Rosa-Neto P; Poirier J; Villeneuve S; Schmitz TW; Turner GR; Spreng RN;

The neuromodulatory subcortical nuclei within the isodendritic core (IdC) are the earliest sites of tauopathy in Alzheimer's disease (AD). They project broadly throughout the brain's white matter. We investigated the relationship between IdC microstructure and whole-brain white matter mic ...

Article GUID: 38830849


DEXA Body Composition Asymmetry Analysis and Association to Injury Risk and Low Back Pain in University Soccer Players

Author(s): Vaillancourt N; Montpetit C; Carile V; Fortin M;

Soccer is a laterally dominant sport owing to the repetitive nature of unilateral kicking. The relationship between functional and body composition asymmetries related to limb dominance in soccer players has yet to be established. When present, asymmetries can increase the risk of injury and low back pain. Our study investigated whether lateral dominance ...

Article GUID: 38791774


Arthritis is associated with high nutritional risk among older Canadian adults from the Canadian Longitudinal Study on Aging

Author(s): Bennett R; Demmers TA; Plourde H; Arrey K; Armour B; Ferland G; Kakinami L;

This study assessed the association between arthritis, functional impairment, and nutritional risk (NR). Cross-sectional data were from the Canadian Longitudinal Study on Aging, a nationally representative sample of 45-85-year-old community-dwelling Canadians (n = 41,153). The abbreviated Seniors in the Community: Risk Evaluating for Eating and Nutrition ...

Article GUID: 38734730


Paraspinal Muscle Changes in Individuals with and without Chronic Low Back Pain over a 4-Month Period: A Longitudinal MRI Study

Author(s): Anstruther M; Sean M; Tétreault P; Fortin M;

Background and Objectives: Previous research has shown associations between atrophy and fatty infiltration of the lumbar paraspinal musculature and low back pain (LBP). However, few studies have examined longitudinal changes in healthy controls and individuals with LBP without intervention. We aimed to investigate the natural variations in lumbar paraspin ...

Article GUID: 38541216


MVComp toolbox: MultiVariate Comparisons of brain MRI features accounting for common information across metrics

Author(s): Tremblay SA; Alasmar Z; Pirhadi A; Carbonell F; Iturria-Medina Y; Gauthier CJ; Steele CJ;

Multivariate approaches have recently gained in popularity to address the physiological unspecificity of neuroimaging metrics and to better characterize the complexity of biological processes underlying behavior. However, commonly used approaches are biased by the intrinsic associations between variables, or they are computationally expensive and may be m ...

Article GUID: 38463982


Decreased long-range temporal correlations in the resting-state functional magnetic resonance imaging blood-oxygen-level-dependent signal reflect motor sequence learning up to 2 weeks following training

Author(s): Jäger AP; Bailey A; Huntenburg JM; Tardif CL; Villringer A; Gauthier CJ; Nikulin V; Bazin PL; Steele CJ;

Decreased long-range temporal correlations (LRTC) in brain signals can be used to measure cognitive effort during task execution. Here, we examined how learning a motor sequence affects long-range temporal memory within resting-state functional magnetic resonance imaging signal. Using the Hurst e ...

Article GUID: 38124341


Effect of aquatic exercise versus standard care on paraspinal and gluteal muscles morphology in individuals with chronic low back pain: a randomized controlled trial protocol

Author(s): Rosenstein B; Montpetit C; Vaillancourt N; Dover G; Khalini-Mahani N; Weiss C; Papula LA; Melek A; Fortin M;

Background: Low back pain (LBP) is one of the most disabling diseases and a major health issue. Despite the evidence of a link between paraspinal and gluteal muscle dysfunction and LBP, it is unknown whether aquatic exercises can lead to improvements in paraspinal and gluteal muscle morphology an ...

Article GUID: 38110922


PILLAR: ParaspInaL muscLe segmentAtion pRoject - a comprehensive online resource to guide manual segmentation of paraspinal muscles from magnetic resonance imaging

Author(s): Anstruther M; Rossini B; Zhang T; Liang T; Xiao Y; Fortin M;

Background: There is an increasing interest in assessing paraspinal morphology and composition in relation to low back pain (LBP). However, variations in methods and segmentation protocols contribute to the inconsistent findings in the literature. We present an on-line resource, the ParaspInaL muscLe segmentAtion pRoject (PILLAR, https://projectpillar.git ...

Article GUID: 37996857


Compensatory health motivations and behaviors scale: Development, evaluation, psychometric properties and a preliminary validation

Author(s): Sedemedes K; Knäuper B; Sadikaj G; Yuan TY; Wrosch C; Santosa S; Alberga AS; Kakinami L;

The "Compensatory Health Beliefs" scale assesses the degree to which one believes that unhealthy behaviours can be compensated through healthier ones. However, no validated scale to assess compensatory weight-related behaviors exists. The study's objective was to develop (Study 1) and validate (Study 2) a questionnaire measuring compensatory health mo ...

Article GUID: 37804879


Improvements in cardiorespiratory fitness, muscle strength and body composition to modest weight loss are similar in those with adult- versus childhood-onset obesity

Author(s): Lucas Guimarães Almeida

Adults who have had obesity from childhood are at greater risk of obesity-related comorbidities compared to those who only develop obesity in adulthood. The main way of mitigating these risks in obesity is with weight loss, which has been shown to positively affect the cardiorespiratory fitness (CRF) and body composition of adults. However, it is unclear ...

Article GUID: 37794721


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