Publications by authors named "Antony Karelis"

The aim of this study was to measure the effects of chronic and acute aerobic exercise at two different intensities on cognitive performance and cerebrovascular response in coronary heart disease (CHD) patients. Thirty-five CHD patients completed two exercise bouts at 30% and 70% of their respective peak aerobic power on an ergocycle while performing cognitive tasks, which included nonexecutive and executive conditions before and after a 3-month training intervention. Variations of oxy- deoxy- and total hemoglobin concentrations were measured on the left prefrontal cortex at both intensities using near-infrared spectroscopy.

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Aim: This study aims to determine the effect of physical activity on cognitive restraint, uncontrolled eating and emotional eating in individuals with a psychotic disorder.

Methods: Twenty-seven participants with a psychotic disorder (55% male; mean age: 30 ± 7.5 years; Caucasian: 66.

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Article Synopsis
  • This study examined delayed onset muscle soreness (DOMS) in young, healthy women on vegan vs. omnivore diets after intensive resistance training.
  • A total of 54 participants, split evenly between the two diet groups, underwent the same eccentric exercise session and had various muscle health measurements taken before and 48 hours after.
  • Results indicated that vegans showed better muscle sensitivity and strength recovery compared to omnivores, suggesting they may recover from exercise-induced muscle soreness more effectively.
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Despite some reported benefits, there is a low quality of evidence for resistance training (RT) improving metabolic health of individuals with overweight or obesity. We evaluated the impact of RT on body composition, cardiorespiratory fitness (CRF) and physical performance, lipid-lipoprotein profile, inflammation, and glucose-insulin homeostasis in 51 postmenopausal women versus 29 controls matched for age, obesity, and physical activity. Exercised women were further subdivided for comparison of RT effects into those presenting metabolically healthy obesity (MHO) and those with metabolically unhealthy obesity (MUHO) classified according to Karelis and Rabasa-Lhoret or an approach based on adipose tissue secretory dysfunction using the plasma adiponectin(A)/leptin (L) ratio.

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Purpose: To examine the perspectives of wheelchair users with spinal cord injury (WU) regarding their participation in a 16-week walking program using a wearable robotic exoskeleton (WRE); and explore concerns and expectations regarding potential use of this device and intervention in the context of a home or community-based adapted physical activity program.

Method: Semi-structured interviews were conducted using a narrative research, 3 weeks post-intervention. Thematic analysis resulted in 6 themes and 21 subthemes.

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  • A study examined the effects of a 16-week exoskeleton-assisted walking program on bone health in individuals with chronic spinal cord injuries who rely on wheelchairs.
  • Ten participants underwent individualized sessions, focusing on improving lower-extremity weight-bearing activities to counteract osteoporosis and fracture risk.
  • Results indicated significant increases in bone strength markers for the femur and tibia after the program, though no changes were observed in bone remodeling biomarkers.
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It is well established that resistance training increases muscle mass. Indeed, there is evidence to suggest that a single session of resistance training is associated with an increase in muscle protein synthesis in young adults. However, the fundamental mechanisms that are involved in regulating muscle protein turnover rates after an acute bout of physical exercise are unclear.

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Cognitive-motor dual-tasking is a complex activity that predicts falls risk and cognitive impairment in older adults. Cognitive and physical training can both lead to improvements in dual-tasking; however, less is known about what mechanisms underlie these changes. To investigate this, 33 healthy older adults were randomized to one of three training arms: Executive function (EF; = 10), Aerobic Exercise (AE; = 10), Gross Motor Abilities (GMA; = 13) over 12 weeks (1 h, 3×/week).

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Introduction: Anxiety is the most prevalent mental illness worldwide. Physical activity and mindfulness both reduce anxiety. The two are highly related; however, the relative association of physical activity and mindfulness on anxiety has yet to be examined.

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Academic performance is influenced by multitude factors. However, little is known about their relative importance and how they evolve over time. The purpose of the present study was to determine the relative importance of cognitive control, physical, psychological and sociological factors as well as lifestyle habits in predicting academic performance in high school students using cross sectional and longitudinal approaches.

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The purpose of this study was to investigate the accuracy of 3 recently released wrist-worn devices (Apple Watch 6, Polar Vantage V and Fitbit Sense) for heart rate and energy expenditure during various activities. The study population consisted of 60 young healthy individuals (30 men and 30 women; age: 24.9 ± 3.

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Objectives: Studies suggest that cognitive training and physical activity can improve age-related deficits in dual-task performances. However, both of these interventions have never been compared in the same study. This article investigates the improvement in dual-task performance in 2 types of exercise training groups and a cognitive training group and explores if there are specific dual-task components that are more sensitive or more likely to improve following each type of training.

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Background: The purpose of this study was to investigate the relationship between cardiorespiratory fitness, muscle endurance, and test anxiety levels with academic performance in both genders of high school students.

Methods: A total of 545 grade nine students (mean age: 14.1 ± 0.

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Objectives: Mobility is a complex but crucial clinical outcome in older adults. Past observational studies have highlighted that cardiorespiratory fitness (CRF), energy cost of walking (ECW), and cognitive switching abilities are associated with mobility performance, making these key determinants of mobility intervention targets to enhance mobility in older adults. The objective of this study was to compare, in the same design, the impact of three training methods - each known to improve either CRF, ECW, or cognitive switching abilities - on mobility in healthy older adults.

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Medium- or long-term intervention strategies for physical activity practice (PAP) need to be more effective in terms of their implementation by practitioners. The aim of this study was to evaluate the role of a teacher to implement the Team Pentathlon (TP) in order to improve the PAP in primary children. TP is a health education program made to improve PAP of children through individual and collective achievements.

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Numerous classifications are used to discern metabolically healthy obese (MHO) from metabolically abnormal obese (MAO) individuals. The goal of this study was to compare a single phenotype approach, adiposopathy (i.e.

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Background: In wheelchair users with a chronic spinal cord injury (WU), prolonged nonactive sitting time and reduced physical activity-typically linked to this mode of mobility-contribute to the development or exacerbation of cardiorespiratory, musculoskeletal, and endocrine-metabolic health complications that are often linked to increased risks of chronic pain or psychological morbidity. Limited evidence suggests that engaging in a walking program with a wearable robotic exoskeleton may be a promising physical activity intervention to counter these detrimental health effects.

Objective: This study's overall goals are as follows: (1) to determine the effects of a 16-week wearable robotic exoskeleton-assisted walking program on organic systems, functional capacities, and multifaceted psychosocial factors and (2) to determine self-reported satisfaction and perspectives with regard to the intervention and the device.

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Article Synopsis
  • The study examines how body composition affects cognitive abilities in older adults, with a focus on the differences between sexes.* -
  • It involved 155 women and 65 men aged 60 and older, measuring cognition with the Montreal Cognitive Assessment (MoCA) and body composition using dual-energy x-ray absorptiometry (DXA).* -
  • Results showed that higher lean mass, especially in the trunk and arms, is linked to better cognitive scores, but this association was only significant in men, with fat mass showing no cognitive correlation for either sex.*
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Motivational theory-based interventions are known to be effective for increasing physical activity (PA) in the general population but their effects in people with severe mental illness are poorly understood. Therefore, we conducted a meta-analysis on the effect of these interventions on PA and cardiometabolic risk factors. A systematic search of randomized controlled trials through 6 databases was carried out from inception to March 2019.

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Background/objectives: In the general population, there is a popular belief that a vegan diet may be associated with a lower exercise performance due to the lack of certain nutrients in vegan individuals. Thus, the purpose of the present study was to examine endurance and muscle strength differences between vegan and omnivore participants.

Subjects/methods: We studied 56 healthy young lean physically active women (age: 25.

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While a healthy lifestyle would be an asset to people experiencing psychotic disorders, not all mental health professionals provide counselling regarding healthy behaviours, such as physical activity, healthy nutrition, and tobacco cessation. Therefore, the objective of the present study was to investigate the factors associated with health promotion practice (HPP) among mental health professionals. Cross-sectional survey including mental health professionals across the Province of Quebec (Canada).

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Introduction: The purpose of this study was to explore the relationship between interference control and working memory with academic performance in both female and male high school students using a longitudinal design.

Methods: One hundred and eighty-seven grade seventh to ninth students (mean age: 13.1 ± 1.

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Introduction: It is generally accepted that physical activity promotes healthy aging. Recent studies suggest dance could also benefit cognition and physical health in seniors, but many styles and approaches of dance exist and rigorous designs for intervention studies are still scarce. The aim of this study was to compare the effects of Dance/Movement Training (DMT) to Aerobic Exercise Training (AET) on cognition, physical fitness and health-related quality of life in healthy inactive elderly.

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This study aimed to determine if lifestyle habits could predict changes in cognitive control and academic performance in high school students using a longitudinal approach. One hundred and eighty-seven grade seventh to ninth students (mean age: 13.1 ± 1.

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Physical activity plays an important role for achieving healthy aging by promoting independence and increasing the quality of life. However, current guidelines for physical activity in older adults may be difficult to achieve in an older population. Indeed, there is evidence to suggest that increasing exercise intensity in older adults may be associated with greater reductions in the risk of cardiovascular disease and mortality.

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