Jonathan Tremblay

Université de Montréal | UdeM · School of Kinesiology and Exercice Science

Purpose: This study compared the effects of linear (LP) and non-linear (NLP) training periodization on resting cognitive functions, neurotrophic biomarkers (brain-derived neurotrophic factor [BDNF], insulin-like growth factor-1 [IGF-1]), and cathepsin-B in patients with coronary artery disease (CAD). Methods: Forty-four patients with CAD reporte...

Introduction : La performance à l'exercice fait référence à la réalisation d'une tâche et peut être évaluée en mesurant la puissance, la vitesse, le travail ou la quantité d'énergie dépensée (Briand 2023). Chez l'athlète, l'optimisation de la performance se traduit par exemple par le fait de courir plus rapidement ou de battre un record. Chez le pa...

Objective Studies have shown changes in the human brain associated with physical activity and cardiorespiratory fitness (CRF). The effects of CRF on cortical thickness have been well-described in older adults, where a positive association between CRF and cortical thickness has been reported, but the impact of sustained aerobic activity in young adu...

Physical activity (PA) has been shown to benefit various cognitive functions and promote neuroplasticity. Whereas the effects of PA on brain anatomy and function have been well documented in older individuals, data are scarce in young adults. Whether high levels of cardiorespiratory fitness (CRF) achieved through regular PA are associated with sign...

Purpose: To evaluate whether sleep quantity and quality of professional hockey players is affected by external training load (TL), their perception of well-being, and contextual factors associated with match participation. Methods: Fifty male athletes were monitored daily during the 28 weeks of the regular season using well-being and sleep surve...

Introduction Ice-hockey players develop asymmetrical movement patterns by favoring rotation through the torso and hips while passing and shooting. Interlimb asymmetries have been shown to affect repeated sprint ability, vertical and horizontal countermovement jump power, and general athletic performance. Isometric hip strength and the countermoveme...

Background Coronary heart disease (CHD) is frequently associated with cognitive impairment (CI), whereas physical exercise may improve cognition. To date, the cognitive profile of physically active CHD patients remains poorly understood. Physical activity and cognition has been associated with neurotrophic biomarkers that are positively modulated b...

The workplace has been suggested as a good setting for the promotion of healthy lifestyles. This article examines the impact of Activate Your Health programme, provided over an average of 1.35 years, on employee health and lifestyle habits (actual and intention to improve). Companies selected one of the programme's four options (number of intervent...

High-Intensity Interval Training (HIIT) is a time-efficient training method suggested to improve health and fitness for the clinical population, healthy subjects, and athletes. Many parameters can impact the difficulty of HIIT sessions. This study aims to highlight and explain, through logical deductions, some limitations of the Skiba and Coggan mo...

Background. Individuals with coronary heart disease (CHD) exhibit cognitive deficits and cerebrovascular dysfunctions, and are at higher risk of developing dementia. Cognitive function in individuals with CHD has never been studied during acute aerobic exercise. Given the increasing popularity of training at high peak power output (PPO), its impact...

Objectives: To explore employees' intentions to improve lifestyle habits, investigate the health and lifestyle-related predictors of these intentions, and how it translated into behavioral improvement. Methods: Employees participating in the Activate Your Health WHPP completed a questionnaire of their demographics, health-related variables, as w...

Selon les lignes directrices chez les patients coronariens, un programme d’entrainement aérobie doit combiner de l’entrainement continu à intensité modérée (ECIM) et par intervalles à haute intensité (EIHI), en étant progressif et structuré (périodisation linéaire [PL]), et manipulé selon les principes FITT qui incluent la fréquence, l’intensité, l...

Contexte : Environ 14 % des employés qui prennent part à un programme de promotion des saines habitudes de vie en milieu de travail (PPST) démontrent une amélioration de leurs comportements. Certaines théories postulent que l’intention serait associée à ce changement de comportement. Objectifs : 1) Examiner les intentions des employés prenant part...

Background Worldwide, most adolescent girls do not meet physical activity (PA) recommendations and very few PA programs are tailored specifically towards them. Even fewer information exists about the long-term effects of such programs. Some Canadian schools have implemented the FitSpirit PA intervention designed specifically for girls aged 12 to 17...

Abstract Background Taste and appreciation of sports drinks can affect perceived exertion during exercise. Anecdotal evidence shows that maple products are regularly consumed by recreational and professional athletes but very few studies have reported on their effects during exercise. The purpose of the current study is to report the taste, appreci...

More than 50% of Canadian workers live with at least one chronic disease, most of which can be prevented by adopting healthy lifestyle habits. This quasi-experimental study examined the impact of one implementation cycle of a workplace healthy lifestyle promotion program called Activate Your Health on outcomes related to employees’ health and lifes...

We compared the impacts of linear (LP) and nonlinear (NLP) aerobic training periodizations on left ventricular (LV) function and geometry in coronary artery disease (CAD) patients. Thirty-nine CAD patients were randomized to either a 3-month isoenergetic supervised LP or NLP. All underwent standard echocardiography with assessment of 3D LV ejection...

Adolescence is a crucial time in the development and maintenance of lifestyle habits. Interventions to improve health-related behaviors are important, including those that can contribute to an increase in physical activity (PA). During adolescence, PA typically decreases with age, particularly in girls. The FitSpirit program offers services that he...

Allard, P, Martinez, R, Deguire, S, and Tremblay, J. In-season session training load relative to match load in professional ice hockey. J Strength Cond Res XX(X): 000-000, 2020-The aim of this study was to describe match load and intensity across player positions and match periods, the distribution of pregame training load and intensity over traini...

Allard, P, Martinez, R, Deguire, S, and Tremblay, J. In-season session training load relative to match load in professional ice hockey. J Strength Cond Res XX(X): 000-000, 2020-The aim of this study was to describe match load and intensity across player positions and match periods, the distribution of pregame training load and intensity over traini...

Dans les dernières années, les programmes de promotion de la santé ou de saines habitudes de vie sont devenus une option fort intéressante à la fois pour les employés et les employeurs. À cet effet, les membres du Comité scientifique de Kino-Québec ont récemment diffusé un document visant à sensibiliser la population sur l’importance de la pratique...

Dans les dernières années, les programmes de promotion de la santé ou de saines habitudes de vie sont devenus une option fort intéressante à la fois pour les employés et les employeurs. À cet effet, les membres du Comité scientifique de Kino-Québec ont récemment diffusé un document visant à sensibiliser la population sur l’importance de la pratique...

Background: We aimed to compare: 1) two different periodized aerobic training protocols (linear [LP] vs. non-linear [NLP]) on the cardiopulmonary exercise response in patients with coronary heart disease (CHD); 2) the proportion of responders between both training protocols.Design: A randomized controlled trial Methods: A total of 39 CHD patients c...

BACKGROUND: A greater training load variation (non-linear periodization [NLP]) is often suggested to bring greater training adaptation in athletes compared to the traditional linear periodization (LP) proposed in most of the guidelines. Recently, NLP was used in patients with chronic obstructive pulmonary disease but was never studied in coronary a...

DOI: 10.1152/japplphysiol.00496.2019

Background: The aim of this study was to compare the effects of carbohydrate (CHO) drinks (6% per volume) sweetened with maple (syrup or sap) to a commercial sports drink, glucose, and a control solution (water) on cognitive flexibility during high-intensity intermittent exercise. Methods: Eighty-five active men completed six 3-min bouts at 95%...

Background: Workplace Health Promotion Programs (WHPP) have been shown to be an efficient way of improving workers’ health. These programs can be incorporated in the worker’s daily schedule and improve their productivity at work. Improving employees’ health also benefits the employers by increasing their return on investment and lowering healthcare...

The objective of the present study was to assess the effect of unilateral lower-body-conditioning muscle contractions during multiple sets of fatiguing repeated jumps in elite athletes. Five elite short-track speed-skating athletes performed 9 sets of 6 maximal consecutive jumps on 2 separate occasions: with (COND) and without (CTRL) preliminary vo...

PURPOSE: High intensity interval training (HIIT) can be used complementary as compared to guidelines-based moderate intensity continuous training (MICT) in patients with coronary heart disease (CHD). Training periodization, a mix of HIIT and MICT is commonly used in athletes to increase training load and to improve cardiorespiratory fitness (measur...

Objectives: To evaluate the diagnostic validity of the Kerlan-Jobe orthopedic clinic shoulder and elbow score (KJOC) and the Closed kinetic upper extremity stability test (CKCUEST) to assess functional impairments associated with shoulder injury in overhead female athletic populations. Design: Cross-sectional design. Methods: Thirty-four synch...

The benefits of physical exercise on brain function and its metabolism are well documented, and it is established that acute aerobic exercise could enhance executive function. The aim of this study was to report the effect of exercise intensity during acute intermittent exercise (IE) on executive function and heart rate outcomes. Twenty male subjec...

Purpose: Nitrate supplementation can increase tolerance to high-intensity work rates, however limited data exist on the recovery of performance. We tested whether 5 days of nitrate supplementation could improve repeated time-trial performance in speed skating. Methods: Using a double-blind, placebo-controlled, crossover design, 9 international-l...

L’incidence de blessures à l’épaule étant souvent multifactorielle, il n’existe pas à ce jour de méthode d’évaluation simple pour identifier les athlètes à risque. Les professionnels de la santé utilisent donc divers outils d’évaluation (dynamomètres, questionnaires, tests fonctionnels, etc.) pour identifier les athlètes à risque de blessure ou pla...

To this day, how shoulder muscles react to a strong fatigue stimulus during dynamic shoulder rotations remains unknown. The aims of this study were to assess the effect of repeated maximal internal-external isokinetic shoulder rotations on shoulder strength and muscle activity. Twenty-four individuals completed a 50-repetition fatiguing isokinetic...

The aims of this study were to investigate the differences in peak muscle activity and recruitment patterns during high- and low-velocity, concentric and eccentric, internal and external isokinetic shoulder rotations. Electromyographic activity of the rotator cuff and eight superficial muscles of the shoulder girdle was recorded on 25 healthy adult...

In recent years, it has been shown that spacing training sessions by several hours allows the consolidation of motor skills in the brain, a process leading to the stabilization of the skills and, sometimes, further improvement without additional practice. At the moment, it is unknown whether consolidation can lead to an improvement in performance w...

Abstract: Background and objectives: There is a direct link between aerobic fitness (VO2peak) and cognitive performance, especially with executive functions in coronary heart disease (CHD) patients. No study has investigated if maximal exercise hemodynamic parameters would mediate cognitive functions in CHD patients. The aim of this study was: 1) t...

Background: Clinical electromyographic (EMG) studies of the upper limb usually involve slow and submaximal exercises although basic overhead sport skills typically require maximal and high velocity actions. Those high demanding actions are repeated many times during training and competition, which can create fatigue, movement compensations and inju...

PURPOSE: One of the first assumption was that remote ischemic preconditioning (RIPC) acts on different mechanisms such as the stimulation of adenosine and the opening of mitochondrial ATP-sensitive potassium channels and therefore could result in a better oxygen distribution in sports performance. Even if RIPC did result in better time-trial perfor...

Chronic shoulder injuries represent a significant challenge to swimming performance given the important contribution of the upper limb during propulsion. Strength imbalances between internal and external rotators of the shoulder as well as lack of dynamic muscle control of the scapula have been suggested as factors explaining the occurrence of shou...

Physical activity is a viable option to increase energy expenditure and fat oxidation, which are both relevant to the obese child at an increased risk of metabolic complications. Many studies report that the rate of fat oxidation during maximal exercise is higher in obese versus non-obese youth. However, these studies have rarely taken into account...

Les principaux substrats oxydés à l’exercice, soient les glucides, les lipides et les protéines, ne contribuent pas tous au même niveau à la fourniture d’énergie lors de l’effort prolongé. De plus, le glucose peut provenir de différentes sources endogènes (muscle, foie) et exogènes. Plusieurs facteurs peuvent influencer leur contribution respective...

To compare the effects of a high-CHO diet (80% CHO) and glucose ingestion (2 g x kg(-1)) during exercise (120 min, 57% VO2max) on fuel selection in women taking (W+OC) or not (W-OC) oral contraceptives and in men (six in each group). Substrate oxidation was measured using indirect respiratory calorimetry in combination with a tracer technique to co...

To compare fuel selection during prolonged arm (AE) and leg exercise (LE) with water or glucose ingestion. Ten subjects (VO2max: 4.77 +/- 0.20 and 3.36 +/- 0.15 L x min(-1) for LE and AE, respectively) completed 120 min of LE and AE at 50% of the mode-specific maximal power output (353 +/- 18 and 160 +/- 9 W, respectively) with ingestion of water (...

The validity of five brands of cycle ergometers was evaluated by the comparison of the Vo(2) requirements at different displayed power. Five physically active men performed a continuous incremental exercise test on five ergometers (Ergomeca, Lifecycle, Monark, Polar S710 and CompuTrainer). The latter was also compared with a standard dynamometer in...

The purpose of the present experiment was to compare 13CO2 recovery at the mouth, and the corresponding exogenous glucose oxidation computed, during a 100-min exercise at 63 +/- 3% maximal O2 uptake with ingestion of glucose (1.75 g/kg) in six active male subjects, by use of [U-13C] and [1,2-13C]glucose. We hypothesized that 13C recovery and exogen...