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254 results on '"Matias, Catarina N."'

4. The effects of melatonin and magnesium in a novel supplement delivery system on sleep scores, body composition and metabolism in otherwise healthy individuals with sleep disturbances

Author

Carlos, Rafael M., primary, Matias, Catarina N., additional, Cavaca, Margarida L., additional, Cardoso, Sofia, additional, Santos, Diana A., additional, Giro, Rita, additional, Vaz, João R., additional, Pereira, Paula, additional, Vicente, Filipa, additional, Leonardo-Mendonça, Roberto C., additional, Ganhão-Arranhado, Susana, additional, Santos, Heitor O., additional, Reiter, Russel J., additional, and Teixeira, Filipe J., additional

Published
2024
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5. Association between muscle‐localized bioelectrical impedance analysis parameters and performance in a multi‐set exercise on the isokinetic dynamometer in young women.

Author

Fukuoka, Aryanne H., Oliveira, Núbia M., Matias, Catarina N., Guariglia, Débora A., Guerra‐Júnior, Gil, and Gonçalves, Ezequiel M.

Subjects
SKELETAL muscle physiology, EXERCISE physiology, PHOTON absorptiometry, T-test (Statistics), RESEARCH funding, BODY composition, BIOELECTRIC impedance, TORQUE, DESCRIPTIVE statistics, THIGH, ATHLETIC ability, EXERCISE tests, PSYCHOLOGY of college students, MUSCLE contraction, REGRESSION analysis
Abstract

This study aimed to verify the relationship between changes in thigh muscle‐localized bioelectrical impedance analysis (ML‐BIA) parameters and performance in a multiple‐set exercise. The sample consisted of 30 female university students (22.1 ± 3.2 years). The ML‐BIA parameters, including localized muscle resistance (ML‐R), reactance (ML‐Xc), and phase angle (ML‐AngF), were evaluated using a tetrapolar bioelectric impedance device operating at a frequency of 50 KHz. The multiple sets protocol was performed with an isokinetic dynamometer. For body composition, total and leg lean soft tissue (LST) were evaluated using dual X‐ray absortiometry. Student's t‐test for paired samples was used to compare the ML‐BIA parameters and thigh circumference pre and postexercise. Linear regression analysis was performed to verify the ∆ML‐PhA as a predictor of peak torque for the three sets alone while controlling for total and leg LST. There were differences in the ML‐R (∆ = 0.02 ± 1.45 Ω; p = 0.001; and E.S = 0.19), ML‐Xc (∆ = 2.90 ± 4.12 Ω; p = 0.043; and E.S = 0.36), and thigh circumference (∆ = 0.82 ± 0.60 cm; p < 0.001; and E.S = 0.16) pre‐ and post‐multiple sets. ΔML‐PhA was a predictor of performance in the first set (p = 0.002), regardless of total and leg LST. However, the ΔML‐PhA lost its explanatory power in the other sets (second and third), and the variables that best explained performance were total and leg LST. The ML‐BIA (ML‐R and ML‐Xc) parameters were sensitive and changed after the multiple sets protocol, and the ΔML‐PhA was a predictor of performance in the first set regardless of the total and leg LST. Highlights: Muscle‐localized bioimpedance analysis (ML‐BIA) is a noninvasive and inexpensive method used to assess specific muscle groups. It is already known that raw parameters, such as Xc, R, and PhA, can reflect cell hydration, volume, and membrane integrity. We demonstrate that these parameters can also reflect acute changes resulting from exercise.The muscle resistance and ML‐Xc values decreased after the exercise protocol, accompanied by increases in thigh circumference. These findings contribute to explaining the phenomenon of local muscle swelling.The ∆AngF accounted for 39%, 28%, and 24% of the variation in the first, second, and third sets of the multiple series exercise. Notably, in the first set, it remained a significant predictor even when controlled for total and leg lean soft tissue. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Game on: A cross-sectional study on gamers’ mental health, Game patterns, physical activity, eating and sleeping habits

Author

Matias, Catarina N., primary, Cardoso, Joana, additional, Cavaca, Margarida L., additional, Cardoso, Sofia, additional, Giro, Rita, additional, Vaz, João, additional, Couto, Pedro A., additional, Dores, Artemisa Rocha, additional, Ferreira, Tiago B., additional, Tinsley, G.M., additional, and Teixeira, Filipe J., additional

Published
2023
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15. Development and Validation of an Anthropometric Equation to Predict Fat Mass Percentage in Professional and Semi-Professional Male Futsal Players

Author

Giro, Rita, primary, Matias, Catarina N., additional, Campa, Francesco, additional, Santos, Diana A., additional, Cavaca, Margarida L., additional, Duque, Pedro, additional, Oliveira, Marco, additional, Matos, Nuno, additional, Vicente, Filipa, additional, Pereira, Paula, additional, Santos, Heitor O., additional, Tinsley, Grant M., additional, and Teixeira, Filipe J., additional

Published
2022
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17. Identifying Athlete Body Fluid Changes During a Competitive Season With Bioelectrical Impedance Vector Analysis.

Author

Campa, Francesco, Matias, Catarina N., Marini, Elisabetta, Heymsfield, Steven B., Toselli, Stefania, Sardinha, Luís B., and Silva, Analiza M.

Subjects
BODY fluid analysis, ADIPOSE tissues, ATHLETES, BODY composition, CYTOSOL, EXERCISE physiology, EXTRACELLULAR fluid, BIOELECTRIC impedance, WATER in the body, LEAN body mass, DESCRIPTIVE statistics, PHOTON absorptiometry
Abstract

Purpose: To analyze the association between body fluid changes evaluated by bioelectrical impedance vector analysis and dilution techniques over a competitive season in athletes. Methods: A total of 58 athletes of both sexes (men: age 18.7 [4.0] y and women: age 19.2 [6.0] y) engaging in different sports were evaluated at the beginning (pre) and 6 months after (post) the competitive season. Deuterium dilution and bromide dilution were used as the criterion methods to assess total body water (TBW) and extracellular water (ECW), respectively; intracellular water (ICW) was calculated as TBW–ECW. Bioelectrical resistance and reactance were obtained with a phase-sensitive 50-kHz bioelectrical impedance analysis device; bioelectrical impedance vector analysis was applied. Dual-energy X-ray absorptiometry was used to assess fat mass and fat-free mass. The athletes were empirically classified considering TBW change (pre–post, increase or decrease) according to sex. Results: Significant mean vector displacements in the postgroups were observed in both sexes. Specifically, reductions in vector length (Z/H) were associated with increases in TBW and ICW (r = −.718, P <.01; r = −.630, P <.01, respectively) and decreases in ECW:ICW ratio (r =.344, P <.05), even after adjusting for age, height, and sex. Phase-angle variations were positively associated with TBW and ICW (r =.458, P <.01; r =.564, P <.01, respectively) and negatively associated with ECW:ICW (r = −.436, P <.01). Phase angle significantly increased in all the postgroups except in women in whom TBW decreased. Conclusions: The results suggest that bioelectrical impedance vector analysis is a suitable method to obtain a qualitative indication of body fluid changes during a competitive season in athletes. [ABSTRACT FROM AUTHOR]

Published
2020
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20. A Novel Plant-Based Protein Has Similar Effects Compared to Whey Protein on Body Composition, Strength, Power, and Aerobic Performance in Professional and Semi-Professional Futsal Players

Author

Teixeira, Filipe J., primary, Matias, Catarina N., additional, Faleiro, João, additional, Giro, Rita, additional, Pires, Joana, additional, Figueiredo, Helena, additional, Carvalhinho, Raquel, additional, Monteiro, Cristina P., additional, Reis, Joana F., additional, Valamatos, Maria J., additional, Teixeira, Vítor H., additional, and Schoenfeld, Brad J., additional

Published
2022
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25. Directly Measured Free Living Energy Expenditure and Anaerobic Performance in Children and Adolescents: 3745 Board #192 June 3 8: 00 AM - 9: 30 AM

Author

Correas-Gómez, Lorena, Alvero-Cruz, José Ramón, Dorado-Guzmán, Manuel, Barrera-Expósito, Jesús, Martín-Sanz, Norma T., Carnero, Sabrina Álvarez, Amil, José Miguez, López-Fernández, Iván, Castro-Gacio, Javier, Giráldez García, Manuel Avelino, Matias, Catarina N., Sardinha, Luis B., and Carnero, Elvis A.

Published
2017
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30. Effectiveness of a lifestyle weight-loss intervention targeting inactive former elite athletes: the Champ4Life randomised controlled trial

Author

Silva, Analiza M, primary, Nunes, Catarina L, additional, Jesus, Filipe, additional, Francisco, Ruben, additional, Matias, Catarina N, additional, Cardoso, Miguel, additional, Santos, Inês, additional, Carraça, Eliana V, additional, Finlayson, Graham, additional, Silva, Marlene Nunes, additional, Dickinson, Stephanie, additional, Allison, David, additional, Minderico, Cláudia S, additional, Martins, Paulo, additional, and Sardinha, Luis B, additional

Published
2021
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33. Phase Angle Is a Marker of Muscle Quantity and Strength in Overweight/Obese Former Athletes

Author

Matias, Catarina N., primary, Campa, Francesco, additional, Nunes, Catarina L., additional, Francisco, Rubén, additional, Jesus, Filipe, additional, Cardoso, Miguel, additional, Valamatos, Maria J., additional, Homens, Pedro Mil, additional, Sardinha, Luís B., additional, Martins, Paulo, additional, Minderico, Cláudia, additional, and Silva, Analiza M., additional

Published
2021
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34. Effectiveness of a lifestyle weight-loss intervention targeting inactive former elite athletes: the Champ4Life randomised controlled trial.

Author

Silva, Analiza M., Nunes, Catarina L., Jesus, Filipe, Francisco, Ruben, Matias, Catarina N., Cardoso, Miguel, Santos, Inês, Carraça, Eliana V., Finlayson, Graham, Silva, Marlene Nunes, Dickinson, Stephanie, Allison, David, Minderico, Cláudia S., Martins, Paulo, and Sardinha, Luis B.

Subjects
LIFESTYLES, RESEARCH, ATHLETES, EVALUATION research, HEALTH surveys, COMPARATIVE studies, RANDOMIZED controlled trials, QUALITY of life, WEIGHT loss, QUESTIONNAIRES
Abstract

Objectives: Many athletes struggle in managing the end of their career, often gaining weight and adopting unhealthy lifestyles. Lifestyle programmes targeting former athletes who have gained substantial fat mass (FM) postsports career are lacking. We studied the effects of the Champ4Life programme on body composition and other health-related outcomes in former elite athletes with overweight or obesity.Methods: Ninety-four former athletes(42.4±7.3 y, 34.0% female) were recruited and randomly assigned to either an intervention group (IG; n=49) or a control group (CG; n=45). The IG attended 12 educational sessions addressing physical activity, weight management and nutrition. They also had a nutrition appointment aimed to prescribe a moderate caloric deficit(~300-500 kcal/day). Dual-energy X-ray absorptiometry was used to assess body composition. The Short-Form Health Survey-36 questionnaire was used to measure general health-related quality of life. Blood samples were collected to assess cardiometabolic health parameters.Results: At 12 months, the IG lost more weight (estimated difference (ED)=-5.3 kg; -6.9 to -3.8), total FM (ED=-4.1 kg; -5.4 to -2.8) and abdominal FM (ED=-0.49 kg; -0.64 to -0.33) than did the CG (p's<0.001). Cardiometabolic health markers also improved significantly (p<0.05) more in the IG at 12 months (insulin (ED=-4.9 μU/mL;-8.0 to -1.8); homoeostatic model assessment (ED=-1.2; -2.1 to -0.4); total cholesterol (ED=-21.8 mg/dL; -35.4 to -8.2); low-density lipoprotein (ED=18.2 mg/dL;-29.2 to -7.1)), as did quality-of-life dimensions (physical functioning (ED=11.7; 6.5 to 16.9); physical role (ED=17.6; 2.1 to 33.0); general health (ED=19.4; 11.4 to 27.4); vitality (ED=13.3; 5.3 to 21.3) and mental health (ED=12.3; 4.1 to 20.6)).Conclusions: The Champ4Life programme was effective in substantially reducing total and abdominal FM while preserving fat-free mass and improving health-related markers. These findings will enable evidence-based decisions when implementing lifestyle interventions targeting retired elite athletes.Trial Registeration Number: NCT03031951. [ABSTRACT FROM AUTHOR]

Published
2022
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43. The Predictive Role of Raw Bioelectrical Impedance Parameters in Water Compartments and Fluid Distribution Assessed by Dilution Techniques in Athletes

Author

Francisco, Ruben, primary, Matias, Catarina N., additional, Santos, Diana A., additional, Campa, Francesco, additional, Minderico, Claudia S., additional, Rocha, Paulo, additional, Heymsfield, Steven B., additional, Lukaski, Henry, additional, Sardinha, Luís B., additional, and Silva, Analiza M., additional

Published
2020
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44. Champ4life Study Protocol: A One-Year Randomized Controlled Trial of a Lifestyle Intervention for Inactive Former Elite Athletes with Overweight/Obesity

Author

Silva, Analiza M., primary, Nunes, Catarina L., additional, Matias, Catarina N., additional, Jesus, Filipe, additional, Francisco, Rúben, additional, Cardoso, Miguel, additional, Santos, Inês, additional, Carraça, Eliana V., additional, Silva, Marlene N., additional, Sardinha, Luís B., additional, Martins, Paulo, additional, and Minderico, Cláudia S., additional

Published
2020
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45. Are predictive equations a valid method of assessing the resting metabolic rate of overweight or obese former athletes?

Author

Jesus, Filipe, primary, Nunes, Catarina L., additional, Matias, Catarina N., additional, Francisco, Ruben, additional, Carapeto, Bárbara, additional, Macias, Hugo, additional, Müller, Diogo, additional, Cardoso, Miguel, additional, Valamatos, Maria J., additional, Rosa, Gil, additional, Sardinha, Luís B., additional, Martins, Paulo, additional, Minderico, Cláudia S., additional, and Silva, Analiza M., additional

Published
2020
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46. The effects of phosphatidic acid on performance and body composition - a scoping review.

Author

Teixeira, Filipe J., Tavares, Nelson, Matias, Catarina N., and Phillips, Stuart M.

Subjects
BODY composition, ONLINE information services, SPORTS nutrition, SYSTEMATIC reviews, LEAN body mass, HEALTH status indicators, DIETARY supplements, BODY movement, PHOSPHOLIPIDS, LITERATURE reviews, MEDLINE, ANABOLIC steroids, ATHLETIC ability
Abstract

Phosphatidic acid (PA) is a lipid mediator proposed to increase muscle protein synthesis via direct stimulation of the mammalian target of rapamycin (mTOR) and may act as an anabolic supplemental aid. Evidence on the effectiveness of PA as an anabolic supplement is equivocal. We aimed to systematically assess the effect of PA on performance and body composition. Due to the small number of studies, this is a scoping review. A comprehensive search was performed in Pubmed, SPORTDiscus and Web of Science, from the 1 January 2010 to the 31 August 2020. Our search retrieved 2009 articles, which when filtered, resulted in six studies, published between 2012 and 2019, which were analysed further. Five studies were performed in adult male populations and one in an elderly male population. From these, three studies suggested no effect of PA on lean body mass , while the remaining showed a possible positive effect (body composition and performance improvements). In one of these, the supplement included other potentially anabolic substances, precluding an isolated effect of PA. After a thorough analysis of the studies included, the evidence does not support the supplementation with PA to increase performance or improve body composition in young or elderly men. [ABSTRACT FROM AUTHOR]

Published
2022
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