Percorrer por autor "Saldanha, Laissa de Sousa"
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- Estimativa do VO2 máximo através do 20m multistage fitness test em adolescentes e jovens adultos, com condução luminosa da velocidade de corrida: um estudo de validação criterialPublication . Saldanha, Laissa de Sousa; Lopes, Vitor P.Dentre as componentes da aptidão física, a aptidão cardiorrespiratória se destaca como sendo muito relevante, seja em atletas de alto rendimento, dentro das diversas modalidades desportivas, quanto em indivíduos não atletas. A medida padrão de avaliação da aptidão cardiorrespiratória é o consumo máximo de oxigénio (VO2máx), normalmente realizada em laboratório. No entanto, avaliar o VO2máx de forma direta demanda custo financeiro alto, pessoal especializado e um tempo excessivo. Vários testes de terreno têm sido desenvolvidos para substituir a avaliação direta do VO2máx, dentre eles destaca-se o 20m multistage fitness test. Objetivo O objetivo do presente estudo foi realizar a validação criterial (concorrente e preditiva) do 20m multistage fitness test, utilizando o procedimento habitual de condução da velocidade de corrida, os “bips” sonoros e a condução luminosa utilizando o PACETECH com a estimativa do VO2máx através da avaliação direta do consumo de O2. Métodos Participaram do presente estudo, 41 voluntários com idades compreendidas entre 12 e 50 anos, de ambos os sexos, que foram submetidos a realização de três testes para avaliação da potencia aeróbia. No primeiro teste, o VO2máx foi estimado através da avaliação direta do consumo de O2, com a máquina Fitmate Pro, em um teste submáximo em tapeterolante. No segundo teste, os avaliados realizaram o teste vaivém tradicional, por “bips” sonoros. No terceiro teste, os avaliados realizaram o teste vaivém com condução luminosa, utilizando o PACETECH. Para a estimativa do VO2máx nas duas situações de terreno, foram utilizadas as equações matemáticas de Léger (17). Os resultados foram analisados para totalidade da amostra, por sexo e por grupo etário. Toda a análise estatística foi realizada com o software estatístico SPSS versão 28.0. Resultados Os resultados deste estudo mostram que os valores apresentados relativos à validação concorrente, entre os valores de VO2máx estimados através da avaliação direta do O2 e a distância percorrida nos testes de terreno com condução luminosa e com condução sonora, são todas significativas com exceção das obtidas no sexo feminino, quer na condução sonora quer na condução luminosa, e nos adolescentes na condução luminosa. Com a exceção dos valores de correlação obtidos pelos adultos, todos os valores de correlação entre o VO2máx e a distância percorrida são superiores no teste com condução sonora, apresentando valores moderados a altos. Osresultados da análise de correlação referentes à totalidade da amostra, indicaram uma correlação moderada para ambos os métodos, condução sonora e luminosa indicando não existir diferenças significativas entre as correlações entre os resultados obtidos nos três testes. Conclusão Podemos concluir que não existem diferenças significativas entre as correlações entre osresultados obtidos como Fitmate Pro e cada uma das duas condições de condução da velocidade de corrida no 20m multistage fitness test. Indicando um índice de validação concorrente moderado para ambos os métodos, condução sonora e luminosa. Ambos os testes de terreno (com condução sonora e com condução luminosa) apresentaram estimativas superestimadas de VO2máx comparativamente às avaliações realizadas com o Fitmate Pro. Confirmando a hipótese apresentada neste estudo, independentemente do sexo e da idade, no teste de terreno por condução luminosa os participantes percorreram uma distância superior comparativamente à distância percorrida por condução sonora. Considerando os resultados alcançados neste estudo parece-nos necessário que outras pesquisas sejam realizadas, com objetivo de investigar de forma aprofundada a eficiência do método luminoso.
- Physical activity, strength training and nutritional support in patients with metabolic syndrome from a Northeaster Portuguese primary health care: a pilot community intervention programPublication . Bragada, José A.; Teixeira, José Eduardo; Bragada, João P.; Duarte, José Alberto; Pontes, João H.; Saldanha, Laissa de Sousa; Magalhães, PedroMetabolic syndrome (MetS) is a common metabolic disorder characterized by a cluster of factors such as central obesity, dysglycemia, dyslipidaemia and hypertension (1). The combination of these factors increases the risk of metabolic and cardiovascular diseases. The prevalence of MetS has been increasing in the Portuguese population (2). Primary prevention using physical activity (PA), exercise and healthy lifestyles seems to be adequate
- Physical activity, strength training and nutritional support in patients with metabolic syndrome from a Northeaster Portuguese primary health care: a pilot community intervention programPublication . Bragada, José A.; Teixeira, J.A.; Bragada, João P.; Duarte, Carlos Manuel Teixeira; Pontes, João H.; Saldanha, Laissa de Sousa; Magalhães, PedroThe prevalence of Metabolic Syndrome (MetS) has been increasing exponentially in the Portuguese population. Primary prevention using physical activity (PA), exercise and healthy lifestyles seems to be limited. Thus, current study aims to present the design and preliminary findings of a pilot community intervention for patients with MetS. Methods: A randomized controlled trial was conducted between April and July 2022 with patients with MetS, from a Northeaster Portuguese primary health care. Eight participants completed the three-month intervention program, 6 women (51.0±6.4 years) and 2 men (46.5±4.9 years). The program included: (1) evaluation and prescription of PA (steps/day and floors/day); (2) nutritional and dietary support; (3) strength training sessions; (3) blood testing; (4) anthropometric and body composition assessment. A pre- and post-intervention follow up was conducted. Garmin®F 745 were used for PA prescription and assessment. PA targets per day were: number of steps ≥10 000; uphill walking ≥10 floors; and minutes of intensity ≥150 per week. Nutritional and dietary evaluation was recorded by completing the food frequency questionnaire with subsequent recommendation of changes to healthy diet. The designed strength training program was: (i) frequency of 2x/week; (ii) 8 to 10 exercises, in order to work the main muscle groups; (iii) 2 sets of 10 to 12 repetitions; (iv) 60 to 70% of one maximum repetition. Blood samples evaluated glycated hemoglobin (HbA1c), fating glucose (FG), triglycerides (TG), high-density lipoprotein (HDL) cholesterol, total cholesterol (TC), systolic (SBP) and diastolic blood pressure (DBP). Body weight (kg), lean body mass (kg) and fat mass percentage (%) was evaluated by bio-impedance scale (Tanita MC 780-P MA®). MetS parameters was defined by joint interim statement (JIS) criteria (Alberti et al, 2009). Results: Regarding PA parameters at the end of the three-month program, the average number of daily steps was 11 818, the number of daily floors was 15.35 and moderate to vigorous PA was 253 minutes/week. An improvement in pre- and post-intervention blood concentrations and pressure was observed, namely in HbA1c (-7.4%±15.2), FG (-4.9%±14.4), HDL (-4.8%±9.7), TC (-1.9%±19.9), SBP (-15.6%±10.7) and DBP (-12.7%±9.3). All participants registered a weight loss (-3.4%±2.0), with an increase in lean mass (-4.5%±2.0) and a decrease in fat mass (-8.7%±6.3). Except for one participant, all improved in heart rate recovery after exercise (19.3%±28.2), suggesting an improvement in cardiovascular capacity. Conclusions: The effect of the implemented pilot community intervention program was greater in the participants who followed the program more rigorously. Additionally, the strength training may have been important in increasing lean body mass. The inclusion of PA, strength training and nutritional support in primary health care, through a supervised program, seems to be a key strategy to reduce the risk associated with MetS and delay the complications associated with cardiometabolic diseases.
- Prevalence of Type 2 Diabetes Risk in a Higher Education Community of North-Eastern Portugal: a Prospective Cross-sectional Observational AnalysisPublication . Duarte, Carlos Manuel Teixeira; Magalhães, Pedro; Saldanha, Laissa de Sousa; Teixeira, José Eduardo; Bragada, José A.Type 2 diabetes (T2D) is considered one of the most prevalent diseases worldwide. The aim of this study was to analyse the risk of developing T2D in a higher education community of Bragança, North-Eastern Portugal. The observational, cross-sectional and prospective sample comprised 3021 individuals, aged between 18 and 64 years old, of whom 1759 were women (mean age 24.16 ± 8.80 years) and 1263 were men (mean age 23.37 ± 8.70 years). The Finnish Diabetes Risk Score (FINDRISC) questionnaire was employed to estimate the risk of developing T2D over the next 10 years. The results indicated that approximately 37 (1%) participants in the sample exhibited a high risk of developing T2D, 117 (4%) participants exhibited a moderate risk, 660 (22%) participants exhibited a slight risk, and 2206 (73%) participants exhibited a low risk. A higher T2D risk was observed in the staff group in comparison with the other groups (p < 0.001). Furthermore, body mass index (BMI) and waist circumference (WC) were the variables that most contributed to the increased risk of developing T2D (X2 = 1034.5; p < 0.001). Conclusions: In conclusion, the study reported a low T2D risk for the higher education community of Bragança in the Portuguese North-Eastern region. However, the risk of T2D was found to be higher in the staff group than in the student group. The FINDRISK questionnaire may be applied for the early diagnosis of T2D risk factors.
- Sensibility and specificity analysis for waist to height ratio, body mass index and waist circumference as a screening criterion for metabolic syndrome in an adult North East Portuguese populationPublication . Teixeira, José Eduardo; Bragada, José A.; Bragada, João P.; Coelho, Joana C.M.M.; Pinto, Isabel; Reis, Luís P.; Saldanha, Laissa de Sousa; Duarte, Carlos Manuel Teixeira; Magalhães, PedroObesity is a central component of Metabolic Syndrome (MetS) and a major public health concern. A harmonizing MetS definition was developed to aggregate the different criteria used by the umbrella organizations, however there is still controversy over the most sensitive and specific parameter to characterize each MetS component
- Sensibility and specificity analysis for waist-to-height ratio, body mass index and waist circumference as a screening criterion for metabolic syndrome in an adult North-East Portuguese populationPublication . Teixeira, José Eduardo; Bragada, José A.; Bragada, João P.; Coelho, Joana C.M.M.; Pinto, Isabel; Reis, Luís P.; Saldanha, Laissa de Sousa; Duarte, Carlos Manuel Teixeira; Magalhães, PedroObesity is a central component of Metabolic Syndrome (MetS) and a major public health concern. A harmonizing MetS definition was developed to aggregate the different criteria used by the umbrella organizations, however there is still controversy over the most sensitive and specific parameter to characterize each MetS component. The aim of this study was to compare the sensibility and specificity for waist-toheight ratio (WHtR), body mass index (BMI) and waist circumference (WC) to discriminate subjects with and without MetS in an adult North-East Portuguese population. Methods: A cross-sectional retrospective analysis was conducted between January 2019 and December 2020 from patients’ clinical records of two primary health care centers in a North-East Portuguese region. A total of 6570 individuals aged 18–102 years were included for analysis, among which 3865 women (57.37±18.67 years) and 2705 men (59.97±16.76 years). MetS was defined according to HARM2009 statement set by Alberti et al. (2009). Standardized cut-off points were used to measure WHtR (≥0.5), BMI (≥30 kg/m2) and WC (>88 cm in women and >102 cm in men). A binary logistic regression was performed for the areas under receiver operating characteristic curves (AUC) and adjusted odd ratios (OR) with a 95% confidence interval (CI). Results: MetS was present in 3,581 (54.51%) subjects, where 1,914 (49,52%) were women and 1,667 (61.63%) men. AUC demonstrated that WHtR was significantly more powerful than WC and BMI (p<0.05) for screening MetS (AUCWHtR = 0.785, 95% CI: 0.774–0.796; AUCWC = 0.768, 95% CI: 0.757–0.779; AUCBMI = 0.751, 95% CI: 0.703–0.796). Men are 1.53 (95% CI: 1.37–1.72, p<0.001) times more likely of having MetS compared to women. Also, the discriminative power of the three criteria for predicting MetS is higher in men (AUCWHtR = 0.795, 95% CI: 0.778–0.812; AUCWC = 0.783, 95% CI: 0.766–0.801; AUCBMI = 0.740, 95% CI: 0.722–0.759) than women (AUCWHtR = 0.782, 95% CI: 0.768–0.797; AUCWC = 0.760, 95% CI: 0.744–0.775; AUCBMI = 0.699, 95% CI: 0.683–0.716). However, WHtR is still the most powerfull screening criterion for MetS in both sexes. Conclusion: Adjusting individual’s waist circumference to height revealed a greater sensitivity and specificity for MetS screening than isolated WC and BMI. Current research suggests that WHtR is as a better predictor for MetS, specifically in its obesity component.