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- Associação entre a auto perceção corporal e a atividade física habitual em criançasPublication . Cassiano, Jonatas; Sá, Carla; Rodrigues, Luis Paulo; Lopes, Vitor P.O objetivo do presente estudo foi analisar a associação entre a auto perceção corporal e a atividade física (AF) habitual em crianças. Foram avaliadas 122 crianças de ambos os sexos repartidas em dois grupos etários, 6 a 10 anos e 11 a 13 anos. A auto perceção corporal foi avaliada com o perfil de auto perceção corporal para crianças e jovens (PSPP-CY). A AF habitual foi avaliada através de pedometria, tendo sido colocado em cada criança um pedómetro que recolheu os passos ao longo de uma semana completa. Para análise foi considerada a média diária de passos. A associação foi determinada através do coeficiente de correlação de Spearman calculado em cada grupo etário e sexo. Os valores de correlação variam de acordo com o sexo o grupo etário e a dimensão da PSPP-CY. Para o indicador global “Auto Estima Corporal”, a correlação é, respetivamente no grupo etário 6 a 10 anos e 11 a 13 anos, de 0,30 e 0,24 nos meninos e de 0,42 e 0,10 nas meninas. Estes resultados são indicadores que uma boa auto perceção corporal poderá ser um fator importante na quantidade de AF habitual das crianças.
- Omega-3 and omega-6 consumption in a sample group of portuguese womenPublication . Lucas, C.; Simões, Laurinda; Sá, CarlaThe present study had as its main objective the evaluation of the consumption of polyunsaturated fatty acids (PUFA), omegas 3 (n-3) and 6 (n-6). The sample consisted of six women over 40 years old, living in Lisbon. A cross-sectional analysis of the consumption of omega-3 and 6 was made through the application of a 3-day food diary (2 weekdays and 1 weekend day), and later analysis of the data by the FoodProcessor program. The results showed that there was an inadequate intake of n-3 and n-6 PUFAs. Further analysis showed that n-6 intake was high (84%) in comparison to n-3 intake (16%), and the ratio of n-6 and n-3 intake was not in line with recommendations. The results of this study suggest that the sample presents an inadequate intake of n-3 and n-6 PUFA, and it is necessary to emphasize the importance of nutritional programs in order to reduce the probability of occurrence of certain pathologies associated with imbalance of n-6 / n-3 intake. © 2019 ALIES. All rights reserved
- The use of wearable technology in a sample of Portuguese populationPublication . Sá, Carla; Lopes, Vitor P.Wearable technology is increasing and have radically altered how we live our lives today. Personal wearable systems offer real-time feedback, (Lamont, Daniel, Payne, & Brauer, 2018) which enable people to evaluate several parameters: range of movement, meters or number of steps in a day, walking speed, burnt calories, heart rate, and sleeping hours and also give feedback on physical activity (Lamont et al., 2018). Despite the potential and the wide range of wearables available, there is little knowledge about the interest, usage and preferences for using wearables (Stephanie Alley & Mitch J Duncan, 2016), even the efficacy for using wearables in physical activity promotion. This study aimed to investigate the use of wearable technology in Portugal, in particular how often people use it and how they use it to monitor exercise/physical activity.
- Sitting time and body mass índex in a sample of portuguese university studentsPublication . Vasconcelos, Carlos; Fernandes, José Carlos; Fernandes, Isabel P.; Fernandes, Bóris dos Santos; Rocha, Carina; Sá, CarlaINTRODUCTION: Overweight and obesity are serious health problems in Portugal, with physical, psychological and social consequences that affects individuals’ quality of life. In university students’ daily routine, sitting is a predominant behavior for many hours per day, increasing sedentary time among these individuals. OBJECTIVES: The purpose of this study was to analyze the association between the time spent sitting in an ordinary weekday and body mass index in a sample of Portuguese university students. METHODOLOGY: This was a cross-sectional study performed in 72 Portuguese university students (38 female; 22.1 ± 3.9 years of age). The time spent sitting in an ordinary weekday was assessed with the International Physical Activity Questionnaire (short last week version). Body mass index was calculated through self-reported body weight (kg) and body height (m) data with the formula body weight (kg) / body height (m)2. RESULTS: The time spent sitting in an ordinary weekday was 342.1 ± 192.7 minutes. The mean value of body mass index was 22.9 ± 2.9 kg/m2. Through the use of Pearson correlation, we determine that the association between sitting time and body mass index is positive and significant (r = 0.511; p < 0.001). CONCLUSIONS: Our study revealed that there was significant association between sitting time and body mass index in this sample of Portuguese university students. Although the cross sectional design of our study do not allow to establish causality, it suggests the need of effective strategies to reduce time sitting in this individuals.
- Energy and macronutrient intake and dietary pattern among Universidade Lusófona students – a pilot studyPublication . Marcos, Joana; Carriço, Raquel; Tavares, Nelson; Sá, CarlaFood choices for adopting a healthy lifestyle are influenced by a set of factors. Early adulthood and university entry are crucial for the development of eating habits that will be decisive in quality of life. In Portugal, there are few studies that assess the nutritional status of university students. The main objective of this study, as a pilot study, was to characterize the dietary habits of university students at Universidade Lusófona in Lisbon, Portugal. This cross-sectional descriptive study included university students, aged between 18 and 28 years old. Anthropometric data were collected, and body mass index was calculated. The dietary habits were assessed through a semi-quantitative food frequency questionnaire, administered directly. The average daily intake values were: energy, 2282.9 ± 954.0 kcal, 243.2 g of carbohydrates, 114.2 g of proteins, and 100.9 g of lipids. These values include a protein intake of 25.40%, 52.11% carbohydrate and 22.47% lipids. It was concluded that there is an increase in protein and lipid intake in samples from the university students evaluated.
- Efeitos de um programa de exercício aeróbio nos níveis de atividade física em pacientes hemodialisadosPublication . Sousa, José Florêncio; Ribeiro, Jonatas Cassiano; Sá, Carla; Novo, André; Lopes, Vitor P.O estudo teve como objetivo avaliar o efeito de um programa de exercício físico nos níveis de atividade física (AF) habitual em pacientes hemodialisados. A amostra foi composta por 24 pacientes hemodialisados, dos quais 45.8% do sexo feminino, com uma idade média de 75.1 ± 11.8 anos, que participaram num programa de exercício aeróbio intradialítico, 3 vezes por semana, ao longo de 8 semanas. A carga de treino foi individualizada, com aumento progressivo de acordo com a autoperceção de esforço. Foram utilizados acelerómetros para a avaliação da AF durante uma semana completa, tanto antes como depois da aplicação do programa. Os resultados indicaram que a AF predominantemente realizada, em ambos os momentos de avaliação, foi de intensidade leve. Por outro lado, a AF moderada e vigorosa juntas perfizeram menos de 1% do total de AF realizada. O tempo despendido em AF leve aumentou significativamente entre o pré e o pós-teste (p= 0.03), enquanto o tempo despendido em atividades sedentárias, AF moderada e AF vigorosa não se alterou de forma significativa. Em conclusão, os níveis de AF leve aumentaram de forma significativa entre o pré e o pós-teste, não se registando mudanças significativas no tempo de sedentarismo, na AF moderada e na AF vigorosa.
- Portuguese Football Federation consensus statement 2020: nutrition and performance in footballPublication . Abreu, Rodrigo; Figueiredo, Pedro; Beckert, Paulo; Marques, José P.; Amorim, Samuel; Caetano, Carlos; Carvalho, Pedro; Sá, Carla; Cotovio, Ricardo; Cruz, Joana; Dias, Tiago; Fernandes, Gonçalo; Gonçalves, Elton; Leão, César; Leitão, Alexandre; Lopes, João; Machado, Eduardo; Neves, Mónica; Oliveira, Andre Schneider; Pereira, Ana Isabel; Pereira, Bruno; Ribeiro, Fernando; Silva, Luís M.; Sousa, Filipe; Tinoco, Tânia; Teixeira, Vítor H.; Sousa, Monica; Brito, JoãoNutrition is an undeniable part of promoting health and performance among football (soccer) players. Nevertheless, nutritional strategies adopted in elite football can vary significantly depending on culture, habit and practical constraints and might not always be supported by scientific evidence. Therefore, a group of 28 Portuguese experts on sports nutrition, sports science and sports medicine sought to discuss current practices in the elite football landscape and review the existing evidence on nutritional strategies to be applied when supporting football players. Starting from understanding football's physical and physiological demands, five different moments were identified: preparing to play, match-day, recovery after matches, between matches and during injury or rehabilitation periods. When applicable, specificities of nutritional support to young athletes and female players were also addressed. The result is a set of practical recommendations that gathered consensus among involved experts, highlighting carbohydrates periodisation, hydration and conscious use of dietary supplements. © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use.
- Sleep time, tv/video games and snack consumption in preschool children: a cross-sectional studyPublication . Sá, Carla; Vilar, Jorge; Magalhães, Pedro; Vasques, CatarinaThis study aims to evaluate the sedentary behavior, caloric content of snacks and sleep time of preschool children in two different regions of Portugal (Bragança and Gondomar). Participated in this study 230 healthy preschoolers (103 girls; 127 boys), of which 176 (76.5%) were from Bragança (mean age of 4.5±0.7 years) and 54 (23.5%) were from Gondomar (mean age of 4.3±1.0 years). A questionnaire about sedentary behavior, sleep time and caloric content of snacks (morning and afternoon) were answer by parents of this preschool children. The principal results of our study indicated that the preschool children slept an average of 9.9 ± 0.9 hours, spent time 1.5 ± 0.8 hours in front of television (TV) during the week, and 2.5 ± 1.5 hours during weekend. Regarding the time spent playing video games, they did 0.6 ± 0.6 hours during the week and 0.9 ± 0.9 hours during the weekend. The children morning snack had an average of 232.7 ± 100.8 kcal and the afternoon snack had an average of 350.4 ± 122.4 kcal. According to the WHO guidelines, the results of this study revealed that preschool children spent less hours sleeping, had more caloric content in the morning and afternoon snacks and spent more time in sedentary behaviors, of what is in the recommendations. These results also suggest that the children’s slept time is affected by the time they spent watching TV and playing video games.
- The use of activity trackers devices and physical activity levels in adolescents and adultsPublication . Sá, Carla; Lopes, Vitor P.Physical activity (PA) trackers could be an important complement that enables people to modify their sedentary behaviour and to monitor their PA and exercise. This study aimed to examine the use of PA trackers in Portuguese adolescents and adults, including differences by demographic factors and PA levels.
- Nutrition-related knowledge and body mass índex in a sample of portuguese university studentsPublication . Vasconcelos, Carlos; Fernandes, José Carlos; Fernandes, Isabel P.; Fernandes, Bóris dos Santos; Rocha, Carina; Sá, CarlaINTRODUCTION: Being overweight or obese is associated with several health problems. In Portugal, 59.1% of the adult population (> 20 years old) are overweight and 24.0% obese. Nutrition-related knowledge is one important factor that influence healthy eating patterns. OBJECTIVES: The purpose of this study was to analyze the association between nutrition-related knowledge and body mass index in a sample of Portuguese university students. METHODOLOGY: This was a cross-sectional study performed in 75 Portuguese university students (40 female; 22.1 ± 3.8 years of age). Nutrition-related knowledge was assessed using the Portuguese reduced version of the Nutritional Knowledge Questionnaire. This version of the questionnaire consists of three sections (dietary recommendations [0-6 points]; sources of nutrients [0-34 points]; diet-disease relationship [0-16 points]), totaling a maximum score of 56 points. Body mass index was calculated through self-reported body weight (kg) and body height (m) data with the formula body weight (kg) / body height (m)2. RESULTS: Total score of the Portuguese reduced version of the Nutritional Knowledge Questionnaire was 31.5 ± 8.8 points. The mean value of body mass index was 22.9 ± 2.9 kg/m2. Through the use of Pearson correlation, we determine that the association between nutrition-related knowledge and body mass index is positive and non-significant (r = 0.119; p = 0.309). CONCLUSIONS: Our study revealed that there was no significant association between levels of nutrition-related knowledge and body mass index in this sample of Portuguese university students.