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- Influence of multicomponent exercise program or self-selected physical activity on physical, mental, and biochemical health indicators of older womenPublication . Encarnação, Samuel; Fazolo, Sthefany Lemos; Pereira, Felipe Soares Tomaz; Araújo, Daniele Pereira; Miranda, Cíntia Neves de; Pinto, Beatriz Woyames Ferreira; Forte, Pedro; Teixeira, José Eduardo; Barbosa, Tiago M.; Monteiro, A.M.; Moreira, Osvaldo Costa; Carneiro-Júnior, Miguel AraújoThe aim of this study was to compare physical, mental, and biochemical health indicators of 48 older women (67 ± 1 year) who practiced multicomponent exercise program (ME, n = 25) and self-selected physical activity (PA, n = 23) for 6 months. It was an observational study, which aimed to relate a prospective intervention. Displacement speed, lower limb (LL) power, functional capacity, body composition, biochemical profile, physical activity levels (PAL), sedentary behavior (SB), quality of life (QoL), and mental illness risk (MIR) were evaluated. ME presented better values compared to the PA in the gait speed (p = 0.001, large ES), aerobic capacity (p = 0.0001, large ES), agility/dynamic balance (p = 0.0001, large ES), LL flexibility (p = 0.0003, large ES), UL flexibility (p = 0.04, large ES), upper limb (UL) strength (p = 0.07, moderate ES), Total cholesterol (p = 0.009, large ES), triglycerides (p = 0.003, large ES), creatinine (p = 0.007, large ES), glycated hemoglobin (p= 0.007, large ES), and lower mean glucose value (p = 0.008, large ES). ME was more efficient than PA to improve indicators of gait speed, and functional capacity, regulate glycated hemoglobin, blood glucose, and serum creatinine. Thys study also brings practical applications for coaches, which could adapt and use creativity to develop different types of systematized ME, aiming to enhance positive adaptations in the older people at multilevel outcomes.
- The impact of multicomponent exercise protocols order on the maximum voluntary contraction of older womenPublication . Monteiro, A.M.; Rodrigues, Sandra Beatriz; Matos, Sérgio; Encarnação, Samuel; Teixeira, José Eduardo; Barbosa, Tiago M.; Rodrigues, Filipe; Forte, PedroThe aim of this study was to evaluate the impact of exercise order in multicomponent training (MCT) on the maximum voluntary contraction (MVC) of older women. A total of 91 older women, ranging in age from 60 to 85 years, were randomly assigned to either Group A or Group B. Group A performed a warm up followed by aerobic training and resistance training, whereas Group B followed a warm up followed by resistance training and aerobic training. A control group (CG) did not engage in any exercise interventions. Statistical analysis was conducted using one-way ANOVA for between-group comparisons, and ANOVA was used for repeated measures. The results revealed that Group A demonstrated significant increases in MVC for knee extensors (KEs) between M1 and M3 (p < 0.001) and between M2 and M3 (p < 0.001). Similarly, Group A exhibited significant increases in MVC for knee flexors (KFs) between M1 and M3 (p = 0.001) and between M2 and M3 (p < 0.001). Both Group A and Group B demonstrated significant increases in MVC for elbow flexors (EFs) between M1 and M3 (p < 0.001). Furthermore, Group B showed a significant increase in hand grip strength (HGS) between M1 and M3 (p < 0.001). Overall, the findings suggest that initiating MCT with aerobic training followed by resistance training is the most effective approach for improving muscle strength in older women.
- Variações da carga de treino entre titulares e não titulares durante um microciclo padrão em escalões de formação sub-15, sub-17 e sub-19 de uma academia de futebol subelitePublication . Teixeira, José Eduardo; Ribeiro, Joana; Silva-Santos, Sandra; Leal, Miguel; Flores, Pedro Miguel; Encarnação, Samuel; Barbosa, Tiago M.; Monteiro, A.M.; Ferraz, Ricardo; Branquinho, Luís; Forte, PedroO treino complementar tem sido extensamente aplicado para resolver o diferencial da carga de treino semanal entre jogadores titulares e não titulares. Contudo, pouco se sabe da sua aplicação em contextos de futebol de formação subelite. Assim, o objetivo deste estudo foi comparar as variações da carga de treino durante um microciclo padrão em escalões de formação sub-15, sub-17 e sub-19 de uma academia de futebol subelite, tendo em conta o status de titularidade. A carga de treino semanal de sessenta jovens futebolistas foi continuamente monitorizada durante seis semanas, através de sistemas de posicionamento global (GPS), cardiofrequencímetros e escalas de perceção de esforço (RPE) e recuperação (TQR). O status de titularidade considerou os jogadores titulares (iniciam pelo menos 55% dos jogos) e não titulares (suplentes em mais de 55% dos jogos). A distância (D) total percorrida apresentou diferenças significativas entre jogadores titulares e não titulares com um tamanho de efeito moderado (t = -2,38, Δ = -428,03 m, p = 0,018, d = 0,26), tendo-se observado um volume de treino maior nos jogadores não titulares (DTitulares = 5105,53 ± 1684,22 vs. D Não titulares = 5533,56 ± 1549,26 m). De igual modo, verificaram-se efeitos interativos e significativos entre as variáveis de carga de treino acumulada, o status de titularidade, o tempo de jogo e a duração da sessão de treino, considerando-se tanto as comparações intraindividuais (F = 140,46; !2 = 0,85; p <0,001) como as interindividuais (F = 11,63 a 160,70; !2 = 0,05 a 0,76; p <0,001). Deste modo, a titularidade parece influenciar também o volume de treino nos escalões de futebol subelite, sendo recomendável priorizar sessões de treino complementar e/ou individualizado para equalizar a carga de treino semanal e, por conseguinte, proporcionar oportunidades de prática similares a jogadores com menos minutos de competição.
- Machine learning classification of consumption habits of creatine supplements in gym goersPublication . Magalhães, Patrícia C.; Encarnação, Samuel; Forte, Pedro; Teixeira, José Eduardo; Monteiro, A. M.; Barbosa, Tiago M.; Pereira, Ana Maria Geraldes Rodrigues; Schneider, AndréThe aim is to identify usage patterns and the main factors that influence creatine supplementation, providing a basis for future educational interventions and recommendations for safe and effective use. The study was applied to gym goers in Bragança, where a QR code for a survey was released. 158 people participated, 65 non-consumers of creatine supplementation (37.34% men; 22.78% women) and 95 consumers (15.19% men; 24.68% women). Five machine learning algorithms were implemented to classify creatine consumption in gym goers: Logistic Regression, Gradient Boosting Classifier, Ada Boost Classifier, Xgboost Classifier. K-folds cross-validation was implemented to validate the machine learning performance. There was an increased proportion of females with considered themselves not sufficiently informed about the creatine effects/side effects (22.2%) in comparison to males (8.47%), p=0.03. The AdaBoost classifier exposed the best overall performance (86%) in classifying overuse of creatine in gym goers based on their Smoke habits (r = 0.33), grams of creatine used per day (r = 0.50) and lack information about the side effects of creatine intake (r = -0.33). The K-folds method validates the results with very good performance (86%). In conclusion, the five machine learning methods employed well characterized the overuse of creatine in gym goers based on smoke habits, grams of creatine per day, and lack information about the side effects of creatine intake.
- Swimsuits used by elite male swimmers in the 13th FINA world Championship: analysis of freestyle eventsPublication . Neiva, Henrique P.; Vilas-Boas, João Paulo; Barbosa, Tiago M.; Silva, A.J.; Marinho, D.A.Several world records have been broken in recent years. Swimming community speculates this fact is partly related due to the changes in swimsuits characteristics. To swim faster one need to increase the thrust and reduce drag, which can be achieved wearing the new polyurethane swimsuits (Marinho et al., 2009). The purpose of this study was to verify the distribution of different swimsuits used by male swimmers during all the freestyle finals, according to the different distances swum, at the last world championships being held at Rome in 2009.
- Is V̇O2peak a valid estimation of V̇O2max in swimmers with physical impairments?Publication . Feitosa, Wellington G.; Barbosa, Tiago M.; Correia, Ricardo de Assis; Castro, Flávio A. de SouzaPeak and maximal oxygen uptake (V_O2peak and V_O2max, respectively) are used in assessing aerobic power. For swimmers with physical impairments, it is unclear whether the physiological variables obtained in 200-m and Nx200-m tests are similar. The objective of this study is to assess the validity of V_O2peak as an estimator of V_O2max and complementary physiological variables, in particular, carbon dioxide production (V_ CO2), respiratory exchange ratio (RER), minute-ventilation (V_ EÞ and absolute (HR) and relative (%HRmax) heart rates—which were obtained in a time trial test (200- m) and an incremental intermittent test (Nx200-m) performed by swimmers with physical impairments. Methods: Eleven well-trained swimmers with physical impairments performed 200-m all-out and Nx200-m from low to all-out (controlled by a visual pacer), both with a respiratory valve system and a portable gas analyzer. Results: A paired Student’s t-test showed no statistical difference (p > .05) for all comparisons. The intraclass correlation coefficient (ICC) was 0.97 and 0.98 for V_O2 in l/min and ml/kg/min, respectively; ICC = 0.75 to 0.9 for V_ CO2 (l/min and ml/kg/min), V_ E (in l/min) and HR (beats/min); ICC = 0.5 and 0.75 for %HRmax; and ICC < 0.5 for RER. Passing-Bablok regression showed that the dispersions were acceptable, considering the proportionality, except for HR and % HRmax. Bland-Altman method showed a high level of agreement for all variables. Conclusions: The _VO2peak and _VO2max, as well as the physiological variables _VCO2 and HR obtained, respectively, by 200-m and Nx200-m tests in swimmers with physical impairment were not different.
- Manual de referência FPN para o ensino e aperfeiçoamento em natação: um modelo multidisciplinarPublication . Barbosa, Tiago M.; Costa, M.J.; Marinho, D.A.; Queirós, Telma Maria Gonçalves; Costa, Aldo M.; Cardoso, L.; Martins, Marta; Leite, Fernando; Machado, José; Silva, A.J.ligadas à prática da natação e pretende, com a sua experiência na missão de melhorar as condições de prática das disciplinas competitivas, estender a todas as entidades e praticantes de atividades aquáticas os benefícios duma organização de âmbito nacional, com abrangência insular, regional e local. No âmbito do PEFPN_2014-2024, e da análise dos fatores de competitividade, da missão e visão institucionais da FPN, decorreram quatro vetores estratégicos: (i) massificar a prática da natação; (ii) desenvolver a prática desportiva; (iii) render e competir ao alto nível; (iv) sustentar a atividade: estrutural e funcional (transversal a todos os restantes).
- Muscle damage and hematological changes induced by eccentric exercisePublication . Magalhães, Pedro; Barbosa, Tiago M.; Lopes, Vitor P.; Guerra, M.; Neuparth, Maria João; Duarte, José AlbertoRegular physical exercise of moderate intensity is normally beneficial to the human organism (Smith et al., 1990; Bury et al., 1998). Nevertheless, under some conditions, the exercise could be a source of stress for some human structures. Eccentric exercise, has been understood as a induction factor of muscle damage on the exercised muscles (Duarte et al., 1999) and, usually, it's accompanied by systemic physiologic alterations similar, in some aspects, to traumas and infections (Northoff et al., 1995). The aims of this study were: to analyse the presence of muscle damage, and to verify the haematological changes brought by a strenuous protocol of uncustomary physical exercise
- Kinematic measurement of wheelchair racing using smartphones sensorsPublication . Ming, Chow Kin; Barbosa, Tiago M.Givem the increasing demand for high-performance in Paralympic sports, there is likewise as larger demand for analytical data. Recent developments in miniaturisation allows tri-axial measurement of the accelarartion with very small sensores (~2.6mm3) such as the ones embebed in smartphones.
- Machine learning classification of consumption habits of creatine supplements in GYM goersPublication . Magalhães, Patrícia C.; Encarnação, Samuel; Forte, Pedro; de Araújo Teixeria, José Eduardo; Monteiro, António M.; Barbosa, Tiago M.; Pereira, Ana M.; Encarnação, Samuel; Pereira, Ana Maria Geraldes RodriguesThe aim is to identify usage patterns and the main factors that influence creatine supplementation, providing a basis for future educational interventions and recommendations for safe and effective use. The study was applied to gym goers in Bragança, where a QR code for a survey was released. 158 people participated, 65 non-consumers of creatine supplementation (37.34% men; 22.78% women) and 95 consumers (15.19% men; 24.68% women). Five machine learning algorithms were implemented to classify creatine consumption in gym goers: Logistic Regression, Gradient Boosting Classifier, Ada Boost Classifier, Xgboost Classifier. K-folds cross-validation was implemented to validate the machine learning performance. There was an increased proportion of females with considered themselves not sufficiently informed about the creatine effects/side effects (22.2%) in comparison to males (8.47%), p=0.03. The AdaBoost classifier exposed the best overall performance (86%) in classifying overuse of creatine in gym goers based on their Smoke habits (r = 0.33), grams of creatine used per day (r = 0.50) and lack information about the side effects of creatine intake (r = -0.33). The K-folds method validates the results with very good performance (86%). In conclusion, the five machine learning methods employed well characterized the overuse of creatine in gym goers based on smoke habits, grams of creatine per day, and lack information about the side effects of creatine intake.