10 documents found, page 1 of 1
Study of body composition and motor skills of futsal athletes of different comp...
Belo, João; Santos, João Valente dos; Pereira, João R.; Duarte-Mendes, Pedro; Gamonales, José M.; Paulo, RuiThis study aimed to verify whether there are differences in the body composition, functionality, lower-limb power, agility, and cardiorespiratory capacity in futsal players, comparing futsal athletes by competitive level. The athletes (N = 84) were divided into three groups: group Elite (N = 29), group Sub-Elite (N = 29), and group Non-Elite (N = 26). Anthropometric variables were analyzed through a bioimpedanc...
Effects of a Velocity-Based Complex Training Program in Young Female Artistic R...
Rebelo, André; Pereira, João R.; Martinho, Diogo V.; Valente-dos-Santos, JoãoComplex training consists of a near maximal strength effort followed by a biomechanically similar explosive exercise. One of many complex training methods that have been proposed is the French Contrast Method. The aim of this study was to analyze the effects of the French Contrast Method on maximal strength and power of young female artistic roller skating athletes with the help of velocity-based training to pr...
Rating of Perceived Exertion in Professional Volleyball: A Systematic Review
Rebelo, André; Pereira, João R.; Martinho, Diogo V.; Valente-dos-Santos, JoãoThe rating of perceived exertion (RPE) is a non-invasive, cost effective, and time efficient strategy to measure training loads. However, data can be collected without following specific procedures and across a range of methods (e.g., different RPE scales and/or different operational questions). Consequently, practitioners working in professional volleyball can use this information in various ways with differen...
How to Improve the Reactive Strength Index among Male Athletes? A Systematic Re...
Rebelo, André; Pereira, João R.; Martinho, Diogo V.; Duarte, João P.; Silva, Manuel João Coelho e; Santos, João Valente dosThe reactive strength index (RSI) describes the individual's capability to quickly change from an eccentric muscular contraction to a concentric one and can be used to monitor, assess, and reduce the risk of athlete's injury. The purpose of this review is to compare the effectiveness of different training programs on RSI. Electronic searches were conducted in MEDLINE, PubMed, Scopus, SPORTDiscus, and Web of Sci...
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains ...
Concórdio-Reis, Patrícia; Pereira, João R.; Delgado Alves, Vitor; Nabais, Ana R.; Neves, Luísa A.; Marques, Ana C.; Fortunato, Elvira; Moppert, XavierThis work assessed the film-forming capacity of exopolysaccharides (EPS) produced by six Alteromonas strains recently isolated from different marine environments in French Polynesia atolls. The films were transparent and resulted in small colour alterations when applied over a coloured surface (ΔEab below 12.6 in the five different colours tested). Moreover, scanning electron microscopy showed that the EPS film...
Production of medium-chain-length polyhydroxyalkanoates by Pseudomonas chlorora...
Pereira, João R.; Araújo, Diana; Freitas, Patrícia; Marques, Ana C.; Delgado Alves, Vitor; Sevrin, Chantal; Grandfils, Christian; Fortunato, ElviraPseudomonas chlororaphis subsp. aurantiaca DSM 19603 was cultivated on apple pulp, a glucose- and fructoserich waste generated during juice production, to produce medium-chain length polyhydroxyalkanoates. A cell dry mass of 8.74 ± 0.20 g/L, with a polymer content of 49.25 ± 4.08% were attained. The produced biopolymer was composed of 42.7±0.1mol% 3-hydroxydecanoate, 17.9±1.0mol% 3-hydroxyoctanoate, 14.5±1.1mol...
Preparation and characterization of films based on a natural P(3HB)/mcl-PHA ble...
Rebocho, Ana Teresa; Pereira, João R.; Neves, Luísa A.; Delgado Alves, Vitor; Sevrin, Chantal; Grandfils, Christian; Freitas, Filomena; Reis, Maria A.M.The co-culture of Cupriavidus necator DSM 428 and Pseudomonas citronellolis NRRL B-2504 was performed using apple pulp waste from the fruit processing industry as the sole carbon source to produce poly(3-hydroxybutyrate), P(3HB) and medium-chain length PHA, mcl-PHA, respectively. The polymers accumulated by both strains were extracted from the co-culture’s biomass, resulting in a natural blend that was composed...
Preparation and Characterization of Films Based on a Natural P(3HB)/mcl-PHA Ble...
Rebocho, Ana Teresa; Pereira, João R.; Neves, Luísa A.; Delgado Alves, Vitor; Sevrin, Chantal; Grandfils, Christian; Freitas, Filomena; Reis, Maria A.M.The co-culture of Cupriavidus necator DSM 428 and Pseudomonas citronellolis NRRL B-2504 was performed using apple pulp waste from the fruit processing industry as the sole carbon source to produce poly(3-hydroxybutyrate), P(3HB) and medium-chain length PHA, mcl-PHA, respectively. The polymers accumulated by both strains were extracted from the co-culture’s biomass, resulting in a natural blend that was composed...
Compliance with the Australian 24-hour movement guidelines for the early years:...
Santos, Rute; Zhang, Zhiguang; Pereira, João R.; Sousa-Sá, Eduarda; Cliff, Dylan P.; Okely, Anthony D.Background: For effective public health and surveillance it is important to document the proportion of young children who meet the new Australian Integrated 24 h Movement Guidelines for the Early Years and how these associate with health outcomes. We aimed to (i) assess compliance with the new Integrated 24 h Movement Guidelines for the Early Years in a sample of Australian toddlers; and (ii) ascertain whether ...
Repeated Dribbling Ability in Young Soccer Players: Reproducibility and Variati...
Duarte, João P.; Tavares, Óscar M.; Valente-dos-Santos, João; Severino, Vítor; Ahmed, Alexis; Gonçalves, Ricardo Rebelo; Pereira, João R.; Vaz, VascoThe intermittent nature of match performance in youth soccer supports relevance of ability to repeatedly produce high-intensity actions with short recovery periods. This study was aimed to examine the reproducibility of a repeated dribbling ability protocol and, additionally, to estimate the contribution of concurrent tests to explain inter-individual variability in repeated dribbling output. The total sample c...