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Does the level of training interfere with the sustainability of static and dynamic strength in paralympic powerlifting athletes?
Get PDFBackground: Paralympic powerlifting (PP) presents adaptations that the training tends to provide, mainly concerning the mechanical variables. Objective: Our aim was to analyze mechanical, dynamic and static indicators, at different intensities, on the performance of paralympic powerlifting athletes. Methods: 23 athletes of PP, 11 national level (NL) and 12 regional level (RL) performed dynamic and static tests over a comprehensive range of loads. The study evaluated regional and national level athletes and the influence on the training level on the performance of strength. The study was carried out in four weeks, with the first week to familiarize with the one repetition maximum (1RM), day 1, and there was a 72-h rest and familiarization with dynamic and static tests carried out day 2. In week 2, the 1RM tests were performed (day 1 and 72 h later), and the static tests were performed with a distance of 15 cm from the bar to the chest, with the tests of maximum
isometric strength, time to maximum isometric strength, rate of force development (RFD), impulse, variability and fatigue index (IF) taking place on day 2. In weeks three and four dynamic tests were performed, including means propulsive velocity, maximum velocity, power and prediction of one maximum repeat. Results: Differences were found, with better results than for RL in relation to NL in MVP (45%, 55%, and 75% 1RM), in VMax (50%, 55%, 75% and 95% 1RM). In power, the NL had better results (40%, 45%, 50%, 60% and 95% 1RM). Conclusion: RL athletes tend to present better results with regard to velocity, however in power, NL athletes tend to present better performances.9E1A-F9DD-3EB8 | Filipe Manuel ClementeN/
Relationships between internal training intensity and well-being changes in youth football players
Get PDFThe aim of this study was two-fold: (i) to analyze the variations of training intensity and well-being measures of youth football player over a 38 week period; and (ii) to test the relationships between training intensity and well-being variations throughout a youth football season. This study followed a longitudinal design, lasting 38 weeks. Twenty-five players (age: 15.0 0.4 years) participated in this study. Participants were monitored daily to quantify the training intensity (TI) using the session-rate of perceived exertion (s-RPE) and its related indices: training monotony (TM), weekly training intensity (wTI), mean training intensity (mTI), and 5-day average (5d-AVG). A four-item questionnaire was collected daily to quantify the well-being status of each player. Fatigue, stress, delayed onset muscle soreness (DOMS), sleep quality, and the Hooper Index (HI) measures were analyzed. Kruskal-Wallis H test revealed significant differences for TM, mTI, wTI and 5d-AVG (H =359.53, p = 0.001, 2 = 0.35; H = 414.97, p = 0.001, 2 = 0.41, H = 258.42, p = 0.001, 2 = 0.24 and H=282.18, p = 0.001, 2 =0.26). A positive large correlation was found between TM and sleep quality (r = 0.65, p = 0.05) and a negative large correlation between mTI and sleep quality (r = 0.69, p = 0.04). In conclusion, both TI and well-being measures present significant between-week differences at different periods of the season. Also, the variations of sleep quality seem to depend on TM and mTI variations across a youth football season.9E1A-F9DD-3EB8 | Filipe Manuel ClementeN/
Sobre a aquisição da Fonologia do Português Europeu como L1: caminhos por trilhar
Get PDFThis text presents a set of reflections on the state of the art regarding phonological acquisition in European Portuguese as L1. Taking the existing research accomplishments as its starting point, the discussion presented here will focus on what still needs to be done and known in different domains: regarding the construction, validation and availability of corpora and tools for phonological assessment; in the study of typical and atypical development; in the relationships between research and clinical and pedagogical intervention. Among the paths to be followed, emphasis will be placed on the need to instill multidisciplinary and multimodal approaches in phonological acquisition research, combining data from production, perception and metaphonological processing.BD13-D01B-7BB4 | MARIA CLARA FIGUEIREDO AMORIMN/
a study in youth male soccer players exposed to Covid-19 lockdown
Get PDFThe aim of this study is to examine how physical performance has changed after 15 weeks (109 days) long-term absence of organized training in youth soccer players imposed by the stay at home orders. A total of sixty-eight young male soccer players from different age categories (U15, U16, U17 and U19) voluntarily participated in the prospective cohort study. Body fat percentage (BF%), counter-movement jump (CMJ), 30 m sprint, change-of-direction (COD) and yo-yo intermittent recovery test level-1 (YYIRTL-1) were evaluated twice (before and after the detraining period).
Subsequently, 2 × 2 repeated measures ANOVA was used to investigate group and time differences in repeated measurements. A significance level of p < 0.05 was implemented. CV and SWC values were calculated to test the reliability of the tests performed at different times. Statistical analysis was performed using the IBM SPSS statistics software (v.25, IBM, New York, NY, USA). Significant increments in BF%, 30 m sprint, and COD (left and right), and also significant decrements in CMJ and YYIRTL-1, were found after the detraining period. A long-term detraining period due to the stay at home orders has a detrimental effect on body composition, neuromuscular performances, and aerobic capacity in youth soccer players.9E1A-F9DD-3EB8 | Filipe Manuel ClementeN/
interactions between playing positions and age-groups
Get PDFThe purpose of this study was two-fold: (i) analyze the variations of locomotor profile, sprinting, change-of-direction (COD) and jumping performances between different youth age-groups; and (ii) test the interaction effect of athletic performance with playing positions. A cross-sectional study design was followed. A total of 124 youth soccer players from five age-groups were analyzed once in a time. Players were classified based on their typical playing position. The following measures were obtained: (i) body composition (fat mass); (ii) jump height (measured in the countermovement jump; CMJ); (iii) sprinting time at 5-, 10-, 15-, 20-, 25- and 30-m; (iv) maximal sprint speed (measured in the best split time; MSS); (v) COD asymmetry index percentage); (vi) final velocity at 30-15 Intermittent Fitness Test (VIFT); and (vii) anaerobic speed reserve (ASR = MSS − VIFT). A two-way ANOVA was used for establishing the interactions between age-groups and playing positions.
Significant differences were found between age-groups in CMJ (p < 0.001), 5-m (p < 0.001), 10-m (p < 0.001), 15-m (p < 0.001), 20-m (p < 0.001), 25-m (p < 0.001), 30-m (p < 0.001), VIFT (p < 0.001), ASR (p = 0.003), MSS (p < 0.001), COD (p < 0.001). Regarding variations between playing positions no significant differences were found. In conclusion, it was found that the main factor influencing changes in physical fitness was the age group while playing positions had no influence on the variations in the assessed parameters. In particular, as older the age group, as better was in jumping, sprinting, COD, and locomotor profile.9E1A-F9DD-3EB8 | Filipe Manuel ClementeN/
a parallel-study design
Get PDFMost of the research combining small-sided games (SSGs) with high-intensity interval training (HIIT) is using the short or long forms of HIIT. However, other types of HIIT as repeated sprint training (RST) could enhance different stimuli.
The purpose of the current research was to analyze the within- and between-group variations of physical fitness and body composition of two combined training interventions: (i) SSGs combined with a short high intensity interval training (sHIIT); and (ii) SSGs combined with a RST. This study followed a randomized parallel study design.
Twenty-eight youth soccer players (age: 17.3 ± 0.5) belong to the same team were assigned equally to two interven tion groups: SSG + sHIIT versus SSG + RST. Training intervention lasted 4 weeks, with a 2-session/week frequency. The players were tested twice, once before and after the intervention with the following tests: skinfolds (fat mass); Sargent jump test (SJT); standing long jump; sprinting time at 10-, 20-, or 30-m; 5-0-5 for time and deficit; 30-15 intermittent fitness test (30-15IFT) based on the final velocity, and repeated sprint ability (RAST) for peak, minimum, average power, and fatigue index. A mixed analysis of variance was conducted to considering factor × time effect. Between group analysis revealed no significant differences at baseline and post-intervention period for fat mass, sprinting time at 10-, 20-, and 30-m, change-of-direction (COD) time and deficit, SJT and standing long jump, final velocity at 30-15IFT and RAST peak, average power, and fatigue index (p > 0.05). Within-group analysis revealed that both groups significantly reduced fat mass (p ≤ 0.001), SJT (p ≤ 0.001), standing long jump (p ≤ 0.001), sprint time at 10- and 20-m (p ≤ 0.001), 30-m (p = 0.002), COD time (p ≤ 0.001) and deficit (p < 0.05), RAST average (p < 0.05), and final velocity 30-15IFT (p ≤ 0.001). Only SSG + RST had significant improvements on COD deficit and peak power (p < 0.05). The result of the current research suggests that either SSG + sHIIT or SSG + RST are effective for improving physical fitness in youth soccer players, with a multiple beneficial effect on locomotor profile, speed and COD, jumping performance and repeated sprint ability.9E1A-F9DD-3EB8 | Filipe Manuel ClementeN/
Solving tasks with figurative patterns and generalization
No full textOs padrões são uma poderosa estratégia de resolução de problemas e o seu estudo torna possível o desenvolvimento de ideias matemáticas fundamentais, como a generalização, onde visualização tem um papel importante. O trabalho num projeto sobre padrões, desenvolvido recentemente, mostra como este tema permite ampliar conceitos, ideias e procedimentos matemáticos, dando-lhes significado através de contextos figurativos. A nossa principal preocupação é destacar a importância dessa componente visual na generalização, contribuindo para o desenvolvimento do pensamento algébrico. Nesta comunicação, apoiada em dados empíricos desenvolvidos com alunos da formação inicial de professores, apresentam-se alguns resultados onde se analisa de que modo é que uma proposta didática baseada na resolução de tarefas desafiantes que envolvem padrões em contextos figurativos contribui para o desenvolvimento da generalização.0D1E-4824-1244 | Ana Cristina Coelho Barbosainfo:eu-repo/semantics/publishedVersio
Process problem solving in pre-school education
No full textO presente estudo integra-se na área da educação matemática e realizou-se no âmbito
do Curso de Mestrado em Educação Pré-Escolar, na Escola Superior de Educação de
Viana do Castelo, em ligação estreita com a Unidade Curricular Prática de Ensino
Supervisionada II. Teve como principal objetivo compreender a forma como crianças
do ensino pré-escolar resolvem problemas de processo. Neste poster, serão
apresentadas as principais fases deste estudo. Após a implementação de uma sequência
de tarefas, foi possível verificar que as crianças estavam motivadas para a resolução de
problemas de processo, tendo utilizado diversas estratégias, no âmbito da
categorização adotada no estudo, potenciadas pelas tarefas implementadas, que
também permitiram a mobilização de conhecimentos prévios de natureza diversa. No
entanto, foram também evidenciadas algumas dificuldades que incidiram,
principalmente, na fase de compreensão e interpretação dos problemas e na
comunicação da sua forma de pensar, através dos registos.0D1E-4824-1244 | Ana Cristina Coelho Barbosainfo:eu-repo/semantics/publishedVersio
Lesões musculoesqueléticas relacionadas com o trabalho nos enfermeiros: explorando a dor oculta: um olhar mais atento sobre lesões musculoesqueléticas entre os enfermeiros
Get PDFRelatório de Estágio de Natureza Profissional no âmbito do Mestrado em Enfermagem de Reabilitação apresentada na Escola Superior de Saúde do Instituto Politécnico de Viana do CasteloIntrodução: As lesões musculoesqueléticas relacionadas com o trabalho são atualmente um problema de saúde de elevada prevalência na classe de enfermagem, de origem multifatorial e sensível à atuação do Enfermeiro Especialista em Enfermagem de Reabilitação. A prevenção destas patologias deve ser prioritária e visa, por um lado, a promoção da qualidade de vida da pessoa com risco elevado para as mesmas e, por outro, a redução do gasto económico relacionado com o seu tratamento.
Finalidade e objetivos: Este estudo visou caraterizar os enfermeiros, quanto à sintomatologia musculoesquelética relacionada com o trabalho. O objetivo geral do estudo foi descrever a prevalência das lesões musculoesqueléticas relacionadas com o trabalho nos enfermeiros do serviço de especialidades cirúrgicas de um hospital do Norte do país e explorar a sua associação com fatores sociodemográficos e contexto laboral.
Metodologia: Trata-se de um estudo quantitativo, descritivo e correlacional. A amostra foi obtida por conveniência, não probabilística. As variáveis de investigação são a prevalência das lesões musculoesqueléticas relacionadas com o trabalho e a caraterização sociodemográfica e laboral. Foi aplicado um questionário com duas partes: a parte um corresponde à caraterização sociodemográfica e laboral e a parte dois corresponde ao Questionário Nórdico Musculoesquelético. Os dados foram tratados em formato de base de dados e apresentados em tabelas, com auxílio do software IBM SPSS® Statistics, versão 29.0 para Windows, de acordo com os procedimentos de estatística descritiva e inferencial.
Resultados: Os resultados indicam que a prevalência das lesões musculoesqueléticas relacionadas com o trabalho é alta, com 92,3% dos participantes a relatar um problema musculoesquelético nos últimos 12 meses. As regiões mais afetadas são o pescoço (53,8%), os ombros (61,5%) e a região lombar (69,2%). Foram encontradas relações entre idade e as áreas afetadas, assim como foram observadas associações entre ocorrência de lesões musculoesqueléticas e anos de experiência profissional, tal como ocorrência de dor e caraterísticas laborais, como horas de trabalho semanal e tipo de horário.
Conclusões: Este estudo identificou uma alta prevalência de lesões musculoesqueléticas relacionadas com o trabalho. O estudo ressalva a importância de abordagens multifatoriais e sistémicas na prevenção destas lesões. Ficou evidente que é necessário procurar melhorias nas condições de trabalho dos enfermeiros, como fator preventivo de desenvolvimento de lesões musculoesqueléticas relacionadas com o trabalho.Introduction: Work-related musculoskeletal injuries are currently a highly prevalence health problem among nurses, of multifactorial origin and sensitive to the Rehabilitation Nursing specialist nurse. The prevention of this pathologies should be a priority and aims to promote the quality of life of high-risk people and, on the other hand, to reduce the economic cost related to their treatment.
Purpose: This study aimed to characterize the nurses, regarding work-related musculoskeletal symptoms. The main objective was to describe the prevalence of these health problems in nurses and working in the surgical specialties ward of a hospital in the north of Portugal and to explore their association with sociodemographic factors and work context.
Methods: This was a quantitative, descriptive, correlational study. The sample was obtained by convenience, not probabilistic. The variables are the prevalence of work-related musculoskeletal disorders and sociodemographic and work characteristics. A two-part questionnaire was applied: part one stands for the sociodemographic and work characterization and part two corresponds to the Nordic Musculoskeletal Questionnaire. Data was processed in a database format and presented with graphics and charts, with the assistance of IBM SPSS® Statistics, version 29.0 for Windows software, in accordance with descriptive and inferential statistic procedures.
Results: The results indicate that the prevalence of musculoskeletal injuries is high, with 92,3% of participants reporting a musculoskeletal problem in the last 12 months. The most affected regions are the neck (53.8%), shoulders (61.5%) and lumbar region (69.2%). Relations were found between age and the affected areas, as well as associations between the occurrence of musculoskeletal injuries and years of professional experience, such as the occurrence of pain and work characteristics, such as hours of work per week and type of schedule.
Conclusions: This study identified a high prevalence of musculoskeletal injuries. The study highlights the importance of multifactorial and systemic approaches in preventing these injuries. It became evident that it is necessary to seek improvements in the working conditions of nurses, as a preventive factor in the development of musculoskeletal injuries
Aquacultura em regime intensivo de Psetta maxima e em regime semi-intensivo de Dicentrarchus labrax e Sparus aurata
Get PDFDissertação de Mestrado em Zootecnia apresentada na Escola Superior Agrária de Ponte de LimaA aquacultura tem sido uma forte contribuição no aporte alimentar de pescado ao ser humano como a proteína do futuro. Face ao seu crescimento e às implicações ambientais que esta apresenta surgiu a necessidade de criar legislação para o controle desta atividade. Tal como a agricultura ou pecuária, o impacto que gera no ambiente é motivo de grande preocupação, tendo sido desenvolvidas formas que minimizem este, com a adoção de medidas de restrição no uso da água, controlo dos parâmetros e tratamento dos efluentes. Assim, a aquacultura deve ser praticada de uma forma sustentável, tendo como prioridade a produção de peixe, a inclusão social, ambiental e económica (Eler & Millani, 2007).
Neste contexto, este trabalho foi realizado no âmbito da unidade curricular Estágio/Dissertação/Projeto do 2º ano de mestrado de Zootecnia, tendo como objetivos avaliar os impactos da atividade aquícola, as formas de os minimizar e, desta forma, fazer um estudo de caso que avalie e compare o desenvolvimento zootécnico num sistema RAS. Para isso, foram escolhidos dois locais de estágio onde foram desenvolvidas e observadas as atividades inerentes a estes. O primeiro na Stolt Sea Farm durante 10 meses e o segundo na Nasharyba durante 2 meses.
São descritos e estudados dois tipos de regimes, um intensivo na produção de pregado (Psetta maxima) com recurso à recirculação de água e outro semi-intensivo na produção de robalo (Dicentrarchus labrax) e dourada (Sparus aurata). Em ambos os sistemas, se constata que o impacto ambiental não é preocupante, uma vez que no regime intensivo é usada a recirculação da água e tratamento dos efluentes e no regime semi-intensivo com a baixa densidade que este comporta e com as trocas de água proveniente das marés, diminui significativamente a poluição ambiental.
Durante o estágio no regime intensivo, foi realizada uma avaliação do desempenho zootécnico de Psetta maxima em dois tanques com água de 1º uso (SR) e dois com água de recirculação (CR), a fim de comparar o seu desenvolvimento em ambos os sistemas, concluindo-se que embora o RAS diminua a quantidade de água utilizada, esta é mais pobre em nutrientes, podendo resultar num menor crescimento do peixe e, assim, aumentar os custos de produção para o piscicultor. No entanto, neste estudo não foi possível concluir que este é o único fator responsável pelo atraso de crescimento verificado.Aquaculture has been a strong contribution to the food supply of fish to humans as the protein of the future. In view of its growth and the environmental implications it presents, the need arose to create legislation to control this activity. Just like agriculture or livestock, the impact it generates on the environment is a matter of great concern, and ways have been developed to minimize it, with the adoption of measures to restrict the use of water, control of parameters and treatment of the environment. Thus, aquaculture must be practiced in a sustainable way, with priority given to fish production, social, environmental and economic inclusion (Eler & Millani, 2007).
In this context, this work was carried out within the scope of the curricular unit Internship/Dissertation/Project of the 2nd year of the Master's Degree in Animal Science, with the objectives of evaluating the impacts of aquaculture activity, the ways to minimize them and, in this way, make a case study that evaluates and compares zootechnical development in a RAS system. To this end, two internship sites were chosen where the activities inherent to them were developed and observed. The first at Stolt Sea Farm for 10 months and the second at Nasharyba for 2 months.
Two types of regimes are described and studied, one intensive in the production of turbot (Psetta maxima) using water recirculation and the other semi-intensive in the production of sea bass (Dicentrarchus labrax) and sea bream (Sparus aurata). In both systems, it can be seen that the environmental impact is not a concern, since in the intensive regime the recirculation of water and treatment of effluents is used and in the semi-intensive regime with the low density that it entails and with the exchange of water from the tides, environmental pollution is significantly reduced.
During the internship in the intensive regime, an evaluation of the zootechnical performance of Psetta maxima was carried out in two tanks with 1st use water (SR) and two with recirculating water (CR), in order to compare its development in both systems, it was concluded that although RAS decreases the amount of water used, it is poorer in nutrients, which may result in lower fish growth and thus increase production costs for the fish farmer. However, in this study it was not possible to conclude that this is the only factor responsible for the growth retardation observed