LandCRAFT. A arte da Pré-história Recente no vale do Côa

info:eu-repo/semantics/publishedVersio

O efeito do aquecimento no rendimento em distâncias curtas de nado

As tarefas de aquecimento que antecedem a realização de atividade física são habituais e foram-se assumindo ao longo do tempo, como essenciais em competição e em treino. É expectável uma otimização do rendimento desportivo, contudo a literatura apresenta-se ambígua nesta matéria. O objetivo do presente estudo foi verificar o efeito do aquecimento habitual no rendimento dos 50 m, em nadadores do sexo feminino. Sete nadadoras de nível nacional (média ± DP; idade: 15.3 ± 1.1 anos, altura: 1.61 ± 8.1 m, massa corporal: 56.5 ± 7.0 kg) voluntariaram-se para este estudo. Cada nadadora realizou 50 m crol, à máxima velocidade, após a realização ou não de aquecimento prévio (24 h entre as duas condições). Os tempos foram registados e a concentração sanguínea de lactato foi analisada após o teste de 50 m, ao 1º e 3º minuto de recuperação. Adicionalmente, foram utilizados os níveis da escala de percepção subjetiva de esforço de Borg e foram avaliados parâmetros biomecânicos como a frequência gestual, distância de ciclo e índice de nado. Os tempos registados nos 50 m crol não foram diferentes com e sem aquecimento (33.05 ± 2.34 s e 32.71 ± 2.07 s, respectivamente, p = 0.40). Não foram encontradas diferenças nos valores de lactato (8.63 ± 1.49 mmolKl-1 e 7.93 ± 1.92 mmolKl-1, respectivamente; p = 0.71), níveis de percepção de esforço (15.86 ± 1.07 e 15.14 ± 1.22, respectivamente; p = 0.24), frequência gestual (0.81 ± 0.08 Hz e 0.81 ± 0.04 Hz, respectivamente; p = 0.79), distância de ciclo (1.87 ± 0.14 m e 1.89 ± 0.12 m, respectivamente; p = 0.74) e índice de nado (2.85 ± 0.31 m2 c-1 s-1 e 2.91 ± 0.34 m2 c-1 s-1, respectivamente; p = .40). Estes resultados sugerem que o aquecimento habitualmente realizado pelas nadadoras não influencia o rendimento nos 50 m na técnica de crol.Warming up before physical activity is usual and became assumed as essential in competition and training events. It is expected an optimization in performance but the literature is still ambiguous on this subject. The aim of this study was to assess the effect of the regular warmup in 50 m swimming performance, in female swimmers. Seven national-level swimmers (mean ± SD; age 15.3 ± 1.1 years-old, height: 1.61 ± 8.1 m, body mass: 56.5 ± 7.0 kg) volunteered for this study. Each swimmer performed 50 m freestyle at the maximum velocity, after previous warm-up and without performing the same, with 24 h between conditions. Times were registered and capillary blood lactate concentration was assessed after the swimming trial at the 1st and 3rd min of recovery. Additionally, the Borg ratings of perceived exertion scale were used and biomechanical parameters such as stroke frequency, stroke length and stroke index were assessed. The 50 m swimming times were not different with and without warm-up (33.05 ± 2.34 s and 32.71 ± 2.07 s, respectively, p =.40). No differences were found in lactate values (8.63 ± 1.49 mmol·l-1 and 7.93 ± 1.92 mmol·l-1, respectively; p = .71), ratings of perceived exertion (15.86 ± 1.07 and 15.14 ± 1.22, respectively; p =.24), stroke frequency (0.81 ± 0.08 Hz and 0.81 ± 0.04 Hz, respectively; p = .79), stroke length (1.87 ± 0.14 m and 1.89 ± 0.12 m, respectively; p = .74) and stroke index (2.85 ± 0.31 m2 c-1 s1 and 2.91 ± 0.34 m2 c-1 s-1, respectively; p = .40). These results suggested that regular warmup used by the swimmers does not influence the 50 m freestyle performance, in female swimmers

As gravuras rupestres do Monte Faro (Valença, Viana do Castelo) – Um exemplo maior das Arte Atlântica peninsular

On the northern fringes of Serra do Extremo, overlooking the valley of the river Minho, the hills of Monte Faro and Monte dos Fortes revealed an exceptional collection of prehistoric rock carvings belonging to the Iberian Atlantic Art tradition. In the late 1970s and early 1980s, A. Leite da Cunha e E. J. Silva studied here the well-known sites of Monte da Laje, Tapada do Ozão e Monte dos Fortes. Between 2013 and 2015, a new research project amplified the numbers to over one hundred carved rocks, amongst which 91 are dated to Late Prehistory. This allows us to acknowledge that this is the largest assemblage of Atlantic Art identified, so far, in Portugal. This paper, which inaugurates the dissemination of the research outcomes, reveals how the project was structured, the methodology adopted and offers a preliminary description of the archaeological sites

Space of memory and representation : Bouça da Cova da Moura (Ardegães, Maia, Northwest of Portugal)

Bouça da Cova da Moura is the local place-name attributed to a stretch of a plateau overlooking the Leça valley. Here, Neolithic burial mounds share their landscape setting with scatters of archaeological materials that include Bell Beaker fragments, idols and metalwork. Since these are mostly surface findings, their contexts have not yet been accurately determined. Another significant feature is the presence of prehistoric rock carvings. The plateau may thus be considered a public space, conceptually and physically built over time. Its significance and meanings were certainly created and transmitted through practices of memory construction which are representative of cultural identity and social cohesion.Le site de Bouça da Cova da Moura se trouve sur un plateau faisant face au Rio Leça. On y a identifié des tertres funéraires du Néolithique, auxquels sont associés des zones de concentration d’artefacts, incluant céramiques campaniformes, idoles et mobilier métallique. S’agissant de mobilier de surface, le contexte de ces différentes concentrations n’a pas été déterminé avec attention. Un autre fait significatif est l’apparition de gravures rupestres préhistoriques. On peut considérer le plateau comme un espace publique, qui s’est bâti physiquement et conceptuellement au cours des temps. Son importance et sa signification ont certainement été créées et transmises à travers un certain nombre de pratiques de construction mémorielle, représentatives de l’identité culturelle et de la cohésion sociale

Space of memory and representation: Bouça da Cova da Moura (Ardegães, Maia, Northwest of Portugal): a case study

Bouça da Cova da Moura is the local place-name attributed to a stretch of a plateau overlooking the Leça valley. Here, Neolithic burial mounds share their landscape setting with scatters of archaeological materials that include Bell Beaker fragments, idols and metalwork. Since these are mostly surface findings, their contexts have not yet been accurately determined. Another significant feature is the presence of prehistoric rock carvings. The plateau may thus be considered a public space, conceptually and physically built over time. Its significance and meanings were certainly created and transmitted through practices of memory construction which are representative of cultural identity and social cohesion.Le site de Bouça da Cova da Moura se trouve sur un plateau faisant face au Rio Leça. On y a identifié des tertres funéraires du Néolithique, auxquels sont associés des zones de concentration d’artefacts, incluant céramiques campaniformes, idoles et mobilier métallique. S’agissant de mobilier de surface, le contexte de ces différentes concentrations n’a pas été déterminé avec attention. Un autre fait significatif est l’apparition de gravures rupestres préhistoriques. On peut considérer le plateau comme un espace publique, qui s’est bâti physiquement et conceptuellement au cours des temps. Son importance et sa signification ont certainement été créées et transmises à travers un certain nombre de pratiques de construction mémorielle, représentatives de l’identité culturelle et de la cohésion sociale.info:eu-repo/semantics/publishedVersio

Tattooed landscapes. A reassessment of Atlantic Art distribution, research methods and chronology in the light of the discovery of a major rock art assemblage at Monte Faro (Valença, Portugal)

The Winter 2012 marks the beginning of a pioneer research in Portugal intended to approach Atlantic Art under the theoretical and methodological principles of Landscape Archaeology, targeting a confined geomorphological unit. This paper presents the results of systematic field surveys at Monte Faro, carried out between 2013 and 2015, and announces the discovery of the largest concentration of Atlantic Art sites ever found in this country. This evidence will contribute to reassess the widespread believe in the peripheral character of Atlantic Art in Portugal, if put against the realities found in Galicia, Ireland, England and Scotland. Yet, most importantly, it will allow us to reexamine aspects that have been at the forefront of Atlantic Art studies, from chronology to fieldwork methodologies and the application of digital technologies in rock art recording. But we shall also tackle issues that have been lacking in-depth discussion like the question of style, the concept of biogeography and its usefulness in rock art studies, aiming towards a theoretical and methodological revitalization of research on the prehistoric art of Atlantic Europe

The movement of signs : post-glacial rock art in north-western Iberia

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Entre o Côa e o Douro, nos longos milénios do pós-glaciar: quadro de referência da arte rupestre da Pré-história Recente da região do Côa

info:eu-repo/semantics/publishedVersio