33 research outputs found
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 fÃsica 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
ambÃgua 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 nÃvel
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 sanguÃnea de lactato foi analisada após o teste
de 50 m, ao 1º e 3º minuto de recuperação. Adicionalmente, foram utilizados os nÃveis da
escala de percepção subjetiva de esforço de Borg e foram avaliados parâmetros biomecânicos
como a frequência gestual, distância de ciclo e Ãndice 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), nÃveis 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 Ãndice 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