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- Stability of behaviour patterns in the 200m breaststrokePublication . Louro, Hugo; Silva, António; Campaniço, Jorge; Matos, Telmo; Conceição, AnaThe aim of this study was to analyse the stability of the breaststroke technique in five elite swimmers in a 200m event using a qualitative analysis. The codification of the behaviour of each swimmer during the execution of 20 cycles was achieved using an ad hoc observational instrument comprised of a system of categories and field formats to detect the behavioural patterns (T-patterns); software was used for identifying the technical behaviour of stable structures. The results showed that the stability behaviour varied depending on the swimmer, as the variations of codes in each round produced distinct configurations to determine the differences between cycles for the same swimmer. It was concluded that the instrument used in this study plays an important role through the existence of stable behaviour in the breaststroke technique. It was also concluded that there are distinct patterns and behaviours between swimmers during each lap of the race.
- Neuromuscular and motor patterns in breaststroke techniquePublication . Conceição, Ana; Silva, António; Barbosa, Tiago; Campaniço, Jorge; Louro, HugoAbstract – Te aim of this study was to analyze the inter-temporal neuromuscular and motor patterns in breaststroke technique. Five national level male swimmers performed 200 m breaststroke at maximal effort. Electromyography data onbiceps brachii, deltoid anterior, pectoralis major and triceps brachiiwere analysed. Te relative duration of active and non-active phase and the average rectifed value for the neuromuscular patterns were recorded. Te swim bouts were videotaped in sagittal plane with a pair of cameras and the Teme software 5.0 was used toanalyse the detected patterns in each swimmer. Te neuromuscular pattern revealed that by the average rectifed value the biceps brachiiand triceps brachiiwere increased at the end of the test for swimmers 1 and 5, while biceps brachii, deltoid anteriorand pectoralis majorwere increased for swimmers 2 and 4. Different motor patterns between cycles, and between swimmers were observed.We found similarities between the swimmers, adjusting their style to the technical model. Te absence of a neuromuscular pattern for all swimmers could be related to different technical models used by each swimmer, as presented in the motor patterns. Tese fndings suggested that each swimmers adapted their own motor and neuromuscular pattern in a unique and distinct way
- Natação - Estudos de Metodologia ObservacionalPublication . Louro, Hugo; Campaniço, Jorge; Conceição, Ana; Matos, TelmoAo criar instrumentos de observação das técnicas procuramos identificar os comportamentos técnicos e relacionar com às características dos nadadores, Martin et al., (2001) referem que em natação quando se fala de técnica adequada e boa, esta tem de atingir um ótimo nível de eficácia e de estabilidade. Bompa (2005) definiu de forma clara e simples a técnica como a maneira pela qual uma habilidade é desempenhada. Ao registar os comportamentos criamos eventos individuais que quando relacionados criam padrões comportamentais dos nadadores, definindo assim o estilo do nadador.