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Abstract(s)
Introdução: Nos últimos anos a Hidroginástica tem sofrido um aumento significativo no número de praticantes, sendo hoje em dia uma das actividades físicas com maior espectro de idades entre os praticantes que procuram entre outros, uma melhoria da condição física. É no entanto não raramente conotada pela população mais jovem como sendo uma aula para populações idosas, que não podendo fazer parte de uma outra actividade física com uma maior intensidade, optam pela Hidroginástica. Para mudar esta mentalidade é necessário que o professor não só conheça as populações com quem trabalha mas também os níveis de intensidade que pode aplicar a cada uma delas, e como controlar esses níveis de modo a não correrem o risco de sistematicamente promoverem intensidades abaixo da capacidade de muitos praticantes.
Objectivo: Aferir a influência do grupo etário nas respostas fisiológicas, durante a execução do exercício básico de Hidroginástica “Cavalo Marinho” com aumentos progressivos da cadência.
Métodos: Foram submetidos a um protocolo de incremento progressivo da cadência musical de 15 bpm enquanto realizavam o exercício básico de Hidroginástica “cavalo marinho” 37 indivíduos. Estes estavam divididos estavam separados em dois grupos amostrais, o Grupo Idosos, ou GI (n=19, 65,06±5,77 anos) e o Grupo Jovens Adultos, ou GJA (n=18, 22,16±2,63 anos). Entre cada patamar de 6 min eram avaliadas a Percepção Subjectiva de Esforço (PSE), frequência cardíaca (FC), concentração sanguínea de lactato (CSL) e consumo de oxigénio (VO2).
Resultados: Com o aumento da cadência musical verificou-se também em ambos os grupos o aumento de todas as variáveis, com coeficientes de determinação não inferiores a 0,67 à excepção da CSL (R2 > 0,30). Com os aumentos da cadência musical, houve influência do grupo etário na resposta da CSL, do VO2 e Dispêndio Energético (DE) (p<0,05).
Conclusão: Apesar de todas as variáveis aumentarem com os incrementos de cadência e desses aumentos serem todos diferentes entre os grupos estudados, essa diferença nem sempre é causada pelo grupo etário, como é o caso da PSE, da FC e do posteriormente calculado equivalente metabólico (MET).
Introduction: In recent past years the head-out aquatic exercises has suffered a significant increase in the number of practitioners, and is today one of the physical activities with greater range of ages among practitioners seeking among others, an improvement of physical condition. It is however not rarely connoted by the younger population as a lesson for elderly populations, which opt for aerobics only because cannot be part of another physical activity with greater intensity. To change this mentality is necessary that the teacher not only knows the people which he works with but also the intensity levels that can be applied to each of them, and how to control these levels so not to take the risk of systematically promoting intensities below their capacity. Objective: To assess the influence of age group in the physiological responses during the execution of the basic head out aquatic exercise "rocking horse" with progressive increases in musical cadence. Methods: Were submitted to a progressive increase of 15 bpm musical cadence protocol while doing basic head out aquatic exercise "rocking horse" 37 individuals. They were divided into two separated groups, Seniors Group, or SI (n=19, 65.06±5.77 years) and Young Adult Group or IAG (n=18, 22.16±2.63 years). Between each bout of 6 minutes it was evaluated Rate of Perceived Exertion (RPE), heart rate (HR), blood lactate concentration (BLC) and oxygen consumption (VO2). Results: It was found in both groups an increase of all variables with the increase of musical cadence, with an determination quotient of not less than 0.67 exception made for BLC that obtained an R2> 0.30. With the increasing musical cadence, it was also found no influence of the age group in BLC, VO2 and energetic expenditure (EE) responses (p <0.05). Conclusion: Despite all the variables increase with cadence increments and these increases are all different between the two groups, this difference is not always caused by age group, as is the case of RPE, HR and the post-hoc calculated metabolic equivalent of task (MET).
Introduction: In recent past years the head-out aquatic exercises has suffered a significant increase in the number of practitioners, and is today one of the physical activities with greater range of ages among practitioners seeking among others, an improvement of physical condition. It is however not rarely connoted by the younger population as a lesson for elderly populations, which opt for aerobics only because cannot be part of another physical activity with greater intensity. To change this mentality is necessary that the teacher not only knows the people which he works with but also the intensity levels that can be applied to each of them, and how to control these levels so not to take the risk of systematically promoting intensities below their capacity. Objective: To assess the influence of age group in the physiological responses during the execution of the basic head out aquatic exercise "rocking horse" with progressive increases in musical cadence. Methods: Were submitted to a progressive increase of 15 bpm musical cadence protocol while doing basic head out aquatic exercise "rocking horse" 37 individuals. They were divided into two separated groups, Seniors Group, or SI (n=19, 65.06±5.77 years) and Young Adult Group or IAG (n=18, 22.16±2.63 years). Between each bout of 6 minutes it was evaluated Rate of Perceived Exertion (RPE), heart rate (HR), blood lactate concentration (BLC) and oxygen consumption (VO2). Results: It was found in both groups an increase of all variables with the increase of musical cadence, with an determination quotient of not less than 0.67 exception made for BLC that obtained an R2> 0.30. With the increasing musical cadence, it was also found no influence of the age group in BLC, VO2 and energetic expenditure (EE) responses (p <0.05). Conclusion: Despite all the variables increase with cadence increments and these increases are all different between the two groups, this difference is not always caused by age group, as is the case of RPE, HR and the post-hoc calculated metabolic equivalent of task (MET).
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Keywords
Jovens adultos Idosos Hidroginástica Cadência musical R4