Contribution of different energy systems for rowing on the water and on different rowing ergometers / Contribuição dos sistemas energéticos na água e em diferentes ergômetros de remo

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Rowing is a sport that can be subject to environmental conditions as it is practiced outdoors. Wind, rain and cold climates can disturb or even impede the execution of rowing on the water. For that reason, indoor rowing is considered to be an important means of training. The most used form of indoor training and evaluation of athletes is the rowing ergometer Concept II. Nevertheless, outdoor rowing presents dynamic singularities compared to indoor rowing. In order to minimize differences related to rowing on a machine, the manufacturer of Concept II created a device called the slide. The aim of this study was to verify the physiological responses (oxygen consumption, cardiac frequency, lactate concentration) of rowers in three different situations: rowing on an ergometer without and with the slide and rowing on the water. Also, the energy contribution was evaluated. Eight individuals were submitted to five physical tests each. Three of the tests consisted of the simulation of a race in a distance of 2000m in each of the situations defined above, and 2 of the tests consisted of progressive effort until exhaustion in the rowing ergometer with and without the slide. The results obtained were the following a) metabolic profile, as well as energy demand in the 2000 m test was the same if completed on the rowing ergometer with or without the slide or on the water on a single scull. b) the least energy cost on the water was related to the longer time needed to complete the 2000 m test outdoors. C) the use of the slide on the ergometer did not show any changes on the physiological profile of the activity d) the use of the rowing ergometer for training of rowers has the same effect, in terms of physiological adjustments, as training on the water

ASSUNTO(S)

desempenho lactato performance lactate consumo de oxigênio oxygen consumption

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