Electromyographic economy during running
Abstract— Running is a series of rebound impacts on the ground that is alternated with aerial phases when none of the feet are in contact with the ground, but information using a novel technique electromyographic economy is lacking. So the objective of the study is to correlate the electromyographic economy with metabolic economy in the running at different speeds. Four individuals amateur running participated in the study. Electromyographic data and oxygen uptake were collected simultaneously at five speeds. Measurements were made of 16 muscles of the lower, trunk and upper limbs involved during running. In the analysis the data were converted from millivolts to Joules. Result only the 10 km.h-1 speed showed a difference compared to the other speeds. The behavior of the electromyographic economy was in line with gas analysis, with a coefficient of determination of 88 %. These findings suggest that the value of the electromyographic economy is lower than expected in the literature like as economy running obtained through oxygen consumption. Future research may continuous this study with more individuals and in other situations.
Keywords— Cost of transport, muscle activation, oxygen consumption, locomotion.