Strength exercise and cardiovascular responses in young women, a study of the summative effect of consecutive sets performed at different intensities (60% and 80% of 10 repetitions)

Abstract

The aim of this study was to verify the answers of the Double Product, Cardiac Frequency, Diastolic Arterial Pressure and Systolic, related to the additional effect of three successive series done on the horizontal Leg Press in different intensities (60% versus 80% of ten repetitions), with samples of eight women. All the volunteers had a historic of involvement in systematic activities of Resisted Exercise of at least six months. The test of ten repetitions was used to determine the maximum load. Three series with ten repetitions at 60% of ten repetitions were done, and later on the same procedure was done at 80% of ten repetitions. The speed of contraction was two seconds in the concentric phase, and two seconds in the eccentric phase. The DAP and SAP were checked in the rest period and between the eighth and the tenth repetition of the third series. The CF was taken in the rest period and in the end of the 3ª set our immediately afterwards. Either in the intensity of 60% or in the one of 80% of ten RM, a meaningful difference between the rest period and the third series was found in all variants checked, with the exception of the DAP. When comparing the two intensities, that is, 60% and 80% of ten repetitions, only the CF showed difference with statistic meaningfulness between the two values of the third series (p= 0.028) with the advantage to a greater intensity worked. In conclusion, the behavior of the homodynamic variants are similar in the two intensities worked, with the exception of the CF. The main indicator of overcharge was the DP that did not showed differences.