Cardiorespiratory Responses of Post-Menopausal Women to Different Water Exercises

The aim of the current study is to analyze and compare oxygen uptake (VO2) and heart rate (HR) in different water exercises. Eight postmenopausal women participated in a set of 4 sessions in water. Eight different exercises were randomly coupled for the 4 sessions. Each exercise was executed at a rate of 60 beats/min for 4 minutes with rest intervals of 30 min. A repeated-measures ANOVA and Bonferroni’s post hoc test were used to test for statistical differences at α \u3c .05. Significant differences were seen in HR and VO2 between some pairs of the 8 exercises. These results suggest that water-exercises classes should be prescribed based on percentages of maximal HR or VO2, not on a fixed cadence, because different exercises correspond to different percentages of maximal effort

Comparison of Energy Expenditure Between Continuous and Interval Water Aerobic Routines

The aim of present study was to analyze the oxygen uptake, the heart rate, and the energetic expenditure of women in two water aerobics routines: continuous and interval. The sample comprised ten voluntary active women who performed two water aerobics routines with a minimal interval of 48 hours and randomized order. Each routine was performed with the same exercises and duration, along 32 minutes. The intensity was controlled through Borg’s rate of perceived exertion (RPE), adopting RPE 13 for continuous routine and RPE 17 and RPE 9 for interval routines. It was utilized the paired t test, with the level of significance established at α \u3c .05 (SPSS version 13.0). For all variables, it has been found in interval significantly higher values than continuous routine. Thus, it can be concluded that the interval routine is more intense, being indicted for people looking for a major energy expenditure