Effect of aerobic dance on cardiorespiratory fitness in pregnant women: A randomised controlled trial
Journal article, Peer reviewed
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- Artikler / Articles 
Original versionPhysiotherapy. 2013, 99, 42-48 10.1016/j.physio.2011.11.002
Objective: To evaluate the effectiveness of aerobic dance on cardiorespiratory fitness in pregnant women. Design: Randomised controlled trial. Participants: Sixty-two primiparous women with a mean age of 30.6 [standard deviation (SD) 3.7] years randomised to exercise (n = 34) and (n = 28) control groups. Intervention: Two aerobic dance classes per week and 30 minutes of daily self-imposed physical activity for 12 weeks. Main outcome measure: Cardiorespiratory fitness, assessed using a submaximal treadmill test to establish oxygen uptake (VO2) (ml/kg/minute) at three different levels of blood lactate. Levels 1, 2 and 3 were calculated and defined as 0.5, 1.0 and 1.5 mmol/l above resting blood lactate level, respectively. Results: The women in the exercise group attended a mean of 20 (SD 12) out of 24 aerobic dance classes. Both groups had a small significant decrease in VO2 between baseline and post-intervention: the exercise group decreased from 25.8 (SD 3.3) to 24.5 (SD 3.8) ml/kg/minute and the control group decreased from 25.8 (SD 3.1) to 24.5 (SD 2.5) ml/kg/minute at Level 3 (anaerobic threshold) (mean difference in change at Level 3 = 0.1, 95% confidence interval −1.4 to 1.7; P = 0.89). There were no differences in change between the groups at any level. Conclusion: A 12-week aerobic dance programme had no effect on cardiorespiratory fitness in pregnant women.
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