The Effects of Aerobic Water Exercise on Pregnancy

"The hydrotherapy program of Prevedel et al.14 was used. One-hour sessions, led by a physiotherapist under the supervision of an obstetrician, were held three times a week in an indoor swimming-pool heated at 28oC-32oC, and consisted of exercises of moderate intensity (60-70% of maximum heart rate). Subgroups of up to 10 subjects participated in each session. Sessions were offered at different times of the day (morning, afternoon, and evening).~The exercises included 5 phases: stretching, warm up, endurance training, strength training and relaxation with breathing exercises, in accordance with the recommendations of ACOG11."