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Edema of pregnancy: a comparison of water aerobics and static immersion
Kent T, Gregor J, Deardorff L, Katz V
Obstetrics and Gynecology 1999 Nov;94(5 Pt 1):726-729
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To compare the edema-relieving effects of static immersion with water aerobics. METHODS: Eighteen healthy women between 20 and 33 weeks' gestation were studied standing on land, immersed to the axilla, and participating in a water aerobics class, each for 30 minutes. RESULTS: Water aerobics and the static immersion led to a similar diuresis, 187 and 180 mL, respectively. Both were significantly greater than standing 30 minutes on land, 65 mL (p < 0.01). The dilutional effect as measured by a decline in urine specific gravity was also similar between static immersion and water aerobics and greater than standing on land (p < 0.01). Standing on land led to a small increase in leg volume compared with water aerobics or static immersion (p < 0.01). CONCLUSION: Water aerobics had diuretic and edema-relieving effects similar to static immersion. When women develop edema of pregnancy, water aerobics classes may be used as a potential treatment.
With permission from Excerpta Medica Inc.

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