The influence of physical activity in water on sleep quality in pregnant women: A randomised trial

Publication date: Available online 8 July 2017
Source:Women and Birth
Author(s): R. Rodriguez-Blanque, J.C. Sánchez-García, A.M. Sánchez-López, N. Mur-Villar, M.J. Aguilar-Cordero
IntroductionSleep is a physiological state of self-regulation. The international classification of sleep disorders now includes as a new category those occurring during pregnancy. Regular physical activity is known to improve the quality of life, one aspect of which is sleep quality. During pregnancy, physical activity is decreased but should not be eliminated, as studies have reported a high correlation between sleep disorders and the absence of physical activity. Regular physical exercise during pregnancy, whether performed in water or out of it, provides greater control of gestational weight gain. Furthermore, the reduced weight gain during pregnancy, as a result of physical exercise, is associated with greater physical resistance to the demands of childbirth, combats the fatigue caused by pregnancy and reduces back pain. All of these outcomes tend to enhance sleep quality, among other beneficial effects.ObjectiveTo determine whether, in pregnant women, there is an association between moderate-intensity physical activity in an aquatic environment and sleep quality.Material and methodsA randomised clinical trial was conducted with a sample of 140 pregnant women aged 21–43 years, divided into two groups; Intervention Group and Control Group. The women were recruited in the twelfth week of gestation and took part in the [Study of] Water Exercise in Pregnancy programme from week 20 to week 37. Sleep quality was evaluated in the first and third trimesters of pregnancy, using the Pittsburgh Sleep Quality Index questionnaire.ResultsThe Mann–Whitney U test showed that the results obtained were statistically significant (p<0.05). In the Intervention Group, 44 of the women (65.67%) were classified as "poor sleepers" versus 62 women (92.54%) in the Control Group.ConclusionsThe [Study of] Water Exercise in Pregnancy method improves the quality of sleep in pregnant women, both subjectively and in terms of latency, duration and efficiency.



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