Effects of exercise on back pain in pregnancy

描述（由申请人提供）：背痛是孕妇常见的健康问题。背痛可能会产生重要的不良后果，包括生活质量降低和在工作和家庭中良好运作的能力降低。考虑到许多妇女在怀孕期间不愿意服用药物，考虑使用非药物方法来减少背痛和改善生活质量是有用的。中等强度的抗阻运动训练提供了一种减轻孕妇背痛的有效方法。该项目的广泛目标是进一步了解中等强度抗阻运动训练对孕妇健康的影响。中等强度的有氧运动已被发现是安全和健康的孕妇，但很少有人知道中等强度的阻力运动对健康的影响。因此，本研究的具体目的是检验以下假设：（1）在妊娠中期和妊娠晚期每周进行两次为期16周的腿部、背部、腹部和躯干肌肉组织的中等强度抗阻运动训练，将显著减轻背痛;（2）抗阻运动训练计划将显著减轻妊娠引起的背部功能丧失;（3）抗阻运动训练计划将显著改善疼痛相关的生活质量。为了实现这些目标，将招募180名患有背痛的健康孕妇，开始在其妊娠中期的前两个月参与研究。参与者将被随机分配进行16周的每周两次监督的中等强度阻力运动计划，妊娠相关教育计划（即，安慰剂条件）或等待列表对照条件。将使用背痛、背部功能和疼痛相关生活质量的有效指标来检验随机对照试验的结局。迫切需要更多地了解孕妇抗阻运动训练的健康后果，部分原因是越来越多的妇女在怀孕期间进行抗阻运动。不幸的是，目前护士、医生和其他卫生专业人员缺乏关于孕妇中等强度阻力运动训练相关健康结果的科学信息。

DESCRIPTION (provided by applicant): Back pain is a common health problem among pregnant women. Back pain can have important adverse consequences including a reduced quality of life and a reduced ability to function well both at work and at home. Given that many women prefer to avoid taking medications during pregnancy it is useful to consider non-pharmacological approaches to minimizing back pain and improving quality of life. Moderate intensity resistance exercise training offers a plausibly effective method for attenuating back pain among pregnant women. The broad objective of this project is to further our understanding of the health consequences of moderate intensity resistance exercise training for pregnant women. Moderate intensity aerobic exercise has been found to be safe and healthful for pregnant women, but little is known about the health effects of moderate intensity resistance exercise. Accordingly, the specific aims of the proposed research are to test the hypotheses that: (1) 16 weeks of moderate intensity resistance exercise training of the legs, back, abdominal and truck musculature performed twice weekly during the second and third trimesters will significantly attenuate back pain; (2) the resistance exercise training program will significantly attenuate pregnancy-induced loss of back function; and (3) the resistance exercise training program will significantly improve pain-related quality of life. To accomplish these goals 180 healthy pregnant women with back pain will be recruited to begin participating during the first two months of their second trimester. The participants will be randomized to perform sixteen weeks of either a supervised twice weekly, moderate intensity resistance exercise program, a pregnancy-related education program (i.e., placebo condition), or a waiting list control condition. Valid measures of back pain, back function and pain-related quality of life will be used to test the outcome of the randomized controlled trial. There is an urgent need to learn more about the health consequences of resistance exercise training among pregnant women in part because women increasingly are performing resistance exercise during their pregnancy. Unfortunately, at the present time there is a lack of scientific information available to nurses, physicians and other health professionals concerning the health outcomes associated with moderate intensity resistance exercise training among pregnant women.