College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA.
Center for Health Promotion and Disease Prevention, Edson College of Nursing and Health Innovation, Arizona State University, Phoenix, AZ 85004, USA.
Nutrients. 2020 Feb 11;12(2):450. doi: 10.3390/nu12020450.
Resting energy expenditure (REE) comprises 60% of total energy expenditure and variations may be associated with gestational weight gain (GWG) or maternal diet. The objective of this study was to examine the impact of metabolic tracking on GWG and the association with maternal macronutrients. Pregnant women aged 29.8 ± 4.9 years (78.6% non-Hispanic, White) with gestational age (GA) < 17 week were randomized to Breezing™ ( = 16) or control ( = 12) groups for 13 weeks. REE by Breezing™ indirect calorimetry, anthropometrics and dietary intake were collected every two weeks. Early (14-21 weeks), late (21-28 weeks), and overall (14-28 weeks) changes in macronutrients and GWG were calculated. The Breezing™ group had a significantly greater rate of GWG [F (1,23) = 6.8, = 0.02] in the latter half of the second trimester. Late (-155.3 ± 309.2 vs. 207.1 ± 416.5 kcal, p = 0.01) and overall (-143.8 ± 339.2 vs. 191.8 ± 422.2 kcal, p = 0.03) changes in energy consumption were significantly different between Breezing™ and control groups, respectively. Early changes in REE were positively correlated with overall changes in carbohydrates (r = 0.58, = 0.02). Regular metabolism tracking alone did not have an impact on GWG. Early shifts in REE might impact GWG later in pregnancy. Investigation in a larger population from preconception through postpartum is needed.
静息能量消耗（REE）占总能量消耗的 60%，其变化可能与妊娠体重增加（GWG）或产妇饮食有关。本研究旨在探讨代谢追踪对 GWG 的影响及其与母体宏量营养素的关系。将年龄为 29.8±4.9 岁（78.6%非西班牙裔，白人）、妊娠周数<17 周的孕妇随机分为 Breezing™组（n=16）和对照组（n=12），进行为期 13 周的研究。每两周收集一次 Breezing™间接测热法、人体测量学和饮食摄入的 REE。计算宏量营养素和 GWG 的早期（14-21 周）、晚期（21-28 周）和总体（14-28 周）变化。Breezing™组在妊娠中期后半段 GWG 增长速度明显更快[F（1,23）=6.8， =0.02]。晚期（-155.3±309.2 比 207.1±416.5 kcal，p=0.01）和总体（-143.8±339.2 比 191.8±422.2 kcal，p=0.03）能量消耗的变化在 Breezing™组和对照组之间分别存在显著差异。REE 的早期变化与碳水化合物的总体变化呈正相关（r=0.58， =0.02）。单独定期进行代谢追踪对 GWG 没有影响。REE 的早期变化可能会对妊娠后期的 GWG 产生影响。需要在更大的人群中进行从孕前到产后的研究。
