Association Between Change in Physical Activity During Pregnancy and Infant Birth Weight.

ABSTRACT:

Objective

We assessed whether total, recreational, and non-recreational physical activity (PA) assessed twice during pregnancy, and its change, were associated with infant birth weight and small for gestational age (SGA).

Methods

We included 1467 Pregnancy, Infection, and Nutrition 3 Study participants who self-reported PA at time 1 (T1: 17-22 weeks' gestation) and time 2 (T2: 27-30 weeks' gestation). We assessed last week absolute intensities of PA (moderate: 4.7-7.1 METs; and vigorous: > 7.1 METs) and perceived intensities. Change in hours/week of PA was assessed continuously or categorically (increase or decrease ≥ 1 hour, and no change). Associations of continuous PA hours/week at T1, T2, and its change, with sex-specific z-scores of birth weight, were assessed using mul

SUBMITTER: Peter-Marske KM 

PROVIDER: S-EPMC10023475 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature