Department of Human Development and Family Studies, Colorado State University, Fort Collins, CO 80523, USA.
Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO 80045, USA.
Int J Environ Res Public Health. 2021 Feb 24;18(5):2216. doi: 10.3390/ijerph18052216.
During pregnancy, physical activity relates to better maternal and child mental and physical health. Accelerometry is thought to be effective for assessing free-living physical activity, but the feasibility/acceptability of accelerometer use in pregnant adolescents has not been reported. In this short communication, we conducted secondary analysis of a small pilot study to describe the feasibility/acceptability of accelerometry in pregnant adolescents and the preliminary results of physical activity characteristics. Participants were recruited from a multidisciplinary adolescent perinatal clinic. Physical activity was assessed with wrist-worn accelerometers. Feasibility was described as median days of valid wear (≥10 h of wear/day) for the total sample and the number/percentage of participants with ≥4 days of valid wear. Sensitivity analyses of wear time were performed. Acceptability ratings were collected by structured interview. Thirty-six pregnant (14.6 ± 2.1 gestational weeks) adolescents (17.9 ± 1.0 years) participated. Median days of valid wear were 4 days. Seventeen participants (51.5%) had ≥4 days of valid wear. There were no differences in characteristics of adolescents with vs. without ≥4 days of valid wear. Twenty participants (60.6%) had ≥3 days of valid wear, 24 (72.7%) ≥2 valid days, and 27 (81.8%) ≥1 valid wear day. Acceptability ratings were neutral. Assessing physical activity with accelerometry in pregnant adolescents was neither feasible nor acceptable with the current conditions. Future research should investigate additional incentives and the potential utility of a lower wear-time criterion in pregnant adolescents.
怀孕期间，身体活动与母婴身心健康状况的改善有关。加速度计被认为是评估自由生活身体活动的有效方法，但尚未报道其在孕妇青少年中的可行性/可接受性。在本简短通讯中，我们对一项小型试点研究进行了二次分析，以描述加速度计在孕妇青少年中的可行性/可接受性以及身体活动特征的初步结果。参与者从多学科青少年围产期诊所招募。使用腕戴式加速度计评估身体活动。可行性描述为总样本中有效佩戴天数的中位数（≥10 小时/天）和有≥4 天有效佩戴天数的参与者人数/百分比。对佩戴时间进行了敏感性分析。通过结构化访谈收集可接受性评分。共有 36 名孕妇（14.6±2.1 孕周）青少年（17.9±1.0 岁）参与了研究。有效佩戴天数的中位数为 4 天。有 17 名参与者（51.5%）有≥4 天的有效佩戴天数。有和没有≥4 天有效佩戴天数的青少年在特征上没有差异。有 20 名参与者（60.6%）有≥3 天的有效佩戴天数，24 名（72.7%）有≥2 天有效佩戴天数，27 名（81.8%）有≥1 天有效佩戴天数。可接受性评分呈中性。在当前条件下，使用加速度计评估孕妇青少年的身体活动既不可行也不可接受。未来的研究应探讨额外的激励措施以及在孕妇青少年中使用较低佩戴时间标准的潜在效用。
