The sedentary behavior reduction in pregnancy intervention (SPRING) pilot and feasibility randomized trial

Area of Science:

• Obstetrics and Gynecology
• Public Health
• Behavioral Science

Background:

• Pregnant individuals often do not meet physical activity guidelines.
• High sedentary behavior during pregnancy is linked to adverse outcomes.
• Existing interventions may be too intense for some pregnant individuals.

Purpose of the Study:

• To assess the feasibility and acceptability of the Sedentary Behavior Reduction in Pregnancy Intervention (SPRING).
• To evaluate the initial efficacy of a lower-intensity intervention targeting reduced sedentary time, increased standing, and steps.
• To explore the impact on pregnancy health outcomes.

Main Methods:

• A pilot randomized trial with pregnant individuals at risk for adverse pregnancy outcomes.
• Intervention group received remote coaching, wearable monitor, adjustable workstation, and online support.
• Control group received no contact; outcomes assessed remotely via activPAL and medical records.

Main Results:

• High retention rates (90% and 83%) were observed.
• Intervention participants significantly decreased sedentary time (-0.84 h/day) and increased standing (+0.77 h/day).
• No significant increase in daily steps was observed compared to controls.

Conclusions:

• The SPRING intervention is feasible and acceptable for pregnant individuals at risk for adverse pregnancy outcomes.
• This lower-intensity approach may be a viable alternative to vigorous physical activity recommendations during pregnancy.
• Further investigation in a larger clinical trial is warranted.