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<p>Physical inactivity during pregnancy is problematic and associated with adverse health outcomes, including increased blood loss during labor and pre-eclampsia. The purpose of the present study was to apply the behavioral economic framework to understand physical inactivity among pregnant women. We examine the factor structure of a novel hypothetical purchase task for physical inactivity in a cross-sectional survey study, as well as examine differences in the latent variable scores in a convenience sample of two distinct populations (<i>n</i> = 68): pregnant veterans and nonveterans. Results showed that the purchase task was characterized by two latent factors: amplitude (i.e., intensity of demand for physical inactivity, α = 0.5) and persistence (i.e., demand sensitivity regarding physical inactivity, α = 0.9). After controlling for relevant demographic variables using linear regression analysis, veterans—compared to nonveterans—exhibited higher persistence (b = 1.6, <i>p</i> &lt; 0.001) and amplitude scores (b = 1.2, <i>p</i> &lt; 0.001). In summary, this study characterized a new behavioral economic measure of physical inactivity for pregnant women. Furthermore, we suggest that pregnant veterans may value physical inactivity more than pregnant nonveterans.</p>

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Examining the Hypothetical Purchase Task of Physical Inactivity: Differences in Behavioral Economic Indices among Veteran and Nonveteran Pregnant Women

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月15日

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  • Michelle R. McDaniel,
  • Juliane P. Wallace,
  • Julie Partridge,
  • Nick Weshinskey,
  • Ryan Redner,
  • Justin T. McDaniel

摘要

Physical inactivity during pregnancy is problematic and associated with adverse health outcomes, including increased blood loss during labor and pre-eclampsia. The purpose of the present study was to apply the behavioral economic framework to understand physical inactivity among pregnant women. We examine the factor structure of a novel hypothetical purchase task for physical inactivity in a cross-sectional survey study, as well as examine differences in the latent variable scores in a convenience sample of two distinct populations (n = 68): pregnant veterans and nonveterans. Results showed that the purchase task was characterized by two latent factors: amplitude (i.e., intensity of demand for physical inactivity, α = 0.5) and persistence (i.e., demand sensitivity regarding physical inactivity, α = 0.9). After controlling for relevant demographic variables using linear regression analysis, veterans—compared to nonveterans—exhibited higher persistence (b = 1.6, p < 0.001) and amplitude scores (b = 1.2, p < 0.001). In summary, this study characterized a new behavioral economic measure of physical inactivity for pregnant women. Furthermore, we suggest that pregnant veterans may value physical inactivity more than pregnant nonveterans.