Long-term dynamics in physical activity behaviour across the transition to parenthood

Area of Science:

• Public Health
• Sociology
• Exercise Science

Background:

• The transition to parenthood is a significant life event that can impact health behaviors.
• Understanding changes in physical activity during this period is crucial for public health interventions.

Purpose of the Study:

• To investigate the relationship between the transition to parenthood and moderate-to-vigorous physical activity (MVPA) in Australian men and women.
• To identify gender-specific patterns in MVPA changes around childbirth.

Main Methods:

• Utilized 12 years of panel data from the Household, Income and Labour Dynamics in Australia Survey.
• Employed a piecewise pre/post fixed-effect modeling strategy to analyze non-linear associations and control for unobserved individual factors.

Main Results:

• Both men and women showed decreased MVPA in the years leading up to the birth of their first child.
• Men experienced an abrupt decline in MVPA post-birth, while women exhibited a smooth, non-linear decreasing trend.
• Neither gender recovered their pre-parenthood MVPA levels in the years following childbirth.

Conclusions:

• Parenthood is a critical factor associated with long-term reductions in MVPA, with a more pronounced effect on women's behavior.
• Public health strategies aiming to promote physical activity should consider parenthood as a key period for intervention.
• The analytical model can be extended to examine other life-course transitions and their impact on physical activity.