Pregnancy As Window of Opportunity? A Danish RCT on Physical Activity During Pregnancy.

Pregnancy is seen as a window of opportunity for health interventions, with the potential to produce long-term health changes for mother and child. The RCT FitMum investigates the effects of different regimes of physical activity during pregnancy. We suggest that rather than hitting a window of opportunity, the trial works in choreography with different timescapes through the processes of management of time. These timescapes are characterized by linear progression and futurity, alongside composite, complex time. We reconceptualize the intervention as a navigation of flows and passages in collective efforts, providing a situated and sustainable approach to interventions.