Table 1 Inclusion and exclusion criteria

Experienced a stillbirth within the past 6 weeks to 24 months

Unstable psychiatric condition (i.e., psychosis; suicidal ideation with plan)

Clinical levels of posttraumatic stress symptoms (score of ≥33 on the Impact of Events Scale)

Pregnant at time of enrollment

≥18 years of age

Practiced yoga at least 60 min/week

Resided in the U.S.

Scored 20–27 on the Patient Health Questionnaire-9 (i.e., severe depression)

Able to read/understand/speak English

At risk for suicide based on follow-up phone assessment after positive screen (score of 1, 2, or 3 on the last question on the PHQ-9)

Underactive (≤120 min/week of moderate intensity physical activity)

Willing to be randomized

Regular internet access via mobile phone, desktop/laptop computer, tablet etc.

Answered “no” to all items on the PAR-Q (i.e., can participate in exercise safely) or given clearance by a doctor