Effectiveness of a 12-week Movement Intervention on Heart Rate Variability and Self-compassion Among New Mothers

Study Overview
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Brief Summary
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This is a mixed-methods randomized controlled trial assessing the effects of an online and in person 12-week movement intervention compared to an education only control group on heart rate variability, self-compassion, psychological well-being, fatigue, exercise self-efficacy, physical activity identity, and body image in postpartum women.

Detailed Description
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This is a mixed-methods randomized controlled trial assessing the effects of an online and in person 12-week movement intervention compared to an education only control group on heart rate variability, self-compassion, psychological well-being, fatigue, exercise self-efficacy, physical activity identity, and body image in postpartum women. Participants will be randomized into one of three groups: 1) in person yoga movement intervention, 2) online yoga movement intervention, 3) education group. Heart rate variability will be measured using a chest strap at the beginning and end of the 12 week intervention. At the beginning and end of the 12 week intervention, and at 3-months post-intervention, questionnaires will be completed online to assess self-compassion, psychological well-being, fatigue, exercise self-efficacy, physical activity identity, and body image.

Official Title
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MOM-mi: Exploring the Effectiveness of a 12-week Movement Intervention on Heart Rate Variability and Self-compassion Among New Mothers

Conditions
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Pregnancy Related

Intervention / Treatment
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* Behavioral: Yoga movement intervention
* Other: Education booklet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Women who have given birth to a child within the past 6 months and who are cleared for physical activity by their health care provider. Exclusion Criteria: Participants who have a medical condition that precludes them passing the Get Active questionnaire Women not clear for physical activity by a health care provider Participants who are not able to attend classes at pre-specified times

Ages Eligible for Study
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Minimum Age: 19 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: In person movement intervention<br>In person yoga movement intervention (Les Mills BodyBalance: mixture of yoga, tai chi, pilates) two times per week | Behavioral: Yoga movement intervention<br>* Mixture of yoga, tai chi, pilates. Will be delivered in person (experimental) and online (active comparator)<br>* Other names: Les Mills BodyFlow;|
| Active Comparator: Online yoga movement intervention<br>Pre-recorded video of yoga movement intervention (Les Mills BodyBalance: mixture of yoga, tai chi, pilates) two times per week | Behavioral: Yoga movement intervention<br>* Mixture of yoga, tai chi, pilates. Will be delivered in person (experimental) and online (active comparator)<br>* Other names: Les Mills BodyFlow;|
| Active Comparator: Education<br>Education control group using a recently published postpartum physical activity guidebook through the Sport Information Resource Center | Other: Education booklet<br>* Recently published postpartum physical activity guidebook through the Sport Information Resource Center of Canada<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Heart rate variability | Waking RMSDD heart rate variability (chest strap) | Baseline, 12 weeks | 
| Self compassion | Self-compassion scale, maximum score 125. Minimum score 25. Higher score is a better outcome. | Baseline, 12 weeks, 3 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Physical activity | Type, amount and frequency of planned exercise, and walking bouts | Baseline, 12 weeks, 3 months | 
| Self efficacy | Self-efficacy and barrier to exercise scale. Maximum score of 36. Minimum score of 9. Lower score is a better outcome. | Baseline, 12 weeks, 3 months | 
| Fear of self-compassion | Fear of self-compassion scale. Maximum score of 60. Minimum score of 0. Lower score is a better outcome. | Baseline, 12 weeks, 3 months | 
| Fatigue | Multidimensional fatigue inventory scale. Maximum score is 100. Minimum score is 20. Lower score is a better outcome. | Baseline, 12 weeks, 3 months | 
| Sleep quality | Patient Reported Outcomes Measurement Information System (PROMIS) sleep questionnaire. Maximum score of 40. Minimum score of 8. Lower score is a better outcome. | Baseline, 12 weeks, 3 months | 
| Perceived stress | Perceived stress scale. Maximum score of 40. Minimum score of 0. Lower score is a better outcome. | Baseline, 12 weeks, 3 months | 
| Physical activity identify | Athlete identity measurement scale. Maximum score of 49. Minimum score is 7. Higher score is better outcome. | Baseline, 12 weeks, 3 months | 
| Body image | Body dissatisfaction scale. Maximum score of 48. Minimum score of 8. Lower score is better outcome. | Baseline, 12 weeks, 3 months | 
| Motivation for exercise | Psychological needs for exercise scale. Maximum score of 55. Minimum score of 11. Higher score is better outcome. | Baseline, 12 weeks, 3 months | 
| Postpartum depression | Edinburgh postnatal depression scale. Maximum score is 30. Minimum score is 0. Lower score is better outcome. | Baseline, 12 weeks, 3 months | 
| Anxiety | State-trait anxiety scale. Maximum score of 80. Minimum score of 20. Higher score is better outcome. | Baseline, 12 weeks, 3 months |