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TRiM – Trial for Reducing Weight Retention in New Mums: A randomised controlled trial investigating the effectiveness of an innovative postpartum weight loss program.

A randomised controlled trial investigating the effectiveness of an innovative postpartum weight loss program in new mothers.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12611000873921
Acronym
TRiM
Enrollment
88
Registered
2011-08-16
Start date
2010-08-31
Completion date
2011-07-07
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Retention of weight gained during pregnancy contributes to overweight and obesity and subsequent chronic disease risk, with the associated personal, financial and public health burdens. Women who are overweight or obese at beginning of pregnancy are more likely to gain excess weight and retain this weight after pregnancy. Women who do not lose weight by 6 months postpartum are more likely to be overweight or obese over the long term. Approximately one third of women who deliver at the MMH are overweight or obese at the beginning of pregnancy. A 2008 MMH Nutrition and Dietetic audit demonstrated that, of the 102 women surveyed, 50% of the women who were overweight, 75% of women who were obese and 100% of women who were morbidly obese gained in excess of their recommended weight gain range for pregnancy. Our MMH patients are at very high risk of retaining weight after pregnancy and developing associated chronic diseases, thus implementation of weight management interventions is urgently required. Limited data exist regarding the most effective methods of supporting weight loss after pregnancy. However, diet and exercise, with behavioural change and support are known to be important elements to be included in any program. Usual models of weight loss care (e.g. multiple group/clinic attendances) are not as appropriate in this population group due to childrearing demands. Our research aim is to develop, implement and evaluate an innovative postpartum weight management program that includes evidence-based behaviour change strategies to support postpartum weight management that is delivered in a format suitable for MMH postnatal (PN) patients.

Interventions

Delivery of a program that combines self-monitoring delivered in a low-intensity delivery format (email and/or postal), paired with evidence-based postnatal nutrition and healthy lifestyle information - initiated in the late antenatal period through to 6 months postpartum. The intervention starts with a 1 hour nutrition assessment, goal setting and counselling session (delivered antenatally at approximately 36 weeks) delivered in line with the Australian Guide to Healthy Eating (+/- kilojoule re

Delivery of a program that combines self-monitoring delivered in a low-intensity delivery format (email and/or postal), paired with evidence-based postnatal nutrition and healthy lifestyle information - initiated in the late antenatal period through to 6 months postpartum. The intervention starts with a 1 hour nutrition assessment, goal setting and counselling session (delivered antenatally at approximately 36 weeks) delivered in line with the Australian Guide to Healthy Eating (+/- kilojoule restriction of 2000kJ/day, depending on lactation status), followed by fortnightly information and goal setting sheets posted from 6 weeks until 3 months postpartum, then monthly until 6 months. The sheets contain information on: nutrition post-pregnancy (+/-breastfeeding) + self monitoring (food groups; weight), practical ideas for cooking, shopping, larder, fridge, freezer; physical activity; balanced life.

Sponsors

Dr Shelley Wilkinson
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

pre-pregnancy BMI > 25kg/m2, can read and speak English to a level that allows completion of intervention worksheets, and > 18years.

Exclusion criteria

live outside the MMH catchment area, have delivered <36/40, have a pre-pregnancy diagnosis of type 1 or type 2 diabetes mellitus, or have a history of substance use or have a severe medical or psychological diagnosis that would prevent participation within the intervention

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026