The (cost) effectiveness of increasing daily protein intake to 1.2 gram per kilo body weight on physical functioning in community-dwelling older adults with a habitual daily protein intake < 1.0 gram per kilo body weight
- Conditions
- Fysiek functionerenPhysical functioning
- Registration Number
- NL-OMON48815
- Lead Sponsor
- Vrije Universiteit
- Brief Summary
Trial is onging in other countries
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Not specified
- Target Recruitment
- 132
- Age * 65 years;
- Community-dwelling;
- Lower protein intake defined as both a probability score above a certain cutoff on the protein screener (www.proteinscreener.nl) as well as based on actual protein intake assessed by 24-hour recalls. The protein screener was developed and validated using an extended FFQ among Dutch older adults. The cutoff will be chosen based on results of different studies in which we compare the probability scores of the protein screener with protein intake as measured with food diaries and/or dietary recalls. We will then choose the probability score that is most closely associated with a protein intake < 1.0 g/kg body weight/day. This probably score reflects older adults with a higher probability on a protein intake < 1.0 g/kg body weight/d than a general sample of older adults;
- Able to eat independently;
- Willing to eat our provided protein-enriched food products and change food habits;
- Able to speak, write and read the Dutch language;
- Able to walk 400 meter, with or without the help of a walking cane (self-reported).
- Bedridden or wheelchair bound;
- Individuals who do not go outside;
- Individuals with bad hearing (who cannot hear without a hearing aid);
- Diagnosed with diabetes mellitus type I;
- Diagnosed with diabetes mellitus type 2 and starting with insulin;
- Diagnosed with severe kidney disease;
- Diagnosed with Parkinson*s disease;
- Current treatment of cancer (with the exception of basal cell carcinoma);
- BMI < 18.5 kg/m2 (self-reported, and assessed at study baseline);
- Overweight, defined as BMI > 32.0 kg/m2 (self-reported, and assessed at study baseline);
- Vegan;
- Allergies to certain food products (such as peanuts, gluten);
- Alcohol abuse past 6 months (AUDIT-C * 2);
- Diagnosed with an eating disorder (self-reported);
- Current participation to supervised behavioral or lifestyle intervention that intervenes with PROMISS intervention;
- Planning to move out of the study area in the next 6 months;
- Actively trying to lose or gain weight;
- Not able to complete the 400 meter walk test (self-reported, and assessed at study baseline).
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method <p>The primary outcome of this study is change in walk time on the 400 meter walk<br /><br>test.</p><br>
- Secondary Outcome Measures
Name Time Method <p>Secondary outcomes are change in dietary intake (including macro- and<br /><br>micronutrients), malnutrition prevalence, physical performance, mobility<br /><br>limitations, muscle strength, body weight and body composition, frailty status,<br /><br>quality of life, and health care costs.</p><br>