1. How to establish increased protein intake in a blended lifestyle intervention in community-dwelling older adults? Subgroup-analysis of the vitamin rct
- Author
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Bart Visser, Peter J.M. Weijs, Michael Tieland, S. Verlaan, Jantine van den Helder, Raoul H.H. Engelbert, Sumit Mehra, Ben Kröse, Lectoraat Voeding en Beweging, Urban Vitality, Kenniscentrum Create-It, Psychologie voor een Duurzame Stad, Lectoraat Oefentherapie, Hogeschool van Amsterdam, and Lectoraat Fysiotherapie - Transitie van Zorg bij Complexe Patiënten
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Vitamin ,Meal ,Nutrition and Dietetics ,business.industry ,Endocrinology, Diabetes and Metabolism ,Subgroup analysis ,Protein intake ,law.invention ,chemistry.chemical_compound ,Animal science ,chemistry ,Randomized controlled trial ,Ageing ,law ,Lifestyle intervention ,Group interaction ,Medicine ,business - Abstract
Rationale: The dietary protein counselling of the VITAMIN trial showed to be effective in increasing the protein intake in community-dwelling older adults up to 1.41 g/kg/day after 6-months intervention and sustaining this intake up to 1.24 g/kg/day at 12-months. In this sub-analysis we determine how the increased protein intake was established. Methods: The VITAMIN (VITal AMsterdam older adults IN the city) RCT randomised older adults into: control, exercise, or exercise plus dietary counselling (protein) group. The dietary counselling intervention was blended, by use of face-to-face contacts and videoconferencing during a 6-month intervention, followed by a 6-month follow-up. Dietary intake was measured by a 3d dietary record at 0, 6 and 12 months (m). Sub-group analysis included characterisation of protein sources, product groups, resulting amino acid intake, and intake per meal moment. Linear Mixed Models were performed with SPSSv25; whereas time and time*group interaction were defined as fixed factors, and the protein group as reference. Results: In total 212 subjects were eligible for analysis (72.2 ± 6.3y), with an average protein intake at baseline of 77.8 (20) g/day and 1.08 (0.3) g/kg/day. Animal protein (g) accounted as major source (6m +25.6 (2.7) p
- Published
- 2020
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