Samenvatting

Rationale: In order to optimize training effects for prevention of sarcopenia and frailty in community dwelling older adults a higher daily protein intake is required. To increase total daily protein intake to optimal levels (minimal 1.2 g/kg/d, optimal 1.5 g/kg/d) during a resistance exercise training of 12 weeks we use blended dietary counseling and protein supplementation with protein enriched food products. This study focusses on 1) first effects; 2) the adherence to this protein intervention. Methods: Preliminary data of the TEAMS RCT is available for 41 community dwelling older adults with physical limitations or receiving home-care (age ≥ 65y): 23 in exercise only (EX) and 18 in exercise+protein (EXpro) group. Dietary intake was measured by a 3d dietary record at baseline and after 12 weeks of intervention. A two-way mixed ANOVA with time, group, and time*group interaction was performed. Adherence data was logged by a dietician coach. Results: The mean age of the subjects was 74±6y, of which 73% were females. SPPB score was 9.5±1.9, BMI 28.9±5.0 and protein intake 0.9±0.3 g/kgBW/d. Table 1 shows improved protein intake over time in the EXpro compared to EX group (p=0.014). ANOVA revealed significant effect of time, and time*group (p<0.05). Adherence to the blended coaching sessions was high (95%), with the face-to-face sessions (88%) and tele-coaching (100%). In the EXpro group 59% of the subjects increased protein intake above the minimum intake level, compared to 38% in the EX group. Conclusion: This study shows that blended dietary counseling with use of protein supplementation improves protein intake sufficiently in exercising community dwelling older adults. Blended counseling and the use of protein enriched food products is a promising strategy for dieticians in the prevention of sarcopenia and frailty.