MON-PP209: Effect of a High Protein Diet and/or Resistance Exercise on Preservation of Fat Free Mass During Weight Loss in Overweight Older Adults: a Randomized Controlled Trial

Abstract

Correspondence a.verreijen@hva.nl, Amely Verreijen, MSc., School of Sports and Nutrition, Amsterdam University of Applied Sciences, Dr. Meurerlaan 8, 1067 AM, Amsterdam, Netherlands Conclusion Although the targeted high protein diet was not completely achieved, the contrast of 23 gram protein per day had no effect on changes in FFM and FM during weight loss in older overweight subjects. Supervised resistance exercise increased the loss of relative FM but had no effect on FFM. However, in the group receiving the protein and exercise combination a significant increase in FFM was observed. Results At baseline, mean±SD BMI was 32±4 kg/m2. During intervention, protein intake was 1.15±0.27 g/kg in the protein groups vs. 0.93±0.19 g/kg in the non-protein groups, corresponding to a 23±5 g/day (p<0.001) higher protein intake. Mean adherence to the exercise program was 2.8±0.3 times/week. No interaction was observed between protein*exercise for all outcomes. Overall, subjects lost weight (-3.1±2.8 kg, p<0.01) without significant between-group effects, and had no significant change in FFM (+0.4±1.9 kg, p=0.12). Effects of protein and effects of exercise on body composition are displayed in the Table and Figure. Table: Outcome measures for protein vs. non-protein groups and for exercise vs. non-exercise groups in means ± SD. Protein (n=40) Non-protein (n=32) Protein effect