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Moderately High Protein Diets During Resistance/Aerobic Exercise Training Improve Body Composition Via Positive Changes in Adiposity But Not Lean Mass Accretion
Author(s) -
Gordon Susannah,
Kim Jung Eun,
WeinheimerHaus Eileen,
Campbell Wayne
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.117.7
Subject(s) - overweight , lean body mass , obesity , medicine , zoology , fat mass , aerobic exercise , weight loss , whey protein , high protein diet , endocrinology , food science , chemistry , body weight , biology
Middle‐aged overweight/obese adults are faced with an environment of food abundance. This food excess challenges their ability to adjust eating behaviors and maintain body weight. We conducted a 36‐week diet supplementation and exercise training study where 35‐65 year‐old overweight and obese adults were exposed to a “controlled source” of potentially excess energy via 200 kcal supplements with varying amounts of maltodextrin and whey protein. The supplements were consumed 2x daily with breakfast and lunch along with their otherwise unrestricted, self‐chosen diets. Training included resistance (2 d/wk) and aerobic (1 d/wk) exercises. This retrospective data analysis assessed the effect of total protein intake (TPro) on changes in body weight and composition. 85 subjects were classified into 3 groups based on TPro: < 1.0 (low TPro, LP, n=29), 蠄 1.0 to < 1.2 (medium TPro, MP, n=24), and 蠅 1.2g•kg ‐1 •d ‐1 (high TPro, HP, n=32). Weight was measured bi‐weekly and body composition (plethysmography) every 9 weeks. Over time, LP progressively gained weight and fat mass, while MP and HP maintained weight and lost fat mass. All three groups gained lean body mass (mainly during the first 9 weeks). These findings support that moderately high protein intake improves weight control and adiposity, but does not augment lean mass accretion among exercising overweight/obese adults who are challenged by potential excess energy intake. High protein intakes do not enhance these responses. Support: US Whey Protein Res Consort; NIH T32AG025671; NIH UL1TR001108; Purdue Ingest Behav Res Ctr