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Protein intake and yoga influence whole body protein turnover in middle‐aged women
Author(s) -
Colletto Megan,
Rodriguez Jose,
DelFavero Jeffrey,
Rodriguez Nancy
Publication year - 2012
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.26.1_supplement.1013.11
Subject(s) - medicine , urine , physical activity , endocrinology , zoology , physical therapy , biology
This study characterized effects of protein intake on whole body protein turnover (WBPTO) between middle‐aged (50–70 y) women who practice yoga (YOGA) and healthy sedentary controls (CON). WBPTO (15N glycine method) was determined at baseline (BASE) and following 2 wk of diet interventions (T2W) where protein intakes approximated the RDA (RDA; .8 g/kg) or 1.6 g/kg (HP). 15N ammonia enrichment was determined for an overnight urine collection at BASE and T2W. Protein and energy intakes were estimated from 7 d diet records. Data represent mean ± SE and level of significance was P<0.05. Age, weight and BMI were similar for YOGA (n=4, 54.8±1.4 y, 62.0±5.3 kg, BMI=24.4 ± .9) and CON (n=8, 54±1.5 y, 66.3± 2.6 kg, BMI = 25.6 ± .7). Q was lower for YOGA vs CON (Q: .62 ± .05 vs .75 ± .04) while PB (2.86 ± .29 vs 3.07 ± 47), PS (3.33 ± .33 vs 4.47 ± .52) did not differ. Q increased with HP for YOGA (61 ± .11 vs 1.1 ± .19) and CON (72 ± .03 vs 1.03±.10). The change (T2W‐BASE) in Q was greater for HP for YOGA (.48 ± .08 vs .04 ± .03) vs CON (.32 ± .08 vs ‐.30±.16). PS increased for HP for YOGA (3.14 ± .56 vs 5.29 ± .58) and CON (3.81 ± .18 vs 5.68 ± .62) from BASE to T2W. PB increased for CON – HP (2.79 ± .64 vs 5.88 ± 0.72). At T2W, PS was greater for HP for CON (5.68 ± .62 vs 3.74 ± .07). Increased consumption of protein affected WBPTO in middle‐aged women. Research is warranted to delineate the protein related metabolic response to protein intake in active and sedentary middle‐aged women. Grant Funding Source : Dairy Research Institute