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Titre : | Daily Supplementation With Whey, Soy, or Whey-Soy Blended Protein for 6 Months Maintained Lean Muscle Mass and Physical Performance in Older Adults With Low Lean Mass (2021) |
Auteurs : | Chunlei Li ; Huicui Meng ; Shangling Wu ; Aiping Fang ; Gongcheng Liao ; Xuying Tan ; Peiyan Chen ; Xiaoyan Wang ; Si Chen ; Huilian Zhu |
Type de document : | Article |
Dans : | Journal of the academy of nutrition and dietetics (Vol. 121, n° 6, June 2021) |
Article en page(s) : | p. 1035-1048.e6 |
Note générale : | doi:10.1016/j.jand.2021.01.006 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Adulte ; Performance fonctionnelle physique ; Protéines de lactosérum ; Protéines de soja ; Sujet âgé |
Mots-clés: | masse musculaire maigre |
Résumé : |
Background:
Few studies have investigated the effect of long-term protein supplementation alone on muscle health in older adults with low lean mass. Objective: To determine the effect of whey, soy or whey-soy blended protein supplementation on lean muscle mass and physical performance in older adults with low lean mass. Design: A 4-arm randomized controlled trial. Participants/setting: Chinese older adults (n = 123, 65-79 years) with low lean mass (appendicular skeletal muscle index Intervention: Participants were randomly assigned to receive approximately 16 g/d of whey, soy, or whey-soy blend protein or maintained habitual diets in control group for 6 months. Main outcome measures: Lean mass, handgrip strength, and physical performance (gait speed, chair stand test, and Short Physical Performance Battery) were assessed at baseline and 6 months. Statistical analyses: Two-way analysis of variance with the main effects of treatment and time and treatment × time interaction and analysis of covariance was used to determine differences in outcomes. Results: Appendicular skeletal muscle index, lean mass, percent lean mass in legs and appendicular areas, gait speed, and Short Physical Performance Battery score were maintained in the treatment groups and decreased in the control group, resulting in significant reduction in these variables from baseline in the control compared with treatment groups (all P Conclusions: Supplementation with whey, soy, or whey-soy blended protein for 6 months equally maintained lean muscle mass and physical performance in older adults with low lean mass. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/abs/pii/S221226722100006X |