scholarly journals Insufficient amounts and inadequate distribution of dietary protein intake in apparently healthy older adults in a developing country: implications for dietary strategies to prevent sarcopenia

2013 ◽  
pp. 1143 ◽  
Author(s):  
Heliodoro Aleman-Mateo ◽  
Ruiz Valenzuela ◽  
Ponce ◽  
Morales-Figueroa ◽  
Aguilar Muro ◽  
...  
Keyword(s):  
Older Adults ◽  
Developing Country ◽  
Dietary Protein ◽  
Protein Intake ◽  
Dietary Protein Intake ◽  
Healthy Older Adults ◽  
Dietary Strategies ◽  
Apparently Healthy

scholarly journals Dietary Protein Intake Is Protective Against Loss of Grip Strength Among Older Adults in the Framingham Offspring Cohort

2015 ◽  
Vol 71 (3) ◽  
pp. 356-361 ◽  
Author(s):  
Robert R. McLean ◽  
Kelsey M. Mangano ◽  
Marian T. Hannan ◽  
Douglas P. Kiel ◽  
Shivani Sahni
Keyword(s):  
Older Adults ◽  
Grip Strength ◽  
Dietary Protein ◽  
Protein Intake ◽  
Dietary Protein Intake ◽  
Offspring Cohort

scholarly journals Impact of Meeting Different Guidelines for Protein Intake on Muscle Mass and Physical Function in Physically Active Older Women

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1156 ◽  
Author(s):  
Andreas Nilsson ◽  
Diego Montiel Rojas ◽  
Fawzi Kadi
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Function ◽  
Older Women ◽  
Muscle Mass ◽  
Dietary Protein ◽  
Protein Intake ◽  
Dietary Protein Intake ◽  
Physical Limitations

The role of dietary protein intake on muscle mass and physical function in older adults is important for the prevention of age-related physical limitations. The aim of the present study was to elucidate links between dietary protein intake and muscle mass and physical function in older women meeting current guidelines of objectively assessed physical activity. In 106 women (65 to 70 years old), protein intake was assessed using a 6-day food record and participants were classified into high and low protein intake groups using two Recommended Dietary Allowance (RDA) thresholds (0.8 g·kg−1 bodyweight (BW) and 1.1 g·kg−1 BW). Body composition, aerobic fitness, and quadriceps strength were determined using standardized procedures, and self-reported physical function was assessed using the SF-12 Health Survey. Physical activity was assessed by accelerometry and self-report. Women below the 0.8 g·kg−1 BW threshold had a lower muscle mass (p < 0.05) with no differences in physical function variables. When based on the higher RDA threshold (1.1 g·kg−1 BW), in addition to significant differences in muscle mass, women below the higher threshold had a significantly (p < 0.05) higher likelihood of having physical limitations. In conclusion, the present study supports the RDA threshold of 0.8 g·kg−1 BW of proteins to prevent the loss of muscle mass and emphasizes the importance of the higher RDA threshold of at least 1.1 g·kg−1 BW to infer additional benefits on constructs of physical function. Our study also supports the role of protein intake for healthy ageing, even in older adults meeting guidelines for physical activity.

scholarly journals High Versus low Dietary Protein Intake and Bone Health in Older Adults: a Systematic Review and Meta-Analysis

2019 ◽  
Vol 17 ◽  
pp. 1101-1112 ◽  
Author(s):  
Inge Groenendijk ◽  
Laura den Boeft ◽  
Luc J.C. van Loon ◽  
Lisette C.P.G.M. de Groot
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Bone Health ◽  
Dietary Protein ◽  
Protein Intake ◽  
Meta Analysis ◽  
Dietary Protein Intake

scholarly journals Serum Amino Acids Patterns and 4-Year Sarcopenia Risk in Community-Dwelling Chinese Older Adults

Gerontology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Suey S.Y. Yeung ◽  
Zoe L.Y. Zhu ◽  
Timothy Kwok ◽  
Jean Woo
Keyword(s):  
Older Adults ◽  
Dietary Protein ◽  
Protein Intake ◽  
Principal Component ◽  
Community Dwelling ◽  
Dietary Protein Intake ◽  
Chinese Older Adults ◽  
Serum Amino Acids ◽  
Composite Scores

<b><i>Introduction:</i></b> Dietary protein intake and serum amino acids (AAs) are factors controlling the rate of muscle protein synthesis and catabolism. This study examined the association between serum AAs patterns and incident sarcopenia in community-dwelling older adults. <b><i>Methods:</i></b> Chinese older adults in Hong Kong aged ≥65 years attended a health check at baseline and 4-year follow-up. At baseline, fasting blood was collected to measure 17 serum AAs. Serum AAs patterns were identified using principal component analysis. Dietary protein intake was assessed using a validated food frequency questionnaire. A composite score was computed by summing the principal component score and sex-standardized protein intake. Six composite scores representing each AAs pattern were available for each participant. Sarcopenia was defined using the updated version of the Asian Working Group for Sarcopenia. Crude and adjusted multiple logistic regressions were performed to examine the associations between each of the 6 composite scores and sarcopenia over 4 years. Results are presented as odds ratio (OR) and 95% confidence interval (CI). To address multiple testing, a Bonferroni correction was applied using a corrected significance level of <i>p</i> &#x3c; 0.008 (α 0.05/6 patterns). <b><i>Results:</i></b> Data of 2,610 participants (mean age 71.6 years, 45.4% men) were available. In men, serum AAs patterns characterized by high branched-chain AAs (BCAAs) (OR 0.77, 95% CI 0.69–0.87, <i>p</i> &#x3c; 0.001) and tyrosine, tryptophan, and phenylalanine (OR 0.79, 95% CI 0.71–0.89, <i>p</i> &#x3c; 0.001) were significantly associated with a lower risk of sarcopenia over 4-year follow-up. After adjusting for confounders, the associations were no longer significant. In women, serum AAs patterns characterized by glutamine, glutamic acid, and methionine (OR 1.28, 95% CI 1.11–1.47, <i>p</i> = 0.001) and arginine, taurine, and serine (OR 1.20, 95% CI 1.06–1.35, <i>p</i> = 0.003) were associated with a higher risk of sarcopenia. After adjusting for confounders, serum AAs pattern characterized by high BCAAs (adjusted OR 1.52, 95% CI 1.25–1.86, <i>p</i> &#x3c; 0.001) and arginine, taurine, and serine (adjusted OR 1.30, 95% CI 1.09–1.56, <i>p</i> = 0.004) were significantly associated with a higher risk of sarcopenia. No association between other AAs patterns with incident sarcopenia was found. <b><i>Conclusions:</i></b> In community-dwelling Chinese older adults, serum AAs patterns characterized by high BCAAs and nonessential AAs (arginine, taurine, and serine) were associated with a higher risk of sarcopenia in women. Findings may allow identifying new targets for interventions.

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