The Link between Dietary Protein Intake, Skeletal Muscle Function and Health in Older Adults

2016 ◽  
pp. 127-146
Author(s):  
Jamie Baum ◽  
Robert Wolfe
Keyword(s):  
Older Adults ◽  
Skeletal Muscle ◽  
Dietary Protein ◽  
Muscle Function ◽  
Protein Intake ◽  
Dietary Protein Intake ◽  
Skeletal Muscle Function

Relationships Among Skeletal Muscle Index, Dietary Protein Intake, and Serum Markers of Protein in Sarcopenic Older Adults

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 438-439
Author(s):  
Ashley A. Walter ◽  
Trent J. Herda ◽  
Pablo B. Costa ◽  
Andrea M. Valdez ◽  
Jeffrey R. Stout ◽  
...  
Keyword(s):  
Older Adults ◽  
Skeletal Muscle ◽  
Dietary Protein ◽  
Protein Intake ◽  
Serum Markers ◽  
Dietary Protein Intake ◽  
Skeletal Muscle Index

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.

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