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High relative consumption of vegetable protein is associated with faster walking speed in well-functioning older adults

Authors
  • Coelho-Junior, Hélio J.1, 2, 3
  • Calvani, Riccardo1, 4
  • Gonçalves, Ivan O.5
  • Rodrigues, Bruno2
  • Picca, Anna1, 4
  • Landi, Francesco1, 4
  • Bernabei, Roberto1, 4
  • Uchida, Marco C.2
  • Marzetti, Emanuele4
  • 1 Università Cattolica del Sacro Cuore, Rome, Italy , Rome (Italy)
  • 2 University of Campinas, Applied Kinesiology Laboratory–LCA, School of Physical Education, Campinas, SP, Brazil , Campinas (Brazil)
  • 3 Mãe Mariana Home, Rehabilitation unit, Poá-SP, Brazil , Poá-SP (Brazil)
  • 4 Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Center for Geriatric Medicine (Ce.M.I.), L.go F. Vito 1, Rome, 00168, Italy , Rome (Italy)
  • 5 University of Mogi das Cruzes, Center of Health Sciences, Mogi das Cruzes, Brazil , Mogi das Cruzes (Brazil)
Type
Published Article
Journal
Aging Clinical and Experimental Research
Publisher
Springer-Verlag
Publication Date
May 21, 2019
Volume
31
Issue
6
Pages
837–844
Identifiers
DOI: 10.1007/s40520-019-01216-4
Source
Springer Nature
Keywords
License
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Abstract

BackgroundAdequate nutrition and, especially, optimal protein intake are necessary to preserve physical function during aging. Increased consumption of animal-derived protein is often advocated as a strategy to support physical performance in old age. However, there is a lack of empirical evidence to support this claim.AimsTo assess the relationship of protein consumption and specific protein sources with physical function in older adults.MethodsParticipants were community dwellers aged 60 years and older recruited in São Paulo, Brazil. Enrollees had their medical books reviewed and were evaluated for anthropometry, physical performance, and diet. Physical performance was evaluated by isometric handgrip strength and walking speed (WS) tests. Diet was assessed using a 24-h recall diary.ResultsNinety older adults were recruited (mean age: 68.0 ± 6.7 years; 87.0% women). Body weight-adjusted protein consumption was significantly associated with upper-limb muscle strength (r = 0.21; p < 0.05), but not with usual (r = 0.09; p > 0.05) or fast WS (r = 0.08; p > 0.05). Conversely, relative protein consumption was correlated with usual WS (r = 0.13; p < 0.05), while fast WS was negatively associated with relative animal protein intake (r = − 0.18; p < 0.05) and positively associated with relative plant-based protein ingestion (r = 0.15; p < 0.05).DiscussionFindings of the present study indicate that different measures of protein intake are associated with distinct components of physical function. In addition, high relative ingestion of vegetable protein is associated with faster WS.ConclusionsA comprehensive dietary evaluation is necessary to appreciate the impact of specific nutrients on physical performance in older people. Future interventional studies are needed to establish the optimal blend of protein sources to support physical performance in old age.

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