Are Canadian Protein and Physical Activity Guidelines Optimal for Sarcopenia Prevention in Older Adults? (original) (raw)

2018, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme

Aging is characterized by physiological and morphological changes that affect body composition, strength, and function ultimately leading to sarcopenia. This condition results in physical disability, falls, fractures, poor quality of life and increased health care costs. Evidence suggests that increased consumption of dietary protein and physical activity levels, especially resistance exercise, can counteract the trajectory of sarcopenia. Canadian guidelines for protein intake and physical activity were last updated in 2005 and 2011, respectively and new evidence on sarcopenia diagnosis, prevention and treatment is rapidly evolving. Protein recommendations are set as "one-size-fits-all" for both young and older adults. Recent evidence demonstrates that current recommendations are insufficient to meet the minimum protein requirement to counteract muscle loss and to stimulate hypertrophy in healthy older adults. Beyond quantity, protein quality is also essential to benefit m...

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