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Nutrient-rich meat proteins in offsetting age-related muscle loss

机译：富含营养的肉蛋白质可抵消与年龄有关的肌肉损失

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摘要

From a health perspective, an underappreciated consequence or the normal aging process is the impacts that the gradual loss of skeletal muscle mass, termed sarcopenia, has on health beyond an effect on locomotion. Sarcopenia, refers to the loss of muscle mass, and associated muscle weakness, which occurs in aging and is thought to proceed at a rate of approximately 1 % loss per year. However, periods of inactivity due to illness or recovery from orthopedic procedures such as hip or knee replacement are times of accelerated sarcopenic muscle loss from which it may be more difficult for older persons to recover. Some of the consequences of age-related sarcopenia are easy to appreciate such as weakness and, eventually, reduced mobility; however, other lesser recognized consequences include, due to the metabolic role the skeletal muscle plays, an increased risk for poor glucose control and a predisposition toward weight gain. What we currently know is that two stimuli can counter this age related muscle loss and these are physical activity, specifically resistance exercise (weightlifting), and nutrition. The focus of this paper is on the types of dietary protein that people might reasonably consume to offset sarcopenic muscle loss.
机译：从健康的角度来看，被低估的后果或正常的衰老过程是逐渐减少的骨骼肌质量（称为肌肉减少症）对健康的影响，而不仅仅是运动的影响。肌肉减少症是指肌肉质量的丧失和相关的肌肉无力，其发生在衰老中，并且被认为以每年约1％的丧失速度进行。但是，由于疾病或骨科手术（例如髋关节或膝关节置换术）恢复而导致的不活动时期是肌肉减少性肌肉加速丧失的时期，老年人可能很难从中恢复。与年龄有关的肌肉减少症的一些后果很容易理解，例如虚弱，并最终导致活动能力下降；然而，其他较少为人所知的后果包括由于骨骼肌的代谢作用，血糖控制不佳的风险增加以及体重增加的倾向。我们目前所知道的是，两种刺激可以抵抗与年龄相关的肌肉丧失，这是体育活动，特别是抵抗运动（举重）和营养。本文的重点是人们可能合理摄入的饮食蛋白质类型，以抵消肌肉减少症。

著录项

  • 来源
    《Meat Science》 |2012年第3期|p.174-178|共5页
  • 作者

    Stuart M. Phillips;

  • 作者单位

    McMaster University, Department of Kinesiology, Hamilton, ON, Canada;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    meat; sarcopenia; iron; vitamin B-12; aging;

    机译：肉;肌肉减少症铁;维生素B-12;老化;

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