Mallinson JE, Murton AJ. Mechanisms responsible for disuse muscle atrophy: potential role of protein provision and exercise as countermeasures. Nutrition. 2013 Jan;29(1):22-8. doi: 10.1016/j.nut.2012.04.012.
廃用性筋萎縮は傷害後や疾患の治療中によく認め、筋肉量と筋力が減少します。メカニズムについては主にネズミで研究されてきて、最近ようやくヒトでの研究が出てきました。レジスタンストレーニングと栄養による筋蛋白合成が治療戦略として重要です。
レジスタンストレーニングと栄養による筋蛋白合成は、まさにリハ栄養です。従来、廃用性筋萎縮や廃用症候群に対しては、リハやレジスタンストレーニングで対応してきました。しかし廃用症候群では低栄養を9割前後に認めるため、リハ栄養での対応が大切です。
Abstract
Muscle disuse is often observed after injury or during periods of illness, resulting in the loss of muscle mass and strength, with sometimes debilitating consequences. Although substantial advancements have been made in determining the mechanisms responsible for the etiology of muscle disuse atrophy in rodents, only in recent years have studies of any significant number focused on reaffirming these findings in humans. In this review, we discuss the processes responsible for disuse atrophy as based on current evidence and highlight where gaps in our knowledge persist. Furthermore, given the emphasis placed on resistance exercise and nutrition as potential therapeutic countermeasures, we consider recent advancements in the study of resistance exercise and nutrition in the stimulation of muscle protein synthesis and the associated implications when devising effective treatment strategies.
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