Josep M. Argilés, et al: Are there any benefits of exercise training in cancer cachexia? Journal of Cachexia, Sarcopenia and Muscle, 2012, doi: 10.1007/s13539-012-0067-5
下記のHPで全文PDFで見ることができます。
http://www.springerlink.com/content/t076133631416340/fulltext.pdf
がん悪液質に対する包括的治療の中で、運動療法は悪液質の予防に有用ではないかと期待されています。ただ、基礎研究、臨床研究ともあまり行われていないのが現状です。がんマウスの実験では運動療法(トレッドミル)によってかえって体重が減少したという報告もあります。
悪液質や全身の状態によって、運動を積極的に行うべき場合と控えるべき場合があります。ただ、上記の図のように運動のメリットもありますので、私は体重減少が著しくない場合には、軽~中負荷の運動を行うことを推奨しています。運動のやりすぎはよくありませんが。
また、それなりの栄養療法が行われていることが大前提です。食事摂取量が少なくて飢餓を合併した悪液質であれば、積極的な運動は禁忌になります。具体的な運動量、運動内容を推奨できるようなエビデンスはありませんので、今後の臨床研究に期待したいです。
Abstract
Cancer cachexia is a complex syndrome characterized by
inflammation, body weight loss, muscle, and adipose tissue wasting that is
responsible for the death of a considerable percentage of cancer patients. In
addition, during cachexia muscle strength and endurance are dramatically
reduced, limiting the ability to perform daily activities and severely affecting
the patient’s quality of life. Different studies have emphasized that a single
therapy may not be completely successful in the treatment of cachexia. Beyond
pharmacological strategies, exercise training has been suggested as a promising
countermeasure to prevent cachexia, in order to restore both strength and
endurance, depending on the type of exercise. Unfortunately, a small number of
studies, in both clinical and experimental settings, have been performed to
date. Moreover, when considering exercise in cancer, several factors have to be
taken into consideration, in particular those alterations that could limit the
capacity to perform exercise and consequently the resulting beneficial or
detrimental effects. This editorial is aimed at stimulating the debate on the
suitability of including exercise training in a multi-functional approach
against cachexia taking into consideration both limitations and advantages.
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