Guest guest Posted February 3, 2008 Report Share Posted February 3, 2008 Hi folks: A couple of weeks ago the question came up whether exercise with CRON is better than CRON alone. We know exercise increases average lifespan, as of course does CRON. We know that exercise does not increase maximal lifespan (generally defined as the average lifespan of the longest-lived 10% of the individuals studied) whereas CRON does. It is hypothetically possible that exercise + CRON might further rectangularize the survival curve, a bit better than that for CRON alone. But it is also possible that the extra calories processed in order to permit the exercise might actually shorten lifespan. The following paper, Holloszy JO 1997, may be the most recent solid information on the subject. The link below provides the full text. If I understand it the gist is that in rats: ".... survival curves [of wheel-running restricted rats] were virtually identical to those of sedentary animals that were food restricted so as to keep their body weights the same as those of the runners. " , and: "....... exercise does not interfere with the extension of maximal life span by food restriction, and the beneficial effects of food restriction and exercise on survival are not additive or synergistic. " In other words, if these results apply also to humans, exercise will have no effect either positive or negative for lifespan when added on top of CRON. If anyone has more up-to-date information, please post. http://jap.physiology.org/cgi/content/full/82/2/399 Rodney. Quote Link to comment Share on other sites More sharing options...
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