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#1
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Diet-restricted mice perform better in sports
"DZ" wrote in message ... Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article From the study: "In response to assigned tasks, the diet-restricted mice performed better in all activities: they climbed out of obstacles faster, freed themselves sooner from restraint by gummed tape, hung from a bar longer, and better resisted slipping down a slope." Most of the tests favor a lower body weight and/or smaller size, so I don't think you can say calorie restriction can increase muscle strength. Matthew |
#2
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In article , "Matthew"
wrote: "DZ" wrote in message ... Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article From the study: "In response to assigned tasks, the diet-restricted mice performed better in all activities: they climbed out of obstacles faster, freed themselves sooner from restraint by gummed tape, hung from a bar longer, and better resisted slipping down a slope." Most of the tests favor a lower body weight and/or smaller size, so I don't think you can say calorie restriction can increase muscle strength. Relative strength is increased, judging by the results. It would be hard to extrapolate to human success in sports. -- Keith |
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It can be dangerous to extrapolare to humans from mice...
"DZ" wrote in message ... Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article |
#4
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"Sam" wrote in message .net... It can be dangerous to extrapolare to humans from mice... But some of our races are run in circles or maze like trails and we do eat cheese. Isn't that enough direct evidence? -DF |
#5
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"DZ" wrote Sam wrote: "DZ" wrote: Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article It can be dangerous to extrapolare to humans from mice... And even more dangerous not to. We wouldn't have biology or medicine to speak of. I volunteer the members of rec.running and alt.support.diet to take the place of mice, rats, pigs, beagles and chimps in all experiments. David |
#6
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David Cohen wrote:
"DZ" wrote Sam wrote: "DZ" wrote: Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article It can be dangerous to extrapolare to humans from mice... And even more dangerous not to. We wouldn't have biology or medicine to speak of. I volunteer the members of rec.running and alt.support.diet to take the place of mice, rats, pigs, beagles and chimps in all experiments. David PETA would be happy with that. -- -Larry |
#7
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"David Cohen" wrote in message k.net... "DZ" wrote Sam wrote: "DZ" wrote: Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article It can be dangerous to extrapolare to humans from mice... And even more dangerous not to. We wouldn't have biology or medicine to speak of. I volunteer the members of rec.running and alt.support.diet to take the place of mice, rats, pigs, beagles and chimps in all experiments. Fine, but do you really think any researcher is willing to pay me for the duration of a calorie restriction study? Matthew |
#8
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"Matthew" wrote "David Cohen" wrote "DZ" wrote Sam wrote: "DZ" wrote: Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Free full text - http://www.jstage.jst.go.jp/article/...4_209/_article It can be dangerous to extrapolare to humans from mice... And even more dangerous not to. We wouldn't have biology or medicine to speak of. I volunteer the members of rec.running and alt.support.diet to take the place of mice, rats, pigs, beagles and chimps in all experiments. Fine, but do you really think any researcher is willing to pay me for the duration of a calorie restriction study? Oh, sorry, you thought I meant just CR experiments. I was thinking of chemical castration, vocal cord resection, the effects of Usenet posting on erectile dysfunction, etcetera David |
#9
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steve common wrote:
DZ wrote: Calorie-restricted mice perform better in tasks that involve reaction, speed and have better endurance. The study corroborates on the earlier finding that the combination of caloric restriction and free exercise acts synergistically to increase muscle endurance and strength. Could it be that the calorie restriction is stimulating adrenalin production which in turn has some useful side-effects on reaction times etc, rather than a real increase in muscle strength? Why would you assume that? FWIW, I was able to find one study which indicated that epinephrine was catecholamine which changed *least* during calorie restriction and refeeding. -- JMW http://www.rustyiron.net |
#10
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JMW wrote:
Why would you assume that? Not an assumption, more an idea looking for contradiction or confirmation, hence the post formulated as a question. It was just a cross between my vague recollection of something I'd read about the role of adrenalin in both fat metabolism and reaction times (maybe my last remaining, shriveled neuron is playing up on me :-) and a personal experience of a keen sharpness during the second half of the Sand Marathon (one week running in the Sahara desert, av 40km / day, with a 8kg backpack, 3kg of water and ~2400 calories/day) |
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