andrew_gelman_stats andrew_gelman_stats-2013 andrew_gelman_stats-2013-2022 knowledge-graph by maker-knowledge-mining
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Introduction: This post is by Phil Price. The New York Times recently ran an article entitled “How Exercise Can Help Us Eat Less,” which begins with this: “Strenuous exercise seems to dull the urge to eat afterward better than gentler workouts, several new studies show, adding to a growing body of science suggesting that intense exercise may have unique benefits.” The article is based on a couple of recent studies in which moderately overweight volunteers participated in different types of exercise, and had their food intake monitored at a subsequent meal. The article also says “[The volunteers] also displayed significantly lower levels of the hormone ghrelin, which is known to stimulate appetite, and elevated levels of both blood lactate and blood sugar, which have been shown to lessen the drive to eat, after the most vigorous interval session than after the other workouts. And the appetite-suppressing effect of the highly intense intervals lingered into the next day, according to food diarie
sentIndex sentText sentNum sentScore
1 ” The article is based on a couple of recent studies in which moderately overweight volunteers participated in different types of exercise, and had their food intake monitored at a subsequent meal. [sent-3, score-0.581]
2 And the appetite-suppressing effect of the highly intense intervals lingered into the next day, according to food diaries that the men completed. [sent-5, score-0.488]
3 They consumed fewer calories during the subsequent 24 hours after the very intense 15-second intervals than after any of the other workouts. [sent-6, score-0.58]
4 ” This does not surprise me: I’ve long been aware that my appetite is substantially depressed immediately after high-intensity exercise, and that even hours later I tend to be less hungry than after a less intense exercise session. [sent-7, score-1.331]
5 (When I say “high-intensity exercise” I mean an effort that brings my heart rate very close to its maximum, or, equivalently, an intensity I cannot maintain for much more than 20-30 seconds; this is comparable to the maximum intensities in both of those studies. [sent-8, score-0.136]
6 ) The article points out that the studies were very short-term, so they don’t show that in the long run the volunteers would lose weight if they continued to perform high-intensity workouts. [sent-9, score-0.557]
7 My guess, though, is that they would, or at least some of them would: As I’ve noted in previous posts , when I add more high-intensity exercise to my exercise schedule I tend to lose weight, and when I take some high-intensity exercise out of my schedule I tend to gain weight. [sent-10, score-2.631]
8 ” These studies suggest that that first supposition may well be true. [sent-12, score-0.149]
9 Of course, the second might also be true: they aren’t mutually exclusive. [sent-13, score-0.062]
10 I do not claim that this fact has implications for “solving America’s obesity epidemic” or anything like that. [sent-17, score-0.068]
11 I know I’m not unique in the effect of high-intensity exercise on weight, but I don’t know that it would work for most people. [sent-18, score-0.798]
12 At least for me, the total amount of energy I expend during high-intensity exercise is not the cause of my weight loss: adding just a few 30-second high-intensity intervals per week has a noticeable effect, even though a single 30-second interval burns less than 10 Calories. [sent-20, score-1.37]
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Introduction: This post is by Phil Price. The New York Times recently ran an article entitled “How Exercise Can Help Us Eat Less,” which begins with this: “Strenuous exercise seems to dull the urge to eat afterward better than gentler workouts, several new studies show, adding to a growing body of science suggesting that intense exercise may have unique benefits.” The article is based on a couple of recent studies in which moderately overweight volunteers participated in different types of exercise, and had their food intake monitored at a subsequent meal. The article also says “[The volunteers] also displayed significantly lower levels of the hormone ghrelin, which is known to stimulate appetite, and elevated levels of both blood lactate and blood sugar, which have been shown to lessen the drive to eat, after the most vigorous interval session than after the other workouts. And the appetite-suppressing effect of the highly intense intervals lingered into the next day, according to food diarie
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Introduction: I read this front-page New York Times article and was immediately suspicious. Here’s the story (from reporter Gina Kolata): Could exercise actually be bad for some healthy people? A well-known group of researchers, including one who helped write the scientific paper justifying national guidelines that promote exercise for all, say the answer may be a qualified yes. By analyzing data from six rigorous exercise studies involving 1,687 people, the group found that about 10 percent actually got worse on at least one of the measures related to heart disease: blood pressure and levels of insulin, HDL cholesterol or triglycerides. About 7 percent got worse on at least two measures. And the researchers say they do not know why. “It is bizarre,” said Claude Bouchard, lead author of the paper , published on Wednesday in the journal PLoS One . . . Dr. Michael Lauer, director of the Division of Cardiovascular Sciences at the National Heart, Lung, and Blood Institute, the lead federal
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