While this is true, I think you would struggle to come up with an extra 4000 calories by saying "but a top tournament is more stressful." You should not pay this 6000 calorie claim any more heed until someone publishes some evidence in support of it - because so far, all evidence suggests the calorie expenditure during chess play is only a mild increase over rest. People will say that these players in these studies are not top grandmasters, and not playing serious classical tournaments. There are lots of studies on HRV in chess, but sadly few in energy expenditure (as indirect calorimetry is resource expensive) presented their own study at the 9th international scientific conference of kinesiology, where they found chess players burned 138kcals on average in a 30 minute chess game, compared to 260 kcals while those same players went for a run for 30 minutes. Even if we take calorie expenditure at the top-end of the confidence interval, this would amount to only 960kcals spent over an 8 hour chess game: only a couple hundred calories higher than if you were just sitting watching TV.
10% is a long way off the 300% that Sapolsky claims. al in 2008 found that chess players burned an average of 1.53kcal per minute at rest, and at most 1.67kcal per minute while playing chess - a modest 10% increase on average from doing nothing. You are not burning as many calories while having a panic attack as you are while running a marathon.Īctual exercise scientists have used indirect calorimetry - the research standard in exercise physiology for energy expenditure - to actually measure how many calories chess players burn while playing chess. I hope you don't have to be an exercise physiologist to understand how heart rate variability does not directly correlate with energy expenditure. Sapolsky has never published any research that can back up his "6000-7000" calories a day figure, and infers this based solely on looking at chess player's heart rates and bloods pressures during the game. This ESPN article is the number one source of the misconception, and every time it comes up, some people dispute it, and other armchair scientists come up with bro-science to try and validate it. It seems to be the season of repeating this common myth in the chess world. Please continue to give us your feedback and suggestions on how we can help make /r/chess better for everyone. Use the message the moderators link if your posts or comments don't appear, or for help with any administrative matters. Twitter/Facebook posts must contain a direct link to the tweet/post, and include the author's nameĬhess Spoiler format for problem answers etc., Public Moderator Logs (broken by API changes)ĭon’t engage in abusive, discriminatory, or bigoted behavior.ĭon't ask for advice about ongoing games.ĭo not use /r/chess exclusively to promote your own content. Instructions for /r/chess PGN addon ( Chrome, Firefox)
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