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Of Liars & Grunters: More Than 500kcal/day That's the Minimal Amount of Energy >37% Overweight Subjects Don't Report. Plus: Grunt Your Way to a Powerful Serve

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"Don't tell!" or "Shut up!" - What could the lady on the top possibly be meaning? It's not always feasible to find exciting new studies everyday - specifically if you are already grunting under an unbearably high workload.... ok, you got me: That was a pun and a pretty bad one. "Grunting" is after all the topic of one out of two of the studies I am going to discuss in today's installment of On Short Notice . Moaning tennis players, to be precise. Nasty? I totally agree, but it obviously helps them to serve harder. Apropos harder! Dieting is pretty hard and acknowledging that your failure may be the result of your inability to stick to your diet and not the 2g of carbs that are still left in your "healthy low carb diet", s not exactly something overweight and obese men and women like to do. With >37% of the overweight participants of a large scale epidemiology not reporting 500kcal or more of their daily energy intake, you wil...

Baking Soda for Tennis Players

Regular visitors of the suppversity might ask themselves "What the hell does the Prof have with his baking soda?" - well, I guess I just like it ;-) Jokes aside, a recent study ( Wu. 2010 ) examining the effect of 0.3 g/kg sodium bicarbonate (=baking soda) before a simulated tennis match confirms that this cheap powder from the kitchen cupboard has its value even for professional athletes: The Loughborough Tennis Skill Test was performed before and after the simulated match. Post-match [HCO3-] and base excess were significantly higher in the bicarbonate trial than those in the placebo trial. Blood [lactate] was significantly increased in the placebo (pre: 1.22+/-0.54; post: 2.17+/-1.46 mM) and bicarbonate (pre: 1.23+/-0.41; post: 3.21+/-1.89 mM) trials. The match-induced change in blood [lactate] was significantly higher in the bicarbonate trial. Blood pH remained unchanged in the placebo trial (pre: 7.37+/-0.32; post: 7.37+/-0.14) but was significantly increased i...
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