|"Don't tell!" or "Shut up!" - What could the lady on the top possibly be meaning?|
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 will even have to ask yourself, how useful, let alone reliable the insights from corresponding studies actually are.
- Fat under-reporting - study compares reported to real energy intake in 30 445 men and women who participated in the Cancer (EPIC-Norfolk) study. I suppose you won't be surprised that the number of "liars" or "forgetters", i.e. people who did not tell the researchers the truth about their actual dietary intake was significantly higher in overweight individuals.
If we take into consideration, that more than 37% of the obese individuals will keep 500kcal and more from the researchers, this tells you something about the questions people voice about the significance of caloric deficits ... and it begs the question whether overweight individuals lie to the researchers, lie to themselves or simply don't realize that they are eating too much.
- Grunting makes tennis players serve faster, but does not impact VO2 kinetics - I am 100% sure I mentioned this before: The moaning and groaning on the center court is not Venous Williams ripping her shirt off and jumping at the judge, it's a (often female) way to get the most out of every stroke.
In their most recent paper, Emily R. Callison et al. were able to show that in their 10 members of the men’s (n=5) and women’s (n=5) tennis teams at a Division I university who had just completed their indoor competitive season the grunting did increase the ball velocity by 3.8%, but it did not have significant physiological effects on the athletes.
Whether I can or want to agree with the researchers suggestion that "[i]t may be worthwhile for players and coaches in tennis, as well as other sports, to experiment with grunting to determine possible improvement in performance" is albeit something I am not so sure of :-/
- Lentjes, Marleen AH, et al. "Dietary intake measurement using 7 d diet diaries in British men and women in the European Prospective Investigation into Cancer-Norfolk study: a focus on methodological issues." British Journal of Nutrition (2014): 1-11.
- Callison, Emily R, et al. "Grunting in Tennis Increases Ball Velocity But Not Oxygen Cost" Journal of Strength & Conditioning Research (2014): POST ACCEPTANCE, 9 February 2014