|Self-proclaimed experts will say: "No cod liver! It's poison! It has way too much vitamin A... you better pop a kg of vitamin D pills if you want to do something for your health." Really? How do you explain the results of the Robertson study, then?|
- 2-Fold Increase in Fat Oxidation W/ Correct Workout Timing (Darvakh. 2013) -- If we assume that you want to burn the maximal amount of fat during a workout, timing could be a more important factor than previously thought.
Figure 1: Maximal fat oxidation, intensity necessary to achieve the maximal fatty acid oxidation and total fat oxidation per minute; all values expressed relative to absolute mean in each category (Darvakh. 2013)
What's likewise interesting to observe is the fact that the exercise intensity that was required to achieve maximal fatty acid oxidation was higher in the morning. No wonder that the total fatty acid oxidation per minute in all three trials was the highest, when the participants worked out in the morning!
Bottom line: It's not just the missing dietary control, but also the mere idea that "burning fat for fuel" during a workout would have beneficial effects on long-term weight loss - let alone help you shed weight, when you are not in a caloric deficit that renders the results of the study at hand interesting, but more or less irrelevant. My personal advice would thus be: Work out, whenever you can muster the time and whenever you got the choice, base your decision on when to work out on performance measures, not results from studies like these (learn more about planning your workouts here).
- Is the time ripe for aggressive diabesity cures?! (Belsare. 2010) -- Everyone who has listened to the Wednesday episode of Super Human Radio, when Carl Lanore interviewed the Indian researcher Milind G. Watve, co-author of the paper at hand, will already be familar with the concept:
Table 1: Molecules that affect aggressive behavior as well as insulin resistance (Belsare. 2010)
Reduced injury proneness typical of ‘diplomat’ life style would also reorient the immune system resulting into delayed wound healing on the one hand and increased systemic inflammation on the other. Diabetes is negatively associated with physically aggressive behaviour."
"[...]that suppression of physical aggression is the major behavioural cue for the development of metabolic syndrome."However, despite the fact that "preliminary trials of behavioural intervention indicate that games and exercises involving physical aggression reduce systemic inflammation and improve glycemic control" - the same is true for "unagressive" types of exercise, so that I can't but vouch my doubts about the causative nature of aggression in this game of convenient laziness.
Sugg. Podcast: Doves, Diplomats & Diabetes: A Darwinian Interpretation Of the Obesity Epidemic (listen)
In the end, I am with Dr. Watve and his Indian colleagues: the non-pharmacological and in my humble opinion only viable solution to our problem are lifestyle changes - and as far as the "aggressiveness" is concerned, I guess, we'd just have to enforce these more aggressively. At least as aggressively as the Australians are leading their "war against" cigarette smoking - maybe a "war against" and not as a quest for revenue-generating pharmacological solutions to behavioral problems as we are still doing it by now.
- The breast cancer protective effects of seaweed - proof of principle (Teas. 2013) -- Researchers from the South Carolina Cancer Center at the University of South Carolina state in their recently published paper in the Journal of Applied Physiology that the consumption of seaweed (Undaria) in the form of a capped supplement (5g/day, total) decreases the urinary human urokinase-type plasminogen activator receptor (uPAR) concentrations in15 healthy postmenopausal women (5 had no history of breast cancer, 5 were breast cancer surivors) during a 3-month
single-blinded placebo controlled clinical trial.
What to make of these results? With the well-established increase in uPAR in post-menopausal and it's highly significant correlation with unfavorable breast cancer outcomes. The scientists argue that this controlled experiment would provide the hitherto missing "proof of principle" to confirm the epidemiologically observed anti-breast cancer effects of seaweed.
- Pre- & Post-workout supplementation with VPX' flagship products NO Shotgun & Synthesize promote fat free gains more than pure sugar (Ormsbee. 2013) -- Actually I did not even want to post this study, but it's so hilariously funny that I could not resist informing you about the marginal edge the provision of the VPX pre- & post-workout supplements NO Shotgun & NO Synthesize had in a sponsored study from the Florida State University that's been published in provisional form on Friday afternoon.
When the researchers analyzed the effects the provision of the said supplements before and after each of the workouts the 29 healthy resistance trained men had compared to a maltodextrin [yeah, that's protein, BCAA, creatine, caffeine, beta alanine & more in the "multi-ingredient performance supplements (MIPS) vs. plain sugar as "control" placebo)] they found
cortisol concentrations or body fat
- significant decrease in body fat in both groups (mean ± SD; MIPS: -1.2 ± 1.2%; Placebo: -0.9 ± 1.1%), android fat (MIPS: -1.8 ± 2.1%; Placebo: -1.6 ± 2.0%), and gynoid fat (MIPS: -1.3 ± 1 .6%; Placebo: -1.0 ± 1.4%) and *drum rolls please*
- a group × time interaction for the increases in fat-free mass which were significantly higher (4.2% vs. 1.9%) after the ingestion of the kitchen sink supplements compared to the 21g of pure maltodextrin
Bottom line: I wonder when the first supplement company dares doing a study comparing their product to a basic comination of creatine + whey and a cup of coffee before the workouts... what? Oh, you suspect that this could hamper their sales? Well, I guess you could be right.
That's it for this installment of "On Short Notice"! If you still have to kill some time before you start into the weekend, I suggest you take a peek at one of the following Facebook news:
I hope you did not already forget that. The isoleucine-containing peptides in hydro-whey can also ramp up GLUT-4 expression and increase skeletal muscle glucose uptake - a true repartitioning effect (learn more)
- Influenza: marketing vaccine by marketing disease -- Young Harvard scientists speaks out about the hilariousness of the flu vaccine (learn more)
- Further evidence androgens program fat-cells-to-be to become bone, not fat -- "[O]ur results suggest androgens promote an osteogenic gene program at the expense of adipocyte differentiation." (read more)
- Metabolic IN-flexibility is a characteristic feature of PCOS in women -- That's corroborated by both insulin resistance and androgen excess (learn more)
- Belsare PV, Watve MG, Ghaskadbi SS, Bhat DS, Yajnik CS, Jog M. Metabolic syndrome: aggression control mechanisms gone out of control. Med Hypotheses. 2010 Mar;74(3):578-89.
- Darvakh H, Nikbakht M, Shakerian S, Mousavian AS. Effect of Circadian Rhythm on Peak of Maximal Fat Oxidation on Non-Athletic. Zahedan J Res Med Sci. 2013; 15 [epub ahead of print].
- Ormsbee MJ, Thomas DD, Mandler WK, Ward EG, Kinsey AW, Panton LB, Scheett TP, Hooshmand S, Simonavice E, Kim JS. The effects of pre- and post-exercise consumption of multi-ingredient performance supplements on cardiovascular health and body fat in trained men after six weeks of resistance training: a stratified, randomized, double-blind study. Nutr Metab (Lond). 2013 May 16;10(1):39.
- Robertsen S, Grimnes G, Melbye H. Association between serum 25-hydroxyvitamin D concentration and symptoms of respiratory tract infection in a Norwegian population: the Tromsø Study. Public Health Nutr. 2013 May 9:1-7.
- Teas J, Vena S, Cone DL, Irhimeh M. The consumption of seaweed as a protective factor in the etiology of breast cancer: proof of principle. J Appl Phycol. 2013 Jun;25(3):771-779.