Postprandial triglyceride and free fatty acid metabolism in obese women after either endurance or resistance exercise. http://www.ncbi.nlm.nih.gov/pubmed/23580597
In brief it seems after reading this abstract (about five times) that exercise (HIIT or LISS) lowers blood triglyceride levels, increases free-fatty-acid levels and increases lipid oxidation.
So I am wondering now whether or not carbohydrate consumption (and resulting glucose/insulin ratio elevations) is best during low plasma triglyceride levels, or low free-fatty-acid levels?
The question being is adipose tissue formation higher with elevated glucose in the presence of high plasma free-fatty-acid concentration or high plasma triglyceride concentration?
Simply speaking if from the study we (or rather obese women) can see a means of changing the ratios of FFA versus TG blood concentrations (by exercise), then we can ask whether or not it makes a difference to consume glucose in the elevation of one rather than the other.
The context of this question is (which should be evident) about adipose tissue, not necessarily muscle hypotrophy or glycogen repletion, etc.
Removed quote from a SEPARATE textbook to avoid confusion. See edit if you want to view it.
asked byMash (8574)
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on April 15, 2013
at 04:59 PM
an excess of carbohydrates in the diet not only acts as a fat-sparer but also increases fat stores. In fact, all the excess carbohydrates not used for energy or stored in the small glycogen deposits of the body are converted to fat for storage ==> I'm pretty sure that excess calories of all types are converted to fat for storage. Seems like a very biased argument. excess ANYTHING is going to lead to extra fat, toxicity, or death (in the case of water). That's sorta the definition of excess.
If you are interested in strategic carb intake as a function of fat burning read up on leangains. Lots of information out there, but succinctly (and likely inadequately), VLC on rest days re-feeds at the end of workout days.
My personal opinion is that carbs can be consumed at any point in the day as long as you are eating healthy and exercising (and resting) moderately (3-4 times per week). If you are doing more than that, or pushing significant loads, extra carbs are definitely beneficial. And if you are working out daily or twice a day, post exercise window carbs are particularly beneficial. I don't do either, so I can get my carbs at my next meal.
Some other studies to consider:
ajpendo.physiology.org/content/293/3/ --"In conclusion, coingestion of carbohydrate during recovery does not further stimulate postexercise muscle protein synthesis when ample protein is ingested."
ncbi.nlm.nih.gov/pubmed/8455450 -- ???Total force production, preexercise muscle glycogen content, and degree of depletion (-40.6 and -44.3 mmol.kg-1 wet weight) were not significantly different between H2O and CHO trials.???
ncbi.nlm.nih.gov/pubmed/21131864 -- ???The concurrent ingestion of 50 g of CHO with 25 g of protein did not stimulate mixed MPS or inhibit MPB more than 25 g of protein alone either at rest or after resistance exercise???