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Vinegar Aids Post Exercise Glycogen Repletion


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Posted by: w8lifter

Just FYI....don't know if it's been posted before

Vinegar Aids Post Exercise Glycogen Repletion
Int J Sports Med 2002 Apr;23(3):218-22

The efficacy of acetic acid for glycogen repletion in rat skeletal muscle after exercise.

Fushimi T, Tayama K, Fukaya M, Kitakoshi K, Nakai N, Tsukamoto Y, Sato Y.

Central Research Institute, Mitsukan Group Co. Ltd., Handa, Japan. tfushimi@mitsukan.co.jp

We examined the effect of acetic acid, the main component of vinegar, on glycogen repletion by using swimming-exercised rats. Rats were trained for 7 days by swimming. After an overnight fast, they were subjected to a 2-hr swimming exercise. Immediately afterward, they were given by gavage 2 ml of one of the following solutions: 30 % glucose only or 30 % glucose with 0.4 % acetic acid. Rats were sacrificed by decapitation before, immediately after exercise and 2 hours after the feeding. Exercise significantly decreased soleus and gastrocnemius glycogen content, and feeding significantly increased liver, soleus and gastrocnemius glycogen content. In soleus muscle, acetate feeding significantly increased glycogen content and the ratio of glycogen synthase in the I form (means +/- SEM: 4.04 +/- 0.41 mg/g-tissue and 47.0 +/- 0.7 %, respectively) in contrast to no acetate feeding (3.04 +/- 0.29 mg/g-tissue and 38.1 +/- 3.4 %, respectively). Thus, these findings suggest that the feeding of glucose with acetic acid can more speedily accelerate glycogen repletion in skeletal muscle than can glucose only.





Scand J Med Sci Sports 2001 Feb;11(1):33-7

Effect of acetate on glycogen replenishment in liver and skeletal muscles after exhaustive swimming in rats.

Nakao C, Yamada E, Fukaya M, Tayama K, Tsukamoto Y, Sato Y.

Department of Sports Medicine, Graduate School of Medicine, Nagoya University, Japan.

Immediately after exhaustive swimming, rats were given one of the following orally: distilled water (W), glucose (G); acetic acid (A); citric acid (C); glucose and acetic acid (GA); and glucose and citric acid (GC), and they were killed 2 h after ingestion (each trial: n=4). Exhaustive exercise resulted in a significant reduction of the glycogen store in the gastrocnemius muscle. The glycogen stores in the liver were significantly higher following ingestion in groups GA and GC, in the gastrocnemius in groups G, GA and GC, and in the soleus in group GC, than immediately post exercise. These results suggest that oral acetic acid with glucose can facilitate liver glycogen restoration during the early period of recovery, and that acetate has about the same physiological effects as citrate on glycogen replenishment.


Posted by: Dr. Pain

Good Stuff

I posted one on ACV affecting the GI of food and changing the rate of gastic emptying on "that other board", retrievible I presume for the industrious....I like this one!

ACV is good stuff too!

DP


Posted by: w8lifter

Yeah...I thought we posted that here too?


Posted by: Duncan

Most acids slow down gastric emptying, that is why sourdough bread has such a low GI. Hey w8, by the way...

So how u doin?


Posted by: w8lifter

Haven't heard that in a while


Posted by: Showdown

Quote:
Originally posted by Dr. Pain I posted one on ACV affecting the GI of food and changing the rate of gastic emptying on "that other board", retrievible I presume for the industrious
Nope, all posts deleted. I was just looking for something today and found out the bad news.


Posted by: w8lifter

Quote:
Originally posted by Showdown
Nope, all posts deleted. I was just looking for something today and found out the bad news.

Good thing I brought everything we needed over here!


Posted by: Dr. Pain

Not a problem...are you saying all of DP's or all?

Hi Showdown

Here it is...saved by w8, with her little comentary at the end:


This it?

Quote:
Fruits that have a low GI and are more acidic will help to lower the overall GI. The use of salad dressings containing vinegar and lemon juice also could be encouraged, because this results in further reductions in glycemic and insulin responses.[
Quote:
Here is the abstract!

Title: Delayed gastric emptying rate may explain improved glycaemia in healthy subjects to a starchy meal with added vinegar

Author: Liljeberg H.[1], Björck I.[1]

[1]Department of Applied Nutrition and Food Chemistry, Chemical Center, Lund University, PO Box 124, S-221 00 Lund, Sweden

Journal: European Journal of Clinical Nutrition, May 1998, vol. 52, no. 5 pp. 368-371
Abstract:


Objectives: The aim of the study was to evaluate the possible influence of acetic acid (administered as vinegar) on the postprandial glucose and insulin responses, and the potential involvement of a modified gastric emptying rate was studied by use of paracetamol as a marker.

Design: The white bread reference meal as well as the corresponding meal supplemented with vinegar had the same content of starch, protein and fat. The meals were served in the morning after an over-night fast and in random order. Capillary blood samples for analysis of glucose, insulin and paracetamol were collected postprandially.

Setting: The study was performed at the Department of Applied Nutrition and Food Chemistry, Lund University, Sweden.

Subjects: Ten healthy volunteers, seven women and three men, aged 22–51 y, with normal body mass indices were recruited.

Results: The presence of acetic acid, given as vinegar, significantly reduced the postprandial glucose (GI=64) and insulin responses (II=65) to a starchy meal. As judged from lowered paracetamol levels after the test meal with vinegar, the mechanism is probably a delayed gastric emptying rate.

Conclusions: Fermented foods or food products with added organic acids should preferably be included in the diet in order to reduce glycaemia and insulin demand.

Sponsorship: Cerealia Foundation for Research and Development (project no. 232).

Keywords: glucose and insulin responses, gastric emptying rate, acetic acid, vinegar, starch
BTW....I had already read this one too


Posted by: w8lifter




Posted by: Showdown

Quote:
Originally posted by Dr. Pain are you saying all of DP's or all?
All.

How are things? Warlord stepped into the picture forum today and I got to thinking about you. That's when I noticed the deletes.

No problem, I know where to find the stuff.


Posted by: Dr. Pain

Season's Greetings!

That's unfortunate......we all left quite a legacy in the archives, now lost....sad.

Did WARLORD put up his 'Beach Pics from Musclemania?".....

DP


Posted by: Showdown

Yup. Damn, talk about wheels.

You 'missed' the 2002 Natural Olympia in Tempe a month back. I think I was the only one in the audience... Horrible show.


Posted by: Showdown

BTW, HAPPY BIRTHDAY!

You must finally be at retirement age, right?


Posted by: Dr. Pain

WARLORD took second SHW at that one ...I had to work so he could go.....One of our Family took Second LW too.......It was in Mesa right....I like that theatre.

I heard the physique and fitness was so big...that the BB's got overlooked and they are considering 2 seperate shows.


I'm training Dr. J for March.......maybe see you there....I think it will be downtown again? (assuming there are NO problems between us? I have read your comments)

DP


Posted by: Showdown

Huh? Was I bad mouthing you?


Posted by: w8lifter

Maybe you should take it to pm?


Posted by: Dr. Pain

Quote:
Originally posted by Showdown
BTW, HAPPY BIRTHDAY!

You must finally be at retirement age, right?
Thank you....just a few more hours. Almost sold my store 6 weeks ago and did just that!

Now I'm an NPC Senior Master again...they raised the age one year, right after I made it last year!

w8 was going to resize that photo, and I was going to post it my Journal tomorrow, not sure if you took it, of the"Old Farts Age Group"

DP


Posted by: Dr. Pain

Quote:
Originally posted by Showdown
Huh? Was I bad mouthing you?
No you weren't and never have.....j you ust expressed the positive with the negative....it's forgotten as far as I'm concerned......

w8 is right though, (Damn twice in one week)...we should go private if you want to continue...

DP


Posted by: Tank316

old farts age groups, second thought, thats not funny.


Posted by: Showdown

No need to go to PM. Just wanted to say hi! and do some DP research...


Posted by: Dr. Pain

Ken...... it was nice to see you.......Hope you're doing well!

You're always welcome here!


A



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