J'ai essayé le glycérol avec comme inconvénient, beaucoup de difficultés pour l'avaler, une sensation de soif qui dure 4 heures et avantages après le training les muscles très durs, congestionnés et veineux si tu es sec ta peau est encore plus fine.
Je n'ai pas prolongé cette expérience trop difficile pour le ventre pour finalement une congestion qu'un peu meilleure. A noter que dans les "NO" on trouve du glycérol.
Protocole : 1 heure avant le training avaler par petites gorgées 1l d'eau + 50 à 80ml de glycérine. Les effets durent 2 heurs environ et le glycérol met quelques heures avnt de s'éliminer complètement.
L'effet pour nous en musculation c'est un effet de pompe de l'eau dans le muscle donc pour les compétiteurs qui maîtrisent un rebond intéressant.
voici un article de Sarcev sur le sujet
I have some experience with glycerin or
glycerol as I’ve used it for several shows in 1997. In theory it would work as ‘diuretic” or
dehydrating agent but it is EXTREMLY specific. If taken orally by itself it would have
dehydrating activity. But if taken with additional fluid it may act exactly the opposite and
cause hyperhydration – increase in total body water. Let me try to explain this. Glycerin’s
mechanism of action is based on “osmosis” ( passage of fluid from lower to higher areas
of concentration). Taken orally by itself glycerin would increase serum osmalility and in
turn cause fluid to be drawn from other parts of the body into the blood stream.
For competitive bodybuilders that means that unwanted extracellular water could be
drawn into our vascular system making as “dry” and vascular –what a wonderful
scenario. Only problem is that taking glycerin without water is just about worst
punishment you can experience ( did you see “Got milk?” commercial ?). The most
common adverse reactions are nausea, bloating, vomiting, diarrhea and other
gastrointestinal discomforts ( hardly desirable when you are on the stage –flexing!).
Working with some endurance athletes I witnessed significant improvement in their
performance and I contribute that to improved hydration accomplished with simultaneous
intake of fluid and glycerin. Many athletes that compete outdoors and in warm
environment would use this technique to improve thermoregulation and their endurance
keeping their bodies hydrated .But those are endurance athletes, not bodybuilders.
It would be hard for me to advise you to use glycerol for your bodybuilding competition.
However if you decide to try it –decrease your water intake once you start carbohydrate
loading and than night before the show take 2 to 5 tablespoons of glycerol (30-75 ml)
without the water . Also be very careful not to cut water for several days –like some
competitors do. When body becomes dehydrated there is less blood circulating in our
vascular system. When that happens our pituitary gland get the ”message” to start
producing antidiuretic hormone –which signals to our kidneys to retain as much water
as possible and produce less urine (something we certainly don’t want to happen).
Finally, let me mention that glycerin (glycerol) is common alcohol and consistuent of
neutral fats triacylGLYCEROLs –or better known as triglycerides.
Most of the NEW protein bars have considerable amount of glycerin in them (as a
fat substitute) and unfortunately companies don’t have to claim it as “carbohydratesource” –at least not until now. For people that would never compete and would never try above mentioned dehydrating method –I would only challenge them to
have one of those bars without drinking any fluid for at least one hour.
I am convinced that they would get new respect for competitive bodybuilders and
realize what we have to do to obtain the look we are presenting on the stage!http://forum.bodybuilding.com/showthread.php?t=164581