Davide perchè dici cosi?
L' indice glicemico del Fruttosio è 19 e quello del Saccarosio è 68
qualche cosa cambierà!!
Come dice Barry Sears quel che conta è la calma insulinica!
giusto, se tutto sommato vuoi dimagrire e conti le "caloriette".
però, nello sport funziona diversamente, l'innalzamento della glicemia causa rilascio di insulina, un POTENTISSIMO ORMONE ANABOLIZZANTE, il cui utilizzo esogeno è considerato doping GRAVE, ma l'insulina fa parte della "trousse" di qualsiasi atleta di endurance (e non) che usa sostanze dopanti, un motivo ci sarà.
l'insulina ENDOGENA (quella prodotta dal tuo pancreas) va opportunamente gestita, ma è un'ormone importantissimo.
fonte:
http://joe.endocrinology-journals.org/content/170/1/13.full.pdf+html
Is insulin a performance-enhancing drug?
Thus from our understanding of insulin physiology we
can see different ways in which insulin might be a
performance-enhancing agent.
1. Through facilitating glucose entry into cells in
amounts greater than needed for cellular respiration
it will stimulate glycogen formation. Thus hyperinsulinaemic clamps will both increase muscle glycogen concentrations prior to events and in the recovery
phase after events. Since performance in many events
is known to be a function of muscle glycogen stores, bulking up these stores will most probably enhance
performance. There is no documental proof that this
technique is being used but informed street talk
indicates that it is not uncommon.
2. Through use of similar hyperinsulinaemic clamps
post-event and during training, it is likely that
recovery and stamina will be improved.
3. Street talk indicates that insulin is also being used in
a more haphazard way, particularly to increase muscle
bulk in body builders, weight lifters and power lifters.
This use is allegedly by regular injections of shortacting insulin together with high carbohydrate diets.
Through this therapeutic regime it is almost certainly
possible to increase muscle bulk and performance not
only through increasing muscle glycogen stores on a
chronic basis but also by increasing muscle bulk
through inhibition of muscle protein breakdown. Just
as insulin has a chalonic action in inhibiting glucose
breakdown in muscle glycogen, it also has an equally
important chalonic action in inhibiting protein breakdown. Indeed, the evidence now indicates that insulin
does NOT stimulate protein synthesis directly (this
process is under the control of GH and insulin-like
growth factor-I (IGF-I)). It has long been known that
insulin-treated patients with diabetes have an increase
in lean body mass when compared with matched
controls (Sinha et al. 1996).
Taken together, all these points support the concern
shown by the Russian medical officer in Nagano and the
immediate response of the IOC to ban the use of insulin in
those without diabetes.
per chi non capisce l'inglese, questa è una spiegazione alla "un mio amico m'ha detto..." ma non si trova di meglio, si aprla di BB, ma è trasferibile ad ogni sport
http://www.italianbody.com/insulin-anabolic-doping-perfect/
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