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Cìè qualcuno che mi spiega l'utilità di prendere i bcaa durante un allenamento di BBing (durata max 50'), quando al giro d'Italia (ciclismo) i pro li prendono solo nelle tappe di montagna (5-6 ore in sella) e in quelle in pianura no? Vi amo.
Quindi ?
Il fatto che loro li prendo per le tappe di 5-6 ore esclude ogni altro uso ?
Sono anche "sforzi" di tipo diverso, aerobico ed anaerobico.
Il fatto che loro li prendo per le tappe di 5-6 ore esclude ogni altro uso ?
Sono anche "sforzi" di tipo diverso, aerobico ed anaerobico.
PEr sforzi di 50', pur se anaerobici, i bcaa durante li vedo inutili, e non sono il solo a pensarlo.
capolavoro di GABRIELE81
Grazie,grazie,grazie. Hai sconvolto le costruzioni dogmatiche attorno al concetto di "Immondità". E' roba dell'altro mondo, specie quando ti ergi a novello maestro di vita Do Nascimento. Inoltre ti ricostruisco alcuni accadimenti: la tua miss padania si fa trapanare da messer gran cefalo "pensando a te", però evidentemente "pensando a te" (c.d. scopate alla Bam) gli vien voglia di assaggiare ancora una volta il robusto mattarello del 27enne...
Li vedi inutili TU.
Dipende dalle situazioni , deplezione di glicogeno muscolare, dieta, etc, e non sono il solo a pensarlo
Senza polemica, davvero, mi spieghi come si può azzerare il glicogeno muscolare con un allenamento di 50' anaerobico intervellatato da pause? Stò parlando di un soggetto sano ben allenato.
capolavoro di GABRIELE81
Grazie,grazie,grazie. Hai sconvolto le costruzioni dogmatiche attorno al concetto di "Immondità". E' roba dell'altro mondo, specie quando ti ergi a novello maestro di vita Do Nascimento. Inoltre ti ricostruisco alcuni accadimenti: la tua miss padania si fa trapanare da messer gran cefalo "pensando a te", però evidentemente "pensando a te" (c.d. scopate alla Bam) gli vien voglia di assaggiare ancora una volta il robusto mattarello del 27enne...
perche' loro alex non sn natural....eheheheheh.....
onestamente credo che bcaa in base anche al regime e alle possibilita' economiche possano starci x massimizzare un regime integrativo...sicuramente nn diventerete grossi x quei 10g di bcaa...
Senza polemica, davvero, mi spieghi come si può azzerare il glicogeno muscolare con un allenamento di 50' anaerobico intervellatato da pause? Stò parlando di un soggetto sano ben allenato.
no ma infatti condivido il tuo pensiero quando parli di wo brevi...già superata l'ora il during ha un senso...
"Avrei potuto ucciderli tutti, avrei potuto uccidere anche te. In città la legge sei tu, qui sono io! Lascia perdere; lasciami stare o scateno una guerra che neanche te la sogni! "
"Avrei potuto ucciderli tutti, avrei potuto uccidere anche te. In città la legge sei tu, qui sono io! Lascia perdere; lasciami stare o scateno una guerra che neanche te la sogni! "
Senza polemica, davvero, mi spieghi come si può azzerare il glicogeno muscolare con un allenamento di 50' anaerobico intervellatato da pause? Stò parlando di un soggetto sano ben allenato.
Mha, difatti, non ha neanche molto senso discuterne tra noi, io potrei dirti di si, tu di no e così via in cerchio, ma studi CERTI che propendano per una posizione o per l'altra dubito che li troveremo.
Spesso si parla di bassi livelli di glicogeno e non di zero, insomma non un interruttore che si spegne e si accende, ma un intervento in proporzione al necessario :
Energy Metabolism
Energy metabolism consists of a series of chemical reactions that break down foodstuffs and thereby produce energy. The body traps about 20 percent of the energy that is produced and releases the remaining 80 percent as heat. This is why the body heats up during exercise.
Energy production in the human body revolves around the rebuilding of ATP molecules after they have been broken down for energy. ATP is the molecule that stores energy in a form that the body can use. This rebuilding of ATP molecules is accomplished in a number of ways, all of which correlate to the four main purposes for which energy is utilized during athletic performance - power, speed, strength, and endurance - and to the four basic types of physical activity - strength - power, sustained power, anaerobic power - endurance, and aerobic endurance.
When resting, the body derives most of its energy from the oxidative energy systems. But when physical activity begins, the nonoxidative energy systems kick in. When the exercise level becomes very intense, the nonoxidative immediate energy systems predominate. First, the ATP reserves in the muscle cells are drafted. However, these ATP reserves are depleted instantly - within a second. Therefore, if the exercise level remains very intense, resting CP stores are called upon, regenerating the ATP molecules, which can then continue to serve as the intense, the next nonoxidative energy system, glycolysis, jumps in. Nonoxidative glycolysis functions during near-maximum efforts lasting up to about one and half minutes. If helps maintain the intensity of the muscle contractions, even though the muscles' force output becomes diminished. When an ATP molecule releases its energy to power a muscle contraction, it is reduced to 1 adenosine- diposphate (ADP) molecule and 1 phosphate atom. In nonoxidative glycolysis, a glucose molecule is split in half to regenerate ADP back to ATP. Every glucose molecule releases enough energy to regenerate 2 ATP molecules. Nonoxidative glycolysis also results in the formation of lactic acid. Glycolysis takes place in the cytoplasm of a cell. Since the amount of free glucose in a cell is generally low, the glucose that is used is usually derived from the breakdown of glycogen. During intensive exercise, the oxidative energy systems also supply energy, but they contribute a much smaller share.
As the intensity of the exercise is reduced and the duration is increased - generally to more than three to four minutes - the oxidative systems include oxidative glycolysis and beta oxidation. In oxidative glycolysis, when the glucose molecule is split in half, it forms 2 molecules of pyruvate. These pyruvate molecules enter the Kerbs cycle, a process in which short chains of carbon atoms from glucose, fatty-acid, or protein molecules are broken down and the energy that is released is used to regenerate ATP molecules. The breakdown products of the Kerbs cycle are then shuffled into the electron transport system, a process in which electrons are passed between certain protein molecules, releasing energy that is used to regenerate additional ATP molecules. The complete catabolism of 1 molecule of glucose yields about 36 ATP molecules. In beta oxidation, fatty acids are metabolized. Each fatty-acid molecule is broken down into 2 carbon acetyl fragments. The acetyl molecules then combine with coenzyme A to form acetyl-coenzyme A (actryl-CoA). The acetyl-CoA molecule is shuffled to the krebs cycle and broken down, yielding energy to regenerate ATP. Oxidative energy metabolism is a slower process that nonoxidative energy metabolism, but it more completely breaks down the energy molecules - for example, glucose and fatty acids - and generates a lot more energy. The complete breakdown of 3 molecules of fatty acids containing 18 carbon atoms each yields about 441 ATP molecules.
Glycogen Depletion and The Metabolism of Fatigue
Glycogen is essential for good performance in both anaerobic and aerobic activities. Muscles that are being strenuously exercised rely on glycogen to power their strength - generating muscle contractions. In aerobic - endurance activities, the primary fuel is fatty acids, but glycogen is also utilized. In fact, fat catabolism works better when carbohydrates are metabolized at the same time. Research on aerobic - endurance exercise and work performance has shown that when glycogen is depleted in the body, fatigue sets in. Therefore, adequate carbohydrate intake and glycogen replenishment are vital factors for peak energy output.
Glycogen depletion is just one factor that contributes to the onset of fatigue, however. Some other factors are ATP and CP depletion, accumulation of lactic acid, buildup of calcium ions in the muscles, oxygen depletion, dehydration, and decreased blood pH. The proper conditioning of the body to enable it is to appropriately utilize the preferred energy systems is also important. If the body is poorly conditioned, it cannot properly use the energy systems appropriate for the activity, which can lead to early onset of Fatigue. To avoid this, focus your physical - conditioning efforts on developing the primary energy systems needed for your diet supplies the ideal fuel mix to enhance your physical conditioning.
Possibly Effective
Branched Chain Amino Acids (BCAA).
BCAA supplementation has been reported to
decrease exercise-induced protein degradation
and/or muscle enzyme release (an indicator of
muscle damage) possibly by promoting an
anti-catabolic hormonal profile (36, 38, 80)
.
Theoretically, BCAA supplementation during
intense training may help minimize protein
degradation and thereby lead to greater gains
in fat-free mass. There is some evidence to
support this hypothesis. For example, Schena
and colleagues (81)
reported that BCAA
supplementation (10 g/d) during 21-days of
trekking at altitude increased fat free mass
(1.5%) while subjects ingesting a placebo had
no change in muscle mass. Bigard and
associates (82)
reported that BCAA
supplementation appeared to minimize loss of
muscle mass in subjects training at altitude for
6-weeks. Finally, Candeloro and coworkers (83)
reported that 30 days of BCAA
supplementation (14 grams/day) promoted a
significant increase in muscle mass (1.3%)
and grip strength (+8.1%) in untrained
subjects. Although more research is
necessary, these findings suggest that BCAA
supplementation may have some impact on
body composition.
I "numerini" tra parentesi fanno riferimento alla bibliografia citata assieme allo studio in toto al link (lunghetto) :
Secondo la mia modestissima opinione per ridurre la deplezione di glicogeno, ammesso che questa ci sia, al limite si possono introdurre un pò di maltodestrine o vitargo durante il wo. I Bcaa (come dice lo studio) servono per preservare il catabolismo e non la deplezione di glicogeno, ma allora in questo caso forse meglio i glucogenetici. Ognuno secondo me deve fare quello che si sente, per fortuna siamo tutti diversi e ognuno reagisce in diversa maniera.
capolavoro di GABRIELE81
Grazie,grazie,grazie. Hai sconvolto le costruzioni dogmatiche attorno al concetto di "Immondità". E' roba dell'altro mondo, specie quando ti ergi a novello maestro di vita Do Nascimento. Inoltre ti ricostruisco alcuni accadimenti: la tua miss padania si fa trapanare da messer gran cefalo "pensando a te", però evidentemente "pensando a te" (c.d. scopate alla Bam) gli vien voglia di assaggiare ancora una volta il robusto mattarello del 27enne...
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