Thread: feelin the burn

No, the burn does not mean you've successfully trained your muscles for hyperthrophy.

no, burn doesn't mean shit

are you making gains? train movements- read the stickies, and if your goal is size check out the diet stickies also

The burn is from lactic acid buildup. I generally don't feel that until I exceed 15 reps or so, rapidly.


http://www.brianmac.demon.co.uk/lactic.htm

The lactic acid system is capable of releasing energy to resynthesise ATP without the involvement of oxygen and is called anaerobic glycolysis. Glycolysis (breakdown of carbohydrates) results in the formation of pyruvic acid and hydrogen ions (H+). A build up of H+ will make the muscle cells acidic and interfere with their operation so carrier molecules, called nicotinamide adenine dinucleotide (NAD+), remove the H+. The NAD+ is reduced to NADH which deposit the H+ at the electron transport gate (ETC) in the mitrochondria to be combined with oxygen to form water (H2O).

If there is insufficient oxygen then NADH cannot release the H+ and they build up in the cell. To prevent the rise in acidity pyruvic acid accepts H+ forming lactic acid which then dissociates into lactate and H+. Some of the lactate diffuses into the blood stream and takes some H+ with it as a way of reducing the H+ concentration in the muscle cell. The normal pH of the muscle cell is 7.1 but if the build up of H+ continues and pH is reduced to around 6.5 then muscle contraction may be impaired and the low pH will stimulate the free nerve endings in the muscle resulting in the perception of pain (the burn). This point is often measured as the lactic threshold or anaerobic threshold or onset of blood lactate accumulation (OBLA).

Read about anaerobic thresholds in the same link.

Just one of many aspects in conditioning your body, even in weight training.

BTW - Read the stickies... you're gonna hear. You need a "new approach".

And if thats your ENTIRE program up there ill lose sleep tonight. You have other muscles!

thats one day of 4

Originally Posted by JimSnow

The burn is from lactic acid buildup. I generally don't feel that until I exceed 15 reps or so, rapidly.


http://www.brianmac.demon.co.uk/lactic.htm

The lactic acid system is capable of releasing energy to resynthesise ATP without the involvement of oxygen and is called anaerobic glycolysis. Glycolysis (breakdown of carbohydrates) results in the formation of pyruvic acid and hydrogen ions (H+). A build up of H+ will make the muscle cells acidic and interfere with their operation so carrier molecules, called nicotinamide adenine dinucleotide (NAD+), remove the H+. The NAD+ is reduced to NADH which deposit the H+ at the electron transport gate (ETC) in the mitrochondria to be combined with oxygen to form water (H2O).

If there is insufficient oxygen then NADH cannot release the H+ and they build up in the cell. To prevent the rise in acidity pyruvic acid accepts H+ forming lactic acid which then dissociates into lactate and H+. Some of the lactate diffuses into the blood stream and takes some H+ with it as a way of reducing the H+ concentration in the muscle cell. The normal pH of the muscle cell is 7.1 but if the build up of H+ continues and pH is reduced to around 6.5 then muscle contraction may be impaired and the low pH will stimulate the free nerve endings in the muscle resulting in the perception of pain (the burn). This point is often measured as the lactic threshold or anaerobic threshold or onset of blood lactate accumulation (OBLA).

Read about anaerobic thresholds in the same link.

Just one of many aspects in conditioning your body, even in weight training.

BTW - Read the stickies... you're gonna hear. You need a "new approach".

that is dated info.

The burn is actually hydrogen ions agrravating nerve endings, produced as a byproduct of anaerobic metabolism. The lactic acid is produced, when pyruvate accepts the H+ ion, as a way for your body to efficienlty buffer hydrogen ions, by helping to convert NADH back to NAD+, so that it can pick up more hydrogen.