What do you know about glycogen depletion and...

[berserker]

1) growth hormone stimulation
2) fat loss
3) recovery
4) insulin
5) hypertrophy

Any references would be cool too :)

[Trans_Isomer]

I dont know everything about what youve asked, but wanted to throw this in to help kick off this discussion.

I beleive GH secretion is also regulated by lactic acid, as interval training significally raises GH levels, most likely, due to raising lactic acid levels(1,2). Therefore, there probaly is a relationship between glycogen depletions and GH.

From Lyle Mcdonalds Ketogenic Book:

GH release during weight training appears to be related to lactic acid levels and the highest response is seen with moderate weights (~75% of 1RM), multiple long sets (3-4 sets of 10-12 repetitions, about 40-60 seconds per set) with short rest periods (60-90 seconds). Studies using this type of protocol (generally 3x10 RM with a 1' rest period) have repeatedly shown increases in GH levels in men (3,4) and women (5,6) and may be useful for fat loss due to lipolytic (fat mobilizing) actions of GH. Multiple sets of the same exercise are required for GH release (6).

(1) Chwalbinska-Monet J et. al. Threshold increases in plasma growth hormone in relationship to plasma catecholamine and blood lactate concentrations during progressive exercise in endurance-trained athletes. Eur J Appl Physiol (1996) 72: 460-467

(2) Nevill ME et. al. Growth hormone response to treadmill sprinting in sprint- and endurace-trained athletes. Eur J Appl Physiol (1996) 72: 460-467

(3) Hakkinen K and Pakarinen A. Acute hormal responses to two different fatiguing heavy-resistance protocols in male athletes. J Appl Physiol (1993) 74: 882-887

(4) Kraemer WJ et. al. Hormonal and growth factor response to heavy resistance exercise protocols. J Appl Physiol (1990) 69: 1442-1450

(5) Kraemer WJ et. al. Changes in hormonal concentrations following different heavy resistance exercise protocols in women. J Appl Physiol (1993) 75: 594-604

(6) Mulligan SE et. al. Influence of resistance exercise volume on serum growth hormone and cortisol concentrations on women. J Stength Cond Res (1996) 10: 256-262

Glycogen Levels Under Different Conditions

Condition Diet Glycogen Level (mmol/kg)

Supercompensated High Carb 175
Athlete Mixed Diet 110-130
Normal Individual Mixed Diet 80-100
Normal Individual (aerobic exercise only) Ketogenic Diet 70
Fat Burning Increases 70
Exercise Performance Decreased 40
Exhaustion 15-25

[berserker]

Thank you Mr. Isomer :)