It is well established that, the postmortem energy metabolism or glycolysis (lactate) in muscle is highly relevant to the ultimate meat quality, and the muscle glycolytic flux early postmortem is mainly related to the phosphagen
system and glycolytic enzymes activities .
pathway energy predominance) between sprints and jumps led to the assumption that these motor actions are highly related to each other in professional soccer players (13,18).
Also, anaerobic power is described as a capability to utilize an individual's phosphagen
system in a high volume and short-term muscle activities and show an individual's maximal efficiency in the first seconds (Reiser, 2002).
The physiological requirements of bowling reveal that the muscle activity required is fuelled mainly by the phosphagen
breakdown system (13).
Energy requirements for short-term maximal exercises are mostly obtained through the anaerobic glycolysis and phosphagen
Power performance is highly dependent on the phosphagen
energy system, which requires 4 min for replenishment after an intense exercise set (Harris et al.
The depletion of acetylcholine results in an interruption of the neural impulse to contract, and the phosphagen
depletion reduces ATP and phosphocreatine.
The significant activation of the glycolytic pathway can be explained by the effort/pause ratio of 6:1 (effort: 117 s (65-150 s), pause: 20 [+ or -] 14 s) noted in this study, since the brief periods of pause are insufficient to fully restore the phosphagen
128) In fact, a temporary decrease in the content of ATP as well as that of phosphagen
has been observed immediately after dilution.
This increase on day 1 may be due to the regeneration of ATP through the action of the adenylate kinase enzyme, or to the utilization of the phosphoarginine phosphagen
in a reaction catalyzed by the arginine kinase enzyme, as has been reported for other species, such as the abalone Haliotis discus (Watanabe et al.
Evolution and physiological roles of phosphagen
To keep it simple, there are three main metabolic pathways we use to perform physical activity--the phosphagen
pathway, the glycolytic pathway, and the oxidative pathway--and one pathway to convert food into energy--the citric acid, or Krebs cycle.