• Corpus ID: 6913440

PROTEIN AND AMINO ACID METABOLISM DURING AND AFTER EXERCISE AND THE EFFECT S OF NUTRITION

@inproceedings{Rennie2005PROTEINAA,
  title={PROTEIN AND AMINO ACID METABOLISM DURING AND AFTER EXERCISE AND THE EFFECT S OF NUTRITION},
  author={Michael John Rennie and Kevin D. Tipton},
  year={2005}
}
■ Abstract Sustained dynami c exercisestimulatesamino acid oxidation, chiefly of the branched-chai n amino acids, and ammoni a production in proportion to exercise intensity; if the exercise is intense enough, there is a net loss of muscl e protein (as a resul t of decrease dproteinsynthesis , increasedbreakdown, or both); someof theamino acidsareoxidized asfuel, whereastherest providesubstrate sfor gluconeogenesiand possibl y for acid-base d regulation. Protei n balance is restored after… 
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References

SHOWING 1-10 OF 122 REFERENCES

An abundant supply of amino acids enhances the metabolic effect of exercise on muscle protein.

It is concluded that the stimulatory effect of exogenous amino acids on muscle protein synthesis is enhanced by prior exercise, perhaps in part because of enhanced blood flow, implying that protein intake immediately after exercise may be more anabolic than when ingested at some later time.

Metabolism of branched-chain amino acids and ammonia during exercise: clues from McArdle's disease.

The observations made in patients with McArdle's disease have led to the hypothesis that excessive acceleration of the metabolism of BCAA drains 2-oxoglutarate in the primary aminotransferase reaction and thus reduces flux in the citric acid cycle and impedes aerobic oxidation of glucose and fatty acids.

Increased rates of muscle protein turnover and amino acid transport after resistance exercise in humans.

Results indicate that, during recovery after resistance exercise, muscle protein turnover is increased because of an acceleration of synthesis and degradation and a postexercise acceleration of amino acid transport may contribute to the relatively greater stimulation of protein synthesis.

Protein Anabolic Actions of Insulin in the Human Body

  • W. BennetM. Rennie
  • Biology
    Diabetic medicine : a journal of the British Diabetic Association
  • 1991
Tracer techniques, used to assess protein turnover in people, have begun to provide insights into the effects of changes in insulin concentration per se, as well as the effectsof alterations of concentrations of substrates and other hormones which respond to withdrawal of insulin and to its replacement.

Effect of exercise on synthesis and degradation of muscle protein.

An increase in the proportion of free cathepsin D activity suggests that lysosomal enzymes may be involved in the increased protein degradation that was observed in exercised rats compared with sedentary control rats.

Amino Acid Metabolism During Exercise and Following Endurance Training

Calculations based on steady-state rates ofLeucine oxidation at rest and during exercise indicate that the recommended dietary intake of leucine is inadequate, since it is lower than measured whole-body rates of leukine oxidation.

11 Muscle Amino Acid Metabolism at Rest and During Exercise: Role in Human Physiology and Metabolism

It is proposed that the maximal flux in the TCA-cycle is reduced in glycogen-depleted muscles due to insufficient T CA-cycle anaplerosis, and that this presents a limitation for the maximal rate of fatty acid oxidation.

Protein degradation during endurance exercise and recovery.

Preliminary evidence suggests that the rate of degradation of non-contractile proteins in muscle may be increased at the same time that contractile protein degradation is decreased.

Muscle protein turnover: effects of exercise training and renal insufficiency.

Exercise training ameliorates the enhanced muscle protein degradation of moderate renal insufficiency and increases the responsiveness of muscle to insulin by reducing net protein degradation but did not further enhance the insulin-stimulated increase in protein synthesis.
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