Question

The primary effect of the elevated plasma concentration of growth hormone during intense exercise is to

Answer 1

Answer:

This question lacks options, options are:

A. increase the synthesis of contractile protein in muscle.

B. promote long bone growth.

C. favor the mobilization of FFA and reduces tissue use of blood glucose.

D. none of the above.

The correct answer is A.

Explanation:

Plasma concentration is the amount of a substance (hormones, glucose, proteins, among others) that circulates in the blood. The main action of growth hormone is to stimulate protein synthesis, through the mobilization of amino acid transporters, in a manner analogous to glucose and insulin transporters. In addition to stimulating protein synthesis, the growth hormone simultaneously mobilizes fat by direct lipolytic action. The processes of muscle protein synthesis and muscle protein breakdown occur simultaneously. This constant turnover of proteins allows the muscle fibers to modify their structure when the demands of loads or food vary. The plasticity of skeletal muscle in responding to changing loads or contraction patterns is evidence of the ability to remodel present in fibers. While resistance exercise significantly stimulates the synthesis of muscle contractile (myofibrillar) proteins, resistance exercise will have a greater impact in stimulating mitochondrial protein synthesis, thus allowing a specific muscle adaptation to exercise.