With aerobic training, enhanced fat usage occurs is primarily due to OA. decreased protein synthesis OB. less SNS activation and increased enzymes for beta-oxidation during exercise OC. mechanical efficiency OD. altered neural control

During maximal exercise RER will not rise above 1.0 due to the buffering of lactic acid which provides additional CO2 above that produced from the use of carbohydrates:   Group of answer choices True False

can exercising a lot cause your vitamin D count to be low ?

Which is not a primary signal of aerobic exercise in skeletal muscle cells mechanical force O calcium ion O AMP levels O free radicals

Calcium initiates smooth muscle contraction by leading to the phosphorylation of calcium channels leading to the phosphorylation of myosin • activating myosin light chain phosphatase removing tropomyosin from actin

In the three different energy systems, name the energy compounds, and which systems are stressed during exercise of different intensities

All the enzymes listed below catalyze a reaction in the skeletal muscle. For an Olympic sprinter, which ones would be considered relevant during the running of a 100m sprint (select all that apply)? O glycogen phosphorylase O pyruvate kinase glycogen synthase O lactate dehydrogenase O adenylate kinase O pyruvate dehydrogenase O creatine kinase

Lactic acid that is produced during glycolysis is responsible for muscle fatigue. True False

What is the effect of acetylcholine on skeletal muscle cells? Osalivary secretion food digestion decreased contraction rate O force generation parasympathetic regulation ◄ Previous Lact checked at

As exercise of a set intensity occurs over several hours O The ratio of fat to carb calories used stays the same O The intensity of exercise decreases over time O The fraction of carbohydrate used goes down and the fraction of fat used increases O The fraction of carbohydrate used goes up over time, as the athlete runs out of breath