What in muscle cells increase as a result of exercise?

Existing muscle cells increase in diameter.

During exercise muscle cells use oxygen.

Up until one's mid-20s (in terms of age), there occurs not only muscle hypertrophy (enlargement of each muscle cell) with exercise, but also hyperplasia (increase in the number of muscle cells .. and, therefore, increase in the overall number of mitochondria). ...

I'm assuming you just meanskeletal muscle fibers. Aerobic exercise (endurance or running) promotes an increase in capillary penetration, the number of mitochondia and increased synthesis of myoglobin leading to more efficient metabolism. Resistance exercise (weight lifting) promotes increases in mitochondria, myofilaments, myofibrils, and glycogen storage. All these things lead to hypertrophy, or increase in the SIZE of muscle cells (NOT hyperplasia, an increase in the number of cells. Skeletal muscle NEVER undergoes hyperplasia). ...

More oxygen is delivered to muscle cells .

Myoglobin is a protein within the muscle tissue which acts as an oxygen carrier. As a long term effect of exercise. The ability of the muscles to store myoglobin is increased. Because muscles increase their oxidative capacity through regular exercise, the myoglobin stores also increase because they get used to the demands of exercise and work placed upon them so increase stores as they will be needed. The increase in oxidative capacity is achieved by an increase in the number of mitochondria within...

Exercise causes your muscle cells to widen and grow so that that muscle becomes bigger and stronger. ...

Muscle cells don't use fat cells when they are burned. An increase in muscle can raise the metabolism causing the muscle cells to burn off the fat cells in storage. ...

Because the muscle cells that are in the muscles break away from the rest of the muscle cells when exercising and are brought back together when protein is taken in. This causes muscle mass to increase ...

That would be hypoxia; this occurs in muscle cells during and after strenuous exercise. ...

Unfortunately, there is no way to convert fat cells into muscle cells. You need to decrease the size of fat cells and to increase the size (and perhaps quantity) of muscle cells. ...

Muscles are made up of cells, like the rest of the body. The number of muscle cells in each muscle does not change. When your muscles increase in size the individual muscle cells are growing in size, not multiplying. So, yes muscles do grow but the number of cells does not increase. ...

Fermentation in muscle cells produces lactic acid. This happens when you have overworked your muscles, which can happen during exercise. ...

intense exercise of short duration

Utilized as a fuel within the muscle cells only

Oxygen Debt- A cumulative deficit of oxygen resulting from intense exercise; the deficit must be made up when the body returns to rest. ...

They are the result of the fusion of precursor nucleated cells during their differentiation into skeletal muscle cells. ...

Exercise by muscle cells causes a drop in the pH of the blood, making it more acidotic. ...

more oxygen is delivered to muscle cells

the cells rapidly increase with exercise, therefore creating more mitochondria. the mitochondria is also related to metabolism and more mitochondria your body makes during exercise, the faster your metabolism gets. lime and pickle juice are actually great catalysts to double your amount of mitochondria ...

Lactic acid fermentation

During exercise our muscles contract and relax faster then in normal condition wihich means that muscle cells demands more oxygen which led to the increase in the blood circulation and so the breathing rate become increased during exercise ...

It releases oxygen, which allows your body to breathe, therefore allowing your muscle cells to produce ATP. ...

It oocurs in muscle cells during heavy exercise. :]

Lactic acid fermentation takes place in human muscle cells when strenuous exercise causes temporary oxygen shortages. ...