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
Yes. Strenuous exercise can kill the muscle fibers. Such muscle fibers are replaced by fibrous tissue.
Slow twitch muscle fibers have more mitochondria compared to fast twitch muscle fibers because they rely more on aerobic metabolism for energy production, which requires a higher number of mitochondria to generate ATP efficiently.
It depends on the type of skeletal muscle. Slow and fast oxidative fibers (type I and type IIa) may have many mitochondria. Fast glycolytic fibers (type IIx/IIb) have very few mitochondria. This is because in fast glycolytic fibers (type IIx/IIb) ATP can be produced outside of the mitochondrion in the cytosol of the cell due to high concentrations of glycolytic enzymes present in these fibers. In contrast, in oxidative fibers ATP is produced mostly within the mitochondrion, so more mitochondria are needed to to produce large amounts of ATP. Also, the number of mitochondria in these cells can increase with adaptations to exercise conditioning.
Type I muscle fibers
Muscle strength depends on the thickness of the fibers and the number of fibers contract at one time. And in order to compensate for the added work load,myofibrils are added in in order to increase the thickness of the fibers (more myofibrils,more thickness), hence a stronger muscle.
One can increase the number of mitochondria in muscle cells through regular aerobic exercise, such as running or cycling. This type of exercise stimulates the production of new mitochondria in the muscles, leading to improved energy production and endurance. Additionally, consuming a diet rich in nutrients like antioxidants and omega-3 fatty acids can also support mitochondrial biogenesis.
Slow twitch muscle fibers have more mitochondria than fast twitch muscle fibers because they rely more on aerobic metabolism to produce energy for sustained, endurance activities. Mitochondria are the powerhouse of the cell and are responsible for producing energy in the form of ATP through aerobic respiration. Since slow twitch fibers require more sustained energy production, they have more mitochondria to support this process compared to fast twitch fibers, which rely more on anaerobic metabolism for quick bursts of energy.
Muscle cells increase in size (hypertrophy) and in number of mitochondria, which are responsible for producing energy. Additionally, exercise can lead to an increase in the concentration of myoglobin, which helps store and transport oxygen in the muscles.
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When the body is inactive, muscle cells or fibers undergo gradual atrophy, leading to a decrease in size and strength. This occurs due to a decrease in protein synthesis and an increase in protein breakdown. Regular exercise is necessary to maintain muscle mass and function.
Muscle hypertrophy is the thickening or increase in the size of existing muscle fibers. This process occurs in response to resistance training or overload, leading to an increase in muscle strength and size.
There are two types of muscle in the body. The Cardiac Muscle and the Skeletal Muscle. The skeletal muscle is made up of intrafusal and extrafusal fibers. The Muscle Belly is made up entirely of extrafusal fibers (even in the deepest parts). The intrafusal fibers are located throughout the muscle. The cardiac muscle is distinct from skeletal muscle, one of the main differences is the amount of mitochondria it has is increased, and so technically at the deepest part of cardiac muscle is mitochondria (but there are other components as well).