Muscle Fatigue
Muscle Fatigue
Monira Begum
How muscles work and get the energy they need to work.
Muscles need energy to work and move. (1) Their main source of energy is glucose. Glucose is made of a number of different types of carbohydrates (usually sugar) as well as milk and fruits. Glucose turns into other chemicals such as water and carbon dioxide which releases energy. (2)Your muscles get warm when using or burning energy. Glucose is sent to muscles through red blood cells; this is how muscles get the energy they need, to work. (2) Aerobic respiration is the way energy is released from glucose when working muscles contract and relax. Muscles normally work in pairs first one contracts (become shorter and wider) and the other relaxes (becomes longer and thinner) this is how they work when moving bones. (1)
Formula for aerobic respiration
Glucose + oxygen Carbon Dioxide + water (+ energy)
Muscle fatigue and what causes it
Muscle Fatigue is when a muscle gets tired and does not have the ability to generate a force. It can occur because of too much vigorous exercise (aerobic respiration). Lactic acid is produced when there is a high demand for energy, when there is too much the body gets tiresome and weakens the muscle. (3)You can get rid of lactic acid by doing the right amount of exercise that your body needs and doing it periodically.
How muscles recover after exercise (Repaying oxygen debt)
When you exercise you breathe heavily because your body uses a lot of oxygen. Your body needs to transfer oxygen to your muscles quickly so they can work properly. Your muscles will fatigue quickly if you body fails to transport oxygen to your muscles. Anaerobic respiration is used to obtain energy. Less energy is released during anaerobic respiration creating a by-product (lactic acid).During anaerobic respiration oxygen is used to keep your muscles working. Red blood cells help to transport oxygen to your muscles. Oxygen debt is when at some point
Monira Begum
How muscles work and get the energy they need to work.
Muscles need energy to work and move. (1) Their main source of energy is glucose. Glucose is made of a number of different types of carbohydrates (usually sugar) as well as milk and fruits. Glucose turns into other chemicals such as water and carbon dioxide which releases energy. (2)Your muscles get warm when using or burning energy. Glucose is sent to muscles through red blood cells; this is how muscles get the energy they need, to work. (2) Aerobic respiration is the way energy is released from glucose when working muscles contract and relax. Muscles normally work in pairs first one contracts (become shorter and wider) and the other relaxes (becomes longer and thinner) this is how they work when moving bones. (1)
Formula for aerobic respiration
Glucose + oxygen Carbon Dioxide + water (+ energy)
Muscle fatigue and what causes it
Muscle Fatigue is when a muscle gets tired and does not have the ability to generate a force. It can occur because of too much vigorous exercise (aerobic respiration). Lactic acid is produced when there is a high demand for energy, when there is too much the body gets tiresome and weakens the muscle. (3)You can get rid of lactic acid by doing the right amount of exercise that your body needs and doing it periodically.
How muscles recover after exercise (Repaying oxygen debt)
When you exercise you breathe heavily because your body uses a lot of oxygen. Your body needs to transfer oxygen to your muscles quickly so they can work properly. Your muscles will fatigue quickly if you body fails to transport oxygen to your muscles. Anaerobic respiration is used to obtain energy. Less energy is released during anaerobic respiration creating a by-product (lactic acid).During anaerobic respiration oxygen is used to keep your muscles working. Red blood cells help to transport oxygen to your muscles. Oxygen debt is when at some point