Short Term Effects 4.3 Flashcards
Immediate effects of exercise
Heart rate increase
Breathing rate increases
Body temperature increases
Skin turns red
Sweat
Fatigue
Light uewdness 0r dizzy
Nausea
Why is Herat rate a short term effect
Heart rate increases allowing more blood and oxygen to be delivered to the working muscles allowing us to convert glucose into energy at a much faster rate
More energy ATP can be produced via respiration
Adrenaline is released further increasing heart rate
Why is breathing rate a short term effect
Breathing rate increases allowing more oxygen to pass into the blood stream where it can be transported by the action of the heart
More oxygen can be transported in the blood to the working muscles increasing energy ATP production
The faster we breathe and the deeper our breaths are
1 Why is body temperature a short term effect
Increases as muscular contractions and respiration both produce heat
Enzymes lose their function at higher temperatures affecting the ability of our muscles to contract efficiently and muscles functions is impaired
Why is our skin turning red a short term effect
As heat is transferred from the blood to the atmosphere via radiation
Our skin turns red as blood vessels close to the skin become enlarged in increasing blood flow to the surface
Why is sweat a short term effect
Sweating is effective as water conducts heat 25x faster than air
Sweat evaporates from the surface of the skin carrying heat energy away from the body
That’s why you feel so cold when stepping out a pool
Why is fatigue a short term effect
Extremely tiredness resulting from physical exertion builds up during exercise
When performing Anaerobic activity such as sprint it produces lactic acid which accumulates in our fast twitch muscle fibres reducing the amount of force.
Aerobic activity such as long distance running depletes glucose over long durations and fatigue will be felt throughout the body as energy productions slows down
Why is nausea a short term effect
Náusea (an inclination to go,it) occurs after high intensity of exercise
Blood is diverted away from the digestive system and towards the working muscles where the demand for oxygen is higher digestion in the stomach slows down and we can feel sick as a result
Dehydration can make you feel nauseous
Drinking too much dilutes levels of electrolytes or minerals in your systems preventing them from working correctly
Why is light headedness or dizziness a short term effect
Occurs when we stop exercising
During exercise the heart works harder to pump more blood around the body and this causes the bloods vessels expand to allow for a stronger blood flow.
When we stop exercising the heart rate drops but your blood vessels may take longer to return to their normal size resulting in a reduction in blood,pressure this slows down the transportation of blood to the brain making us feel dizzy
