Short term effects of exercise

5 things exercise impacts short term

Temperature

Cardiovascular

Blood flow

Respiratory

delivery of blood flow

Short term effects on Temperature

Increase in body/muscle temperature

When muscles work they produce heat, raising body temperature

Why does body Temperature increase during exercise

Increased respiration in muscles, which releases thermal energy (heat)

How does the body cool down

Sweats to lose heat through evaporation

Sends more blood to skin (vasodilation) to release heat

It can be checked with a thermometer or sensor

Short term effects on cardiovascular

Increase in heart rate, stroke volume, cardiac output

Due to increased stroke volume more blood is pumped per beat

This helps deliver more Oxygen and glucose fo the muscles.

What is used to track heart rate

Heart rate monitor

Short term effects of blood flow

Redistribution of blood flow

During exercise more blood is sent to working muscles

Blood vessels widen (vasodilation) to let more blood through. At the same time, vessels narrow (vasoconstriction) to reduce blood flow to resting muscles and less important organs

Short term effects of respiratory

Breathing rate increases, can rise 15-30 more breaths per minute during exercise

Tidal volume increases so each breath becomes deeper and means more oxygen is inspired and carbon dioxide expired

What is used to measure/analyse breathing

Spirometry

Short term effects on delivery of oxygen

More oxygen to working muscles

More oxygen is inspired and carried by the blood to the muscles

Heart pumps faster and harder to deliver this oxygen to where it’s needed most

Short term effects of anaerobic respiration

More carbon dioxide production as you breathe out

More lactic acid leading to tiredness and muscle fatigue