Short term effects of systems

• CV when you start to excercise there is an increase in: heart rate, stroke volume, blood pressure and cardiac output (SV X HR), and vascular shunting
• Respiratory are increased depth of breathing, rate of breathing, gaseous exchange increase and therefore tidal volume and oxygen deficit
• The cardiovascular and respiratory system work together to increase oxygen delivery to working muscles
• Heart rate- the number of times the heart beats per minute
• Stroke volume- the amount of blood leaving the heart each beat
• Cardiac output- HR x SV, the amount of blood leaving the heart per minute
• Breathing rate- the number of breaths per minute
• Recovery rate- the amount of time it takes for heart rate to return to resting rate
• Anaerobic energy production leads to muscle fatigue due to increased acidity in the cells and lactate accumutation due to lack of oxygen
• Muscle fatigue- when the efficiency of the muscle drops, reducing level of performance
• Lactate- a chemical formed through anaerobic respiration
• Lactate accumulation- when the levels of lactate start to build up in the muscle or blood
• When you start to excercise the muscles require energy quickly so use the oxygen stores in muscle (myogloblin) and haemoglobin in the blood
• During anaerobic respiration an oxygen deficit occurs
• During recovery oxygen is required to: replenish myoglobin stores with oxygen, break down or lactic acid into carbon dioxide and water, allow energy stores in muscles to be replenished
• When these short term effects occur the performer will have to lower intensity