Short and Long Term effects on Body Systems

What happens to heart rate during exercise?

• It stays the same

• It increases

• It decreases

What is stroke volume?

• It is the number of heart beats per minute

• It is heart rate x cardiac output

• It is the amount of blood pumped per beat

• It is the volume of blood pumped per minute

How do you calculate cardiac output?

• Heart rate x stroke volume

• Heart rate - stroke volume

• Heart rate + stroke volume

• Heart rate divided by stroke volume

What is the maximum heart rate for a 20 year old? (using simplified equation)

• 180

• 190

• 200

• 210

Which of these influence recovery rate (tick all that apply)

• Fitness levels

• Type of exercise

• Gender

• Duration of exercise

When does lactic acid accumulate in the muscles

• When you are working anaerobically

• When you are working aerobically

• When you are resting

what is the key term we use when muscles tire?

• Contracted

• Overloaded

• Cramped

• Fatigued

How do we get rid of lactic acid in the muscles? (tick all that apply)

• We need oxygen to oxidise it

• Cool down properly and stretch

• Carry on working at high intensity

• Stop exercising instantly

After we work anaerobically, we need to take in more oxygen, why? (Tick all that apply)

• So we can carry on working anaerobically

• Replenish myoglobin stores

• Breakdown lactic acid into carbon dioxide and water

• Allow energy stores to be replenished

Why does stroke volume at rest increase after regular exercise?

• Heart hypertrophies and is able to pump more blood per beat

• Heart rate decreases

• You need more oxygen at rest when you are fitter

• It does not increase, it decreases