Effects of exercise

• what would be the dependent variable in this equation?

  • pulse rate or breathing rate
• what does the investigation involve?

  • firstly taking your resting pulse rate
  • perform exercise A for 2 minutes and immediately take pulse rate
  • rest 3 minutes to return pulse to resting
  • repeat steps 2 and 3 twice more and calculate average
  • carry out steps again or four other exercises
  • calculate the change in pulse rate and plot a graph
• what's the independent variable?

  exercise length or exercise type