PAG 11 - exercise intensity

Investigation: how does altering exercise intensity alter heart rate?

Independent variables

intensity of exercise
- low intensity
  - walking
- moderate intensity
  - stepping

Dependent variable

Control variables

same people
- same day
pace
- metronome
temperature
- same location
- same day
measuring HR
- pulse oximeter
gender
- same people
- same day
fitness
- uncontrolled
age
- same people
- same day
caffeine/food
- uncontrolled
- assuming similar food intake as same time of day
footwear
- uncontrolled
- health and safety