Practise calculating BMI or WHR, applying thresholds and graph data, and explaining how diet, exercise, weight and smoking changes reduce CHD and CVD risk.
Obesity increases the risk of cardiovascular disease (CVD).
Body mass index (BMI), waist-to-hip ratio (WHR) and skinfold thickness are indicators of obesity.
The table shows some measurements taken from two females, female J and female K.
Comment on the risk of developing CVD in these two women.
The diagram shows how the waist and hip measurements should be taken, using a tape measure.
Explain how the way a person takes these measurements could produce an underestimate of their risk of CVD.
The diagram shows how a skinfold thickness measurement is taken over the triceps muscle at the back of the arm.
Skinfold thickness measures the thickness of the layer of fat under the skin.
Measurements are taken from several sites on the body.
The table shows the skinfold thickness at four sites on a 42-year-old female.
Suggest two reasons why the skinfold thickness values are different at each site on the body.
Assume that the skin callipers have been used correctly.