A large, well-conducted study showed that 12 hours of regular moderate intensity exercise per week is associated with a 20 per cent reduction in coronary heart disease. We can correctly infer that ________.

Question

Quizplus · Accepted Answer

The study shows that there is a correlation between 12 hours of exercise per week and a 20% reduction in coronary heart disease. This means that, in a similar population, there would be a decrease of 20% in the number of heart attacks. However, it does not necessarily mean that an individual who exercises 12 hours per week will definitely reduce their risk of coronary heart disease by 20%. Additionally, the study does not provide evidence for the statement that inactivity causes heart attacks, nor does it indicate that the more exercise, the greater the benefit for cardiac health.

A Large, Well-Conducted Study Showed That 12 Hours of Regular