What MET value defines light exercise?

• A. 3.0 - 6.0
• B. Less than 3.0
• C. More than 6.0
• D. 0 - 2.0

Answer: (B)

The definition of light exercise is characterized by a MET value of less than 3.0. The MET, or Metabolic Equivalent of Task, is a unit that estimates the energy expenditure of various physical activities. Activities with a MET value below 3.0 typically involve low levels of energy expenditure and are often suitable for individuals who are just beginning an exercise regimen or who might have physical limitations. Examples of light exercise include walking slowly, light household chores, or stretching.

Understanding the context of the other MET values helps clarify why less than 3.0 is the benchmark for light exercise, as values ranging from 3.0 to 6.0 indicate moderate activity, which involves a greater energy expenditure than light activities. Similarly, activities classified as higher than 6.0 METs reflect vigorous exercise, requiring significantly more physical effort. With this framework, it becomes clear that less than 3.0 is the correct categorization for light exercise.