FOUNDATIONAL TERM
frequency
频率
Number of activity sessions in a period.
Study this concept in context
48 · From walking to training: planning activity that works for you
A walk can be a starting point, but learning about exercise goes beyond advice to move more. This lesson connects muscle energy use and adaptation with intensity, weekly planning, progression and a practical review of how the body responds.
Sources
- WHO: Physical activity
- CDC: Adult activity guidelines
- CDC: Measuring activity intensity
- OpenStax: Exercise and muscle performance
- CDC: Adding activity as an adult
Definitions come from the published lessons. Read the linked lesson for mechanisms, conditions and examples.