The SAID principle (specific adaptation to imposed demands) suggests that a framework of specificity is a necessary foundation on which exercise programs should be built. This principle applies to all body systems and is an extension of Wolff’s law (body systems adapt over time to the stresses placed on them). The SAID principle helps therapists […]

The three elements of muscle performance strength, power, and endurance can be enhanced by some form of resistance exercise. To what extent each of these elements is altered by exercise depends on how the principles of resistance training are applied and how factors such as the intensity, frequency, and duration of exercise are manipulated. Because […]

Functional limitations in the physical domain deal with the performance of sensorimotor tasks, that is, total body actions that are typically components or elements of functional activities. These activities include basic activities of daily living (ADL), such as bathing, dressing, or feeding, and the more complex tasks known as instrumental activities of daily living (IADL), […]