How is sickness defined biomechanically?

Sickness is biomechanically defined as disrupting the body's ability to maintain homeostasis. Homeostasis refers to the body’s physiological equilibrium, where internal conditions such as temperature, pH, and other vital functions are kept within certain limits despite external changes. When an illness or condition affects the mechanical and physiological processes of the body, it leads to an inability to regulate these internal conditions effectively. This can result in various functional impairments or altered movement patterns, illustrating how biomechanics is directly related to health status and overall functionality.

The focus on maintaining homeostasis incorporates more than just physical symptoms; it encompasses the entire system's ability to adapt to stresses and recover from disruptions, which is crucial in understanding biomechanical principles in clinical settings.