1.4 What data are required to perform an analysis with Ergoniza Intelligent?

Ergoniza Intelligent is a digital twin that models a person performing a particular activity. It therefore requires two types of information: information about the person performing the activity and information about the activity itself.

• The basic information about the person being assessed consists of sex, age range, height, weight, and body build. From these data, Ergoniza Intelligent calculates various biomechanical parameters, such as the length and weight of each body segment and the location of its center of gravity.

Additional information can be provided for more advanced analyses, such as the coefficient of friction between the footwear and the floor, shoe-sole height, or the person's dominant side (right- or left-handed).

• The information required about the activity depends on the selected operating mode. In general terms, it may include the posture or sequence of postures adopted, external loads or forces, supports, and the corresponding temporal information.

If the analysis focuses on a particular posture, the posture can be entered through the interactive graphical interface or captured from an image using the posture-detection systems. If the activity is analyzed over time, a posture sequence and its temporal information must be established. The sequence can be obtained from a video, imported from a motion-capture system, or captured in real time using a webcam or other compatible device. Lifting analysis also requires the lifting tasks and their temporal organization to be defined. Each task is characterized by its load, frequency, coupling, and origin and destination conditions. Independently, the temporal organization specifies the periods during which the task profile is performed and the recovery periods between them.