2 ERGONIZA INTELLIGENT OPERATING MODES

Ergoniza Intelligent can analyze human physical activities in three main operating modes: Single Posture, Multiple Postures, and Lifting. Each mode addresses a different type of ergonomic problem and uses a different unit of analysis.

In Single Posture mode, the analysis focuses on a specific body configuration. The assessor can define or capture a posture, enter the load and support conditions, and obtain results related to biomechanical exertion, joint loads, stability, lumbar compression and shear loads, the REBA and LUBA methods, or postural discomfort. This mode is suitable for assessing a representative posture, a critical posture, or a particular work situation.

In Multiple Postures mode, the analysis is performed on a time sequence of postures that may represent a complete activity, a work cycle, or a significant part of a task. This mode accounts for posture duration, transitions between postures, the evolution of loads over time, cycle repetition, and recovery periods. It is therefore suitable for analyzing cumulative phenomena such as cumulative exertion load or the evolution of postural discomfort over time.

In Lifting mode, the assessment is organized into one or more time periods and one or more lifting tasks. Each task is characterized by variables such as load weight, frequency, coupling quality, and load location at the origin and destination. The temporal organization defines the duration of the lifting periods and the recovery periods between them. All periods currently use the same task and frequency profile. From these data, the system calculates the Recommended Weight Limit and Lifting Index for each task and the Composite Lifting Index when several tasks are analyzed, following the procedure described in Section 13.

The selected mode determines the data that must be entered, the calculations available, and how the results should be interpreted. Before beginning an assessment, select the mode that best matches the type of task to be analyzed.

The operating mode is selected using the buttons at the upper center of the interface, as shown in Figure 1.

When switching modes, some data, postures, or settings that are incompatible with the new mode may be deleted or reset. Ergoniza Intelligent displays a warning before making these changes. To preserve the current assessment, save it before confirming the mode change.