What type of hazard is Mary most likely to encounter in her job that requires prolonged sitting at a computer terminal?

When working for prolonged periods while seated at a computer terminal, the primary concern is static posture. This refers to maintaining a fixed position for an extended time, which can lead to various musculoskeletal issues, such as discomfort or strain in the back, neck, and shoulders.

Individuals who are seated for long durations often experience fatigue in their muscles, as they are not engaging in movement that would promote circulation and muscle rest. Poor static posture can also result from an uncomfortable workstation setup, where the computer monitor, keyboard, and chair are not ergonomically arranged, thus exacerbating the risks associated with static posture.

In contrast, dynamic posture involves adjustments and movements that can help alleviate tension and prevent discomfort, making it less of a concern in this scenario. Repetitive motion hazards involve performing the same movement repetitively, while environmental hazards pertain to risks stemming from the physical surrounding, such as poor lighting or excessive noise. Mary’s situation primarily highlights the risks associated with maintaining a static posture due to continuous sitting.