Prolonged use of certain tools without proper ergonomics can result in:

Prolonged use of certain tools without proper ergonomics can lead to increased injury risk due to factors such as repetitive motions, awkward postures, and excessive force. When tools are not designed with the user's body mechanics in mind, they can cause strain and stress on muscles and joints. Over time, this can result in musculoskeletal disorders (MSDs), which may manifest as chronic pain or injuries in areas such as the back, wrists, and shoulders.

Adequate ergonomic practices aim to minimize these risks by ensuring that tools and workstations are designed to fit the user’s needs, promoting healthier postures and movements. For example, using tools that are properly sized, beneficially shaped, and well balanced can alleviate strain and reduce the likelihood of injury.

While the other choices could seem plausible in different contexts, they do not directly address the potential negative outcomes related to prolonged tool use without ergonomic considerations. Higher focus, reduced efficiency, or greater job satisfaction are not outcomes that logically align with the risks posed by poor ergonomics in tool use. Instead, the focus should be on how ergonomic interventions can lower the risk of injury and promote well-being in the workplace.