What should laboratory personnel do to minimize strain?

Laboratory personnel should stretch frequently during long tasks to minimize strain. Engaging in regular stretching helps maintain flexibility and reduces the risk of muscle fatigue and injury that can arise from prolonged periods of repetitive movements or static postures. Stretching during tasks allows employees to alleviate muscle tension, promote circulation, and reset their posture, which is crucial in environments where they may be working at benches or with equipment for extended periods.

In contrast, only stretching after long tasks may not effectively prevent strain, as any tension built up during the work session would already be in place. Drinking water is important for hydration, but it does not address the issue of physical strain resulting from prolonged positions or repetitive actions. Finally, taking breaks only when tired does not proactively manage strain; regular scheduled breaks are more beneficial for sustaining energy levels and preventing fatigue. Thus, regular stretching throughout the work period stands out as the most effective strategy for minimizing strain in a laboratory setting.