Over the past few weeks, I’ve written about why it’s important to measure the amount and direction of force that a worker uses, and why the worker’s body position matters. This week, I wanted to explore the impact of frequency and duration. “How often” and “for how long” an effort occurs have a big effect […]
When you see a worker pushing, pulling, or lifting a load, you might wonder how much effort they are using. As an ergonomist in a workplace, we are usually compelled to measure that force. We can use a force gauge to measure the weights and push/pull forces required on the job. You might also think […]
Hallowe’en seems like the perfect time for a discussion about “visibility” and “line of sight”. Masks and other costumes can obstruct a trick-or-treater’s vision; a child may not see approaching people or vehicles, and may trip and fall over obstacles that they cannot see. When you can only see forward, your peripheral vision is impaired; […]