What makes ergonomics difficult to implement?

The correct choice highlights a significant challenge in implementing ergonomics: the variability in individual comfort and body mechanics. A workstation designed to be ergonomic for one person might not suit another due to differences in height, reach, strength, and personal preferences. Each individual has unique anatomical and physiological characteristics, which means that ergonomic solutions cannot have a one-size-fits-all approach.

To address this diversity, workstations often need to be adjusted or customized based on the specific needs of each worker, which can complicate the design and implementation process. This variability necessitates a flexible design that can accommodate a range of users, making it more challenging to create a standardized ergonomic solution that works effectively for everyone.

In contrast, aspects such as the size of workstations or the adjustability of tools impact ergonomics but do not fundamentally address the core issue of individual variability and comfort. Additionally, while extensive training for ergonomics can enhance implementation, it is not the primary factor that complicates its application compared to the diverse needs of different individuals.