Ключевые слова: activity, adult, caucasian, clean, concentration, construction, digging, dirt, earth, effort, energy, engineering, environment, equipment, excavation, fitness, force, garment, gear, grip, hardhat, helmet, industry, job, labor, male, manual, mechanics, outdoor, physical, project, protection, protective, reflective, safety, shovel, site, soil, task, technique, tools, trench, vest, work, worker, worker focused, wrist,