Sedentary employees may face a gradual deterioration in health if they do not exercise or do not lead a physically active life. Such people need to take serious measures to avoid health problems. For those well-acquainted with their phones, computer screens and office chairs, squeezing recommended amounts of physical activity into each day can be a challenge. Our bodies are evolved to be physically active. Over thousands of years of evolution, the human body was designed to walk 30 to 35 miles a day, but in the last 100 years steps have been engineered out of modern life, he said. Without the movement, the body can’t work the way it is designed to. “Every function in our body is predicated on movement, and we’ve taken that away,”said Mr. Bordley, CEO of Trek Desk Inc., which sells desks designed so users can walk on a treadmill while doing their work. His product and others like it are designed based on the “caveman theory.”When you sit, there are a lot of things that happened to your body and none of them are good.” Dr. Catrine Tudor-Locke, director of the Walking Behavior Laboratory at Pennington, is on the cutting edge of “the science of sitting down” and has worked extensively with step-counting devices called pedometers. She said there is no universally endorsed ideal number of steps per day, but there is a “general acceptance” within the scientific community of a 10,000-step daily goal. Most people in the United States take around 6,000 per day, though few if any studies have been done to determine how many of those are taken at work, she said. Before finding out the results, Joan Randall, director of the Vanderbilt Institute for Obesity and Metabolism guessed landscapers, mail carriers and construction workers would have high step counts, while teachers, drivers and engineers would have low counts.