In February 2012, Ergotron participated in a scientific study with the University of Minnesota (School of Public Health) and the Mayo Clinic called, “The Effect of Sit-Stand Workstations on Physical Activity in Sedentary Office Workers: A Randomized Crossover Trial.”
When we first blogged about it in, “What’s the skinny on sit-stand desks? (Hint, it has to do with magic underwear),” the study was just about to begin. Emphasis was on increasing the understanding of how prolonged sitting can lead to such serious issues as diabetes, cancer and cardio-vascular disease.
“The primary purpose of our research is to establish whether the use of sit-stand desks to reduce sitting time was both feasible and effective,” said Carrie Schmitz, Sr. Manager Ergonomic Research at Ergotron and coauthor of the study.
So where does the “magic underwear” fit into that? Explains Schmitz, “Each participant wore a posture measurement device designed by Dr. David Levine and his researchers at the Mayo clinic. Essentially these were bike pants fitted with accelerometers and worn beneath normal clothing that told us whether participants were sitting, standing or walking.”
A formal announcement of the study occurred last May in Chicago when lead researcher Nirjhar Dutta presented the study findings at the American Diabetes Association 73rd Scientific Sessions.
Based on the data gathered in 2012, the feasibility aspect of the study hypothesis was proven because it was demonstrated that participants preferred their new sit-stand work style to their former seated-only habits.
According to Nirjhar Dutta, “The sit-stand workstations were highly popular with over 96% of the subjects enjoying their use.” (Update: The 96% figure turned out to be misleading, because at the 12 month follow-up in 2013, one subject who had initially passed on keeping the sit-stand workstation ultimately returned to it.)
Regarding efficacy, the second part of the study hypothesis, the data showed that the intervention (sit-stand workstations), “significantly increased activity during work hours.” In short, the study was a success and will take its place as an important informer of future, larger studies, like the “Stand-up Australia” and “Stand & Move” studies currently in progress.
Ergotron WorkFit™ sit-stand workstations were chosen as the intervention because they enable office workers to move from a sitting to standing posture (postural rotation) and back again effortlessly. Desks that feature hand-cranking adjustment were ruled out of consideration due to concern that the repeated cranking motion required could itself be a cause of repetitive stress and motor-operated, a lengthy process which likely prohibits mobility, rather than fosters it and burns natural energy resources instead of calories.
Why the distinction? There’s plenty of science indicating that increased activity is vital for a healthy work style, especially these days when technology has taken so many physical tasks out of our hands.
Testament to the importance and timeliness of Ergotron’s continued focus on sit-stand postural rotation research activities is the American Medical Association’s (AMA) recent announcement about adopting a policy on sitting in the workplace: AMA Adopts New Policies on Second Day of Voting at Annual Meeting.
According to AMA board member Patrice Harris, MD, “Prolonged sitting, particularly in work settings, can cause health problems, and encouraging work places to offer employees alternatives to sitting all day will help to create a healthier workforce.”
Overall, a sit-stand desk appears to be a promising tool to reduce sedentary time at work. Given the proportion of hours spent at work, sit-stand desks may contribute to decreasing sedentary time and improving the health of sedentary office workers.
“Utilizing a product that can improve one’s work experience without negatively impacting health or productivity is paramount,” says Schmitz. “Ergotron’s WorkFit line represents results-driven product design, as evidenced by one of the key findings of the research, that the intervention increased overall sense of well-being, decreased fatigue, and surprisingly, reduced appetite.”
Research like this is helping businesses define how to accomplish the AMA directives. We’ll share more information when the study is formally published. Until then, you will find more sit-stand research and news at Research.juststand.org.