Researchers say fidgeting may help counteract the the negative health implications of sedentary behavior.
The study, led by researchers at Leeds University and University College London, both in the UK, builds on growing evidence suggesting that a sedentary lifestyle is bad for one's health, even if the individual is physically active outside work.
According to the American Heart Association, the number of sedentary jobs in the US has increased by 83% since 1950; in 1960, people working in physically active jobs represented 50% of the workforce, compared with less than 20% today.
Statistics show that even adults who meet recommended physical activity levels and who sleep for 8 hours per night may spend up to 15 hours a day sitting down.
The current study follows on from a larger project, the UK Women's Cohort Study, which focused initially on the eating patterns of 35,000 women.
Women who fidget fare better with sedentary lifestyle
In 1999-2002, the team invited 12,778 of the same women, ages 37-78, to answer questions about health behaviors, diet, smoking status, alcohol consumption, chronic disease, physical activity levels and fidgeting.
Participants were followed up for mortality over an average of 12 years, and the relative risk of mortality was estimated in the high (vs. low) and medium (vs. low) sitting time groups.
In women who sat for long periods but considered themselves "moderately or very fidgety," no increased risk or mortality was established as a result of the sitting. The risk only appeared to increase in the case of "very occasional fidgeters."
It is the first time that researchers have considered whether fidgeting might help to counter the effects of sitting for long periods.
While the exhortation to "Stop fidgeting!" conjures up images of teachers, parents and grandparents, co-lead author Prof. Janet Cade, from the School of Food Science and Nutrition at the University of Leeds, suggests new advice:
"While further research is needed, the findings raise questions about whether the negative associations with fidgeting, such as rudeness or lack of concentration, should persist if such simple movements are beneficial for our health."
In particular, the report recommends identifying more detailed and better validated measures of fidgeting in order to replicate these findings and identity mechanisms, particularly measures that distinguish fidgeting in a seated from standing posture.
Earlier this month, Medical News Today reported on research suggesting a link between sedentary behavior and nonalcoholic fatty liver disease.