We are frequently warned about the health consequences of leading a sedentary lifestyle. But new research reveals that not all types of sitting are equally unhealthy. The study by researchers at Columbia University Vagelos College of Physicians and Surgeons found that sitting in front of a TV (known as ‘leisure-time sitting’) was associated with a greater risk of heart disease and death. In fact, study participants who watched four or more hours of TV a day were found to have a 50% greater risk of cardiovascular events and death compared to those who watched less than two hours a day. However, the study also found that participants who sat for long periods at work had the same level of risk as those who sat the least, suggesting the type of sitting really does have an impact. Furthermore, the study also revealed that even the most avid TV watchers could reverse the effects of their longer sedentary periods with moderate to rigorous exercise. For example, individuals who watched TV for four hours or more each day, and undertook 150 minutes or more exercise a week, had no increased risk of stroke, heart attack or death. Speaking about the findings of the study, Keith M. Diaz, Ph.D., assistant professor of behavioural medicine at Columbia University Vagelos College of Physicians and Surgeons, said: “It may be that most people tend to watch television for hours without moving, while most workers get up from their desk frequently. The combination of eating a large meal such as dinner and then sitting for hours could also be particularly harmful.”
People who have sedentary jobs could significantly boost their lifespans by taking short, regular movement breaks, a new study has found. It’s no secret that individuals who spend a lot of time sitting down are more likely to develop certain adverse health conditions, such as diabetes, obesity and cardiovascular diseases, as well as having increased risk of osteoporosis, depression, anxiety, colon cancer and high blood pressure. However, just a small amount of exercise, the study suggests, could lower the risk of early death. According to the research – the findings of which are published in the Annals of Internal Medicine – individuals who sat for less than 30 minutes at a time had the lowest risk of early death. For example, workers who had a movement break (involving some low-intensity exercise) every 30 minutes had a 17% lower risk of death than their counterparts who did not have any breaks. Moreover, individuals who broke up periods of sitting every 30 minutes with moderate- to high-intensity exercise lowered their risk of early death by 35%. Speaking about the findings of the research, Keith Diaz, an assistant professor of behavioural medicine at Columbia University Vagelos College of Physicians and Surgeons in New York City and study lead, said: “If you have a job or lifestyle that involves a lot of sitting, you can lower your risk of early death by moving more often, for as long as you want and as your ability allows — whether that means taking an hour-long high-intensity spin class or choosing lower-intensity activities, like walking.”
Workers who utilise standing desks are less tired and more engaged, new research suggests. For the research, led by a team from Loughborough University and experts from Leicester, NHS workers were given new height-adjustable desks and set goals for the amount of time they spent standing up. At the start of the year-long study, a group of 146 mainly sedentary NHS staff were split into two groups. One group were given height-adjustable workstations, also known as sit-stand desks, while the other group continued to use their traditional sitting desks. After a year, the research team assessed the amount of time workers spent sitting and working. They found that sitting time was lowered in the group with sit-stand desks by 82.39 minutes per day at 12 months. The same group also reported that they were less tired and more engaged in their work. According to the research published in the British Medical Journal (BMJ), the sit-stand group also reported improvements in musculoskeletal problems and a better quality of life. The sedentary lifestyles many office workers today lead are often cited as one of the primary reasons for the increasing number of obese individuals. Could something as simple as a sit-stand desk be the answer to combatting this epidemic and help us start leading healthier lives?
What’s the fittest country in the world? Would you have any idea if you were asked? Even hazard a guess? Hint: It’s a country in Africa. According to a recent World Health Organisation (WHO) report, Uganda is the world’s most physically active country. Published in the medical journal The Lancet, the study findings are from a compilation of surveys completed in 168 countries. Just 5.5% of Ugandans do not do enough physical activity. People living in Lesotho, Mozambique, Tanzania and Togo are also getting plenty of exercise, too. In comparison, people living in Kuwait (the least active nation) have far more sedentary lifestyles, with 67% of the population not active enough. The report highlights a distinct divide between the levels of physical activity in poorer countries vs. wealthier countries. People in poorer nations are more likely to walk to work and/or have jobs that see them being physically active throughout the day. Recommended exercise guidelines for 19- to 64-year-olds Here’s what the UK’s NHS recommends: At least 150 minutes of moderate-intensity aerobic activity (such as cycling or brisk walking) or 75 minutes of vigorous-intensity aerobic activity (such as running or a game of tennis) every week Strength exercises that work all the major muscles at least two days per week Long periods of sitting should be broken up with light activity Are you getting enough physical activity? Could a small lifestyle change enable you to? [Related reading: Open-plan offices could improve health, reduce stress]
The sedentary lifestyles many office-based workers lead are often cited as having a negative impact on their health, but a new study suggests the type of office someone works in could make a difference. That’s because the US study of 231 employees found that those who worked in open-plan offices were more active and less stressed than their peers in cubicles or private offices. In fact, open-plan office workers clocked up 20% more physical activity than those in cubicles and 32% more than those who had their own office. But why? The researchers say it could be to do with open-plan office workers being more likely to get up and have a conversation with one of their colleagues if they can see them across the room, instead of using a telephone or email. The extra physical activity was thought to be a factor linked to the lower stress levels, suggesting that open-plan offices afford more than just physical health benefits. The University of Arizona study, published in Occupational & Environmental Medicine, is the first of its kind to actually monitor activity and stress levels using technology, instead of relying on individuals to fill out surveys. Esther Sternberg, a professor at University of Arizona College of Medicine and study author, said: “We all know we should be increasing our activity but no matter how we try to encourage people to engage in healthy behaviour, it doesn't work for long. “So changing office design to encourage healthy behaviour is a passive way of getting people to be more active.”