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The Health Risks of Prolonged Occupational Sitting and the Benefits of Physical Activity

The 2020 World Health Organisation guidelines on physical activity highlighted the importance of reducing sedentary behaviour due to its negative health effects. However, the specific impact of prolonged sitting at work, particularly in the context of varying levels of physical activity, has not been fully explored. A recent prospective cohort study in Taiwan, published earlier this year in JAMA Network Open sheds light on this issue, focusing on the health outcomes associated with occupational sitting among apparently healthy individuals. The study followed 481,688 participants over an average period of 12.85 years, collecting data on their occupational sitting habits, leisure-time physical activity (LTPA), lifestyle choices, and metabolic health. The findings revealed that individuals who predominantly sat at work had a 16% higher risk of all-cause mortality, and a 34% higher risk of cardiovascular disease mortality compared to those who predominantly did not sit at work. These increased risks persisted even after accounting for factors such as age, sex, education, smoking, drinking, and body mass index. To counteract the negative effects of prolonged sitting, the study suggests that individuals who sit most of the day at work should aim to add 15 to 30 minutes of physical activity per day. This additional…

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Sedentary Behaviour and Sleep Quality

High-quality sleep is an important factor in sustaining health and improving well-being. Previous evidence has demonstrated the positive associations between increased physical activity and reduced sedentary behaviour (SB) with sleep quality. In a recent study published in Scientific Reports in January 2023, researchers in Japan aimed to explore the relationship between sedentary behaviour (SB), light-intensity physical activity (LPA), moderate-to-vigorous physical activity (MVPA) and sleep quality in middle-aged adults. The study used an isotemporal substitution approach to examine the relationship between physical activity and sleep quality. This approach involves replacing one type of activity with another while keeping the total amount of time spent active the same. The participants were middle-aged adults who wore accelerometers to objectively measure their daily time spent in sedentary behaviour, light physical activity (LPA), and MVPA. They also completed self-reported questionnaires to assess their rest by sleep and sleep quality. The results of the study showed that each 60-minute unit of sedentary time or LPA replaced with MVPA was associated with improved rest by sleep in women. However, there were no significant associations found between physical activity levels and sleep measures in men across all three models. The study highlights the importance of considering substitutional relationships…

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Modelling the potential health and economic benefits of reducing population sitting time in Australia

Strong evidence indicates that excessive time spent sitting (sedentary behaviour) is detrimentally associated with multiple chronic diseases. A paper titled “Modelling the potential health and economic benefits of reducing population sitting time in Australia” has recently been published in the International Journal of Behavioral Nutrition and Physical Activity and describes the development of the first Australian sedentary behaviour model that can be used to predict the long term consequences of interventions targeted at reducing sedentary behaviour through reductions in sitting time. The authors report that sedentary behaviour is prevalent among adults in Australia and has increased during the COVID-19 pandemic. Therefore, estimating the potential health benefits and healthcare cost saving associated with reductions in population sitting time, could be useful for the development of public health initiatives. A sedentary behaviour model was developed and incorporated into an existing proportional, multi-state, life table Markov model (ACE-Obesity Policy model). This model simulates the 2019 Australian population (age 18 years and above) and estimates the incidence, prevalence and mortality of five diseases associated with sedentary behaviour (type 2 diabetes, stroke, endometrial, breast and colorectal cancer). According to the model, if all Australian adults sat no more than 4 h per day, this would result in health…

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Champion Insights – Barriers to engaging management and staff in BeUpstanding

Implementing a well-being program in a workplace can come with some challenges, one of which can be engaging staff and/or management in the program. As part of the national trial of BeUpstanding we are interested in learning what some of the barriers were in relation to engaging staff and management in the BeUpstanding program, a workplace champion led program aimed at supporting staff to sit less and move more in the workplace. As part of the program completion survey that BeUpstanding Champions complete upon finishing the 8-week implementation phase of the BeUpstanding program, they are asked the following question: “Tell us about any barriers to engaging management or staff in the BeUpstanding program that you have noticed”. The changes associated with working from home due to COVID-19, namely the lack of visibility and the lack of equipment, were identified as common barriers. It’s hard to get everyone on board.  Working from home made it more challenging – less visibility. Some staff were working from home during the program where they didn’t have sit to stand desks and fellow workers to encourage more movement. A lack of time/being too busy, and only having support from some levels of management, were also…

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Economics of Sedentary Behaviour

It is well established that sedentary behaviour is an established risk factor for several diseases; however, its economic impacts are less understood. Published in Preventative Medicine last week, a paper titled “Economics of sedentary behaviour: A systematic review of cost of illness, cost-effectiveness, and return on investment studies” is the first review that has investigated the broader economic credentials of Sedentary Behaviour. The authors, Nguyen P et al., reviewed the literature on the economic costs associated with excessive sedentary behaviour and the cost-effectiveness of interventions targeting sedentary time. The review identified nine articles. Three reported healthcare costs associated with excessive sedentary time, and found that healthcare costs associated with excessive sedentary time as reported in cost of illness studies were substantial. However, none explored non-health sector costs. In the six articles which were economic evaluations of interventions targeting sedentary behaviour, they adopted a societal perspective. However, costs included differed depending on the intervention context. The authors concluded that excessive sedentary behaviour is likely associated with excess healthcare costs and of the limited interventions targeting sedentary behaviour reduction that have been economically evaluated, most were likely to be cost-effective. The most promising interventions from a cost-effectiveness perspective were those that included…

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BeUpstanding Champion Perspectives: What Makes a Good Champion

In a previous blog article titled ‘What makes a good champion’ we wrote about some of the qualities that make an effective workplace champion. Previous research suggests that those who have a genuine passion for health and wellbeing and are enthusiastic about the opportunity to inspire others towards a healthier lifestyle (Healy et al., 2018) are the most effective champions. They must also be committed to making long-term positive health changes in their workplace and display a good relationship with their peers. More general personality traits like outgoingness and motivation have been positively linked to champion performance (Howell, 2005). Highly motivated individuals are also more likely to engage with the content and be prepared to persist when faced with challenges. As part of the survey champions complete after finishing the 8-week BeUpstanding Program, they are asked what qualities or characteristics they believe make an effective champion in the BeUpstanding program, as well as what characteristics and qualities they possess that they feel helped them be a champion for their team. Common attributes identified by champions that they believe make a good BeUpstanding champion, based on their experiences, included motivated, approachable, committed, and positive. These qualities and others can be seen…

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