Not enough progress has been made to address physical inactivity worldwide, with adolescents and people living with disabilities (PLWD) among the least likely populations to have the support needed to meet the World Health Organization (WHO)’s physical activity guidelines. Global efforts to improve physical activity have stalled, with overall deaths caused by physical activity remaining at more than 5 million people per year. 
Physical inactivity is linked to an increased risk of non-communicable diseases (NCDs) such as heart disease, diabetes, and some cancers and costs at least $54 billion per year in direct health care costs of which $31 billion is paid by the public sector. The slow progress to improve physical activity worldwide has been exacerbated by the COVID-19 pandemic, with lockdowns likely associated with overall less physical activity worldwide. In addition, inactive people and those with NCDs are far more likely to be hospitalized or die if they develop COVID-19.
These findings come from a new three-paper Series published in The Lancet and launched ahead of the postponed 2020 Olympics in Tokyo, Japan. The authors call for immediate and urgent action to prioritize research and public health measures to improve physical activity worldwide, and ensure physical activity is built into every day lives.
More progress needed to improve physical activity among adolescents (paper 1)
Despite the growing number of young people diagnosed with non-communicable diseases (NCDs), including cardio-metabolic and mental health disorders, the authors note that research on adolescent physical activity is limited.
Global analysis shows that 80% of school-going adolescents are failing to meet the WHO recommended guidelines of 60 minutes of physical activity per day, with little progress made since 2012. In addition, 40% of adolescents never walk to school and 25% sit for more than 3 hours per day in addition to sitting at school and for homework.
The researchers also examined screen time in adolescents in 38 European countries and found that 60% of boys and 56% of girls spent two hours or more a day watching television. In addition, 51% of boys and 33% of girls spent two hours a day or more playing video games. However, little is known about how this impacts their cardio-metabolic and mental health.
Lead author of the paper, Dr Esther van Sluijs of the University of Cambridge, UK says, “We desperately need to explore both the short- and long-term consequences physical inactivity has on adolescents, and identify effective ways of promoting increases in physical activity, especially in light of the COVID-19 pandemic. Virtual schooling and social distancing have drastically reduced physical activity and increased use of screens, and the consequences of these changes could last a lifetime.” 
She adds, “Adolescents make up nearly one quarter of the world’s population, and by ensuring that they grow up in social and physical environments that are supportive of physical activity, we are helping to change their health right now, improve their future health, and positively influence the health of the next generation.” 
More must be done to empower the rights of people living with disabilities to participate in physical activity (paper 2)
Physical activity can provide a range of physical and mental health benefits for the 1.5 billion people worldwide living with a physical, mental, sensory, or intellectual disability. However, researchers found that PLWD are 16-62% less likely to meet physical activity guidelines and are at higher risk of serious health problems related to inactivity, such as cardiovascular disease, diabetes, and obesity.
The proportion of adults with disabilities living in high-income countries who meet physical activity guidelines range from 21% to 60%, in contrast to estimates ranging from 54% to 91% for adults without disabilities. The magnitude of disparities in physical activity for PLWD varies across disability types and is greatest for those with multiple impairments.
In addition, researchers found that any amount of physical activity, even if less than the WHO-recommended 150 minutes per week is beneficial to PLWD. Benefits included improving cardiovascular health, muscular strength, function skills, and mental health.
The study authors call for physical activity action plans worldwide to be adequately resourced, monitored, and implemented to truly advance the fundamental rights of PLWD to fully participate in physical activity.
“Interest in disability sport continues to grow and could be a key driver in promoting more empowerment, participation, and inclusion for PLWD. But we also need more research focused on PLWD as well as cohesive, targeted policies and guidelines to ensure the rights of PLWD are upheld and allow for full and effective participation in physical activity,” says Dr Kathleen Martin Ginis of the University of British Columbia, Canada, and lead author of the paper. 
The authors highlight that 80% of people with disabilities live in low-income and middle-income countries. However, in this review, virtually all available population data on physical activity in people living with a disability (PLWD) comes from high-income countries in North America and northwest Europe, indicating an urgent need for more research into physical activity for PLWD on a global scale.
Olympics must provide a legacy for health that lasts (paper 3)
Mass sporting events, including the Olympic Games, offer an opportunity to promote physical activity for global populations – including adolescents and PLWD. However, study authors found that Olympic Games had a minimal impact on physical activity in host cities and are a missed opportunity to improve health at the population level.
Researchers found there has been no measurable change in participation in sports either immediately before or after the Olympic Games [figure 1]. This was true even after the Olympic Games initiated the global impact project in 2001, which suggested that cities collect indicator data before and after the Olympic Games that specifically include legacy information on grassroots sports participation. These findings suggest that more planning and greater public health efforts are needed to generate a legacy of more physical activity following the Olympics or other mass sporting events.
“The Olympics and other mass sporting events are a missed opportunity to change health and physical activity at the population level not only in the host city or country but around the world. The Olympics provide a global stage to get people interested in and excited about physical activity. The challenge is how to translate that enthusiasm into sustained public health programs that are achievable and enjoyable for the general public,” says lead author of the paper, Prof Adrian Bauman of the University of Sydney, Australia. 
The authors call for pre-and post-event planning and partnerships between local and national governments and the International Olympic Committee and a thorough evaluation framework of physical activity host cities and countries to build a legacy that will lead to more physical activity and improve public health.
Physical activity: an essential human need beyond and independent of COVID-19.
Writing in a linked Editorial, Dr Pam Das, Senior Executive Editor of The Lancet says “The pandemic provides a powerful catalyst to advocate for physical activity…Exercise during lockdowns was considered an essential activity by many governments worldwide–physical activity was seen to be as essential as food, shelter, and seeking medical care. Early government campaigns during COVID-19 encouraged the public to go out and exercise. Why then can governments not commit to promoting physical activity as an essential human need beyond and independent of COVID-19?
“The much heightened public awareness about health, presents an opportunity to focus on the benefits of being healthy rather than managing disease. One goal should be to integrate physical activity into the way people lead their lives every day such that the physically active choices, which are often the healthier and more environmentally friendly ones, become the default. Using public transport, active travel, mandatory physical education in schools, and after-school activities are a few possibilities. The pandemic showed how easy it is to go for a 30 min daily walk. By advocating levels of physical activity that people can reasonably integrate into their lives, such as walking, expectations can be managed. Set the bar too high, and people will do nothing. But with reasonable targets, they might just get moving.”
Peer-reviewed/ Review/ People
NOTES TO EDITORS
This three-paper Series received no direct funding. A full list of authors and institutions are available in the papers.
The labels have been added to this press release as part of a project run by the Academy of Medical Sciences seeking to improve the communication of evidence. For more information, please see: http://www.
 Findings come from The Lancet Physical Activity Series 2016 https:/
 Quote direct from author and cannot be found in the text of the Article.
 World Health Organization COVID-19 Dashboard https:/
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