I was pretty alarmed when I read the physical activity update from the World Health Organization (WHO) published in June 2024. The title reads ‘Global levels of physical inactivity in adults off track for 2030’. So why was I alarmed? Over the years, irrefutable research has shown that engaging in physical activity is the most effective medicine for reducing the risk of developing non-communicable diseases, managing these diseases, improving overall health, and, by extension, quality of life.
By non-communicable diseases, I mean conditions that cannot be spread through infection or through other people. They can be genetic, related to environment and lifestyle, or all of these. This includes cardiovascular diseases (heart diseases, arrhythmias, stroke), cancers (all types), respiratory diseases (asthma and emphysema, which you get from smoking, diabetes (types I and 2), and mental health (depression and psychiatric disorders). The typical lifestyle factors associated with these diseases include tobacco use, harmful alcohol use, unhealthy eating, poor air quality from pollution, and physical inactivity. We can change all of these, including physical inactivity.
Concerns about increasing levels of non-communicable diseases and the associated burden and cost to countries were raised in September 2011 at the first high-level meeting of the United Nations General Assembly on the prevention and control of non-communicable diseases. Increasing global levels of physical activity were included in the adopted roadmap for tackling the problem of non-communicable diseases. Minimal progress in advancing physical activity initiatives led to the WHO’s Global Action Plan on Physical Activity 2018–2030 publication. The main goal is a 15 per cent relative reduction in physical inactivity.
As of June 2024, most of the global community was off track for meeting these targets. For Caribbean islands like Jamaica, Dominica, Grenada, Antigua and Barbuda, and St Vincent and the Grenadines, 30 to 39.9 per cent of their population do not meet the WHO’s recommended physical activity levels for health benefits. This figure is higher for Trinidad and Tobago, Barbados, and St Kitts and Nevis, where between 40 and 49.9 per cent of the population do not meet the recommended guidelines. Globally, approximately 31 per cent of the adult population is not active enough. This represents 1.8 billion people who are missing out on the many benefits of physical activity. If we do not change the current prevalence of physical inactivity, it is expected that by 2030, there will be 500 million new cases of non-communicable diseases, including mental health problems. This will result in global health costs of approximately US$27 billion annually. You or your family members could be in this count if you do not ‘move.’
The known health benefits of physical activity include a reduction in the risk of developing most non-communicable diseases. Research has shown as much as a 20 per cent reduction in the risk of developing colon and breast cancer and a 35 per cent reduction in the risk of developing heart disease. Engaging in routine physical activity also leads to improvement in psychological well-being, musculoskeletal health, joint and back pain, and sleep.
The non-health benefits are also numerous. If we can save US$27 billion per year by reducing the prevalence of non-communicable diseases through increased physical activity, it would mean having more money to invest in other areas of sustainable development such as education, physical activity, and sport. A more physically active workforce means employees will likely be happier and healthier, resulting in fewer sick days, increased productivity, and economic gains. Engaging in physical activity through sports participation builds teamwork, leadership skills, community connections, friendships, and resilience. Sports bridges barriers across age, race, gender, and abilities and can be, and have been, leveraged for peace and development. Engaging in physical activity through physical education improves physical literacy, increases opportunities for lifelong engagement in physical activity, improves skill development, and improves cognitive health and self-esteem.
The lowest recommended amount of physical activity for health benefits is 150 minutes weekly. This translates to approximately 20 minutes of physical activity per day. However, more is better, and one should try increasing their activity levels to 300 minutes per week or 40 to 45 minutes daily. For adults, strength training at least two days per week is vital to reduce age-related decline in strength. For older adults, multicomponent activities involving strength and balance should be done at least three days per week due to age-related decreases in balance, which can lead to falls. This can be activities like yoga, Tai Chi, or dancing. You do not have to go to a gym. Walk whenever you can, take the stairs instead of elevators, and play a sport.
The current report on global levels of physical inactivity can be accessed at https://www.who.int/publications/i/item/9789240096905.
Dr Sharmella Roopchand-Martin is a Senior Lecturer in the Faculty of Sport at UWI