The FINANCIAL — Kaiser Permanente study shows that exercise is associated with lower rates of hospitalization or death after infection regardless of race or chronic conditions.Kaiser Permanente members who were more physically active prior to being diagnosed with COVID-19 had a lower risk of severe outcomes, according to research published December 15, 2022, in the American Journal of Preventive Medicine.
The study of nearly 200,000 adults showed an association between physical activity and improved COVID-19 outcomes across major demographic groups regardless of whether patients had chronic medical conditions. Black, Hispanic, and Asian patients had a greater risk of adverse outcomes compared with white patients, in line with prior research. However, within each racial and ethnic group, more exercise was still associated with less severe COVID-19 outcomes.
“The main message is that every little bit of physical activity counts,” said the study’s lead author, Deborah Rohm Young, PhD, the director of the Division of Behavioral Research for the Kaiser Permanente Southern California Department of Research & Evaluation. “The more exercise the better, no matter a person’s race, ethnicity, age, sex, or chronic conditions.”
This research builds on earlier studies by closely examining the association between exercise and COVID-19 outcomes across demographic groups and chronic conditions according to Kaiser Permanente.
In this study, Young and her colleagues analyzed the electronic health records of 194,191 adult patients at Kaiser Permanente in Southern California who were diagnosed with COVID-19 between January 2020 and May 2021, prior to widespread COVID-19 vaccination.
All patients had reported their physical activity levels prior to infection in a routine measure known as the Exercise Vital Sign. Each patient fell into 1 of 5 categories ranging from always inactive — 10 minutes of exercise or less per week, to always active — 150 minutes of exercise per week.
Statistical analysis showed that the more physical activity a patient reported, the lower the risk of hospitalization or death within 90 days of COVID-19 diagnosis. This trend was consistent across all activity levels, with always-active patients facing the lowest risk.
More exercise was also linked to lower rates of hospitalization or death for patients with certain underlying chronic conditions — such as hypertension, cardiovascular disease, or obesity — that are typically associated with an increased risk of poor COVID-19 outcomes.
“Our findings drive home the need for physicians to emphasize to their patients that getting vaccinated and being more physically active are 2 of the most important things you can do to prevent severe outcomes of COVID-19,” said the study’s senior author, Robert E. Sallis, MD, a family and sports medicine physician at the Kaiser Permanente Fontana Medical Center.
Young said: “This is a powerful opportunity to develop stronger policies supporting physical activity as a pandemic-mitigation strategy. Our study provides new evidence to inform appropriate interventions across demographic groups.”
About Kaiser Permanente
Kaiser Permanente is committed to helping shape the future of health care. We are recognized as one of America’s leading health care providers and not-for-profit health plans. Founded in 1945, Kaiser Permanente has a mission to provide high-quality, affordable health care services and to improve the health of our members and the communities we serve. We currently serve 12.6 million members in 8 states and the District of Columbia. Care for members and patients is focused on their total health and guided by their personal Permanente Medical Group physicians, specialists, and team of caregivers. Our expert and caring medical teams are empowered and supported by industry-leading technology advances and tools for health promotion, disease prevention, state-of-the-art care delivery, and world-class chronic disease management. Kaiser Permanente is dedicated to care innovations, clinical research, health education, and the support of community health.
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