Health inequity issue
More research is also necessary to understand the social determinants of cognitive decline, impairment, and dementia, he said. “Many of the studies we see today are based on self-report of what someone has done in the past, which is particularly problematic for individuals who are impaired or who give interviews with others, which can induce biases.”
Dr. Quinn suggests that PA guidelines may need to differentiate between occupational and leisure-time PA to better reflect current research findings.
Meanwhile, Dr. Skirbekk and Dr. Quinn both point to the toll that occupational PA takes on the brain and body in lower-income workers as an important health equity issue.
“Our national guidelines for PA include occupational activity,” said Dr. Quinn. “But it’s clear that a lot of people who are getting a lot of occupational PA, particularly socioeconomic and racial/ethnic minorities, are not benefiting from it.”
Dr. Holtermann, who has arguably done the most research to date on the PA paradox, noted in a recent editorial that the majority of workers with high occupational PA have a low socioeconomic position and therefore “improving our understanding of the underlying mechanisms behind the PA health paradox and identifying new intervention targets along those pathways will be an important step to reduce socioeconomic health inequalities across the globe.”
A version of this article first appeared on Medscape.com.