Personal activity intelligence and mortality : Data from the Aerobics Center Longitudinal Study
Nauman, J., Sui, X., Lavie, C. J., Wen, C. P., Laukkanen, J. A., Blair, S. N., Dunn, P., Arena, R., & Wisløff, U. (2021). Personal activity intelligence and mortality : Data from the Aerobics Center Longitudinal Study. Progress in Cardiovascular Diseases, 64, 121-126. https://doi.org/10.1016/j.pcad.2020.05.005
Published inProgress in Cardiovascular Diseases
© 2020 The Author(s). Published by Elsevier Inc.
Importance Personal activity intelligence (PAI) is a novel activity metric that can be integrated into self-assessment heart rate devices, and translates heart rate variations during exercise into a weekly score. Previous studies relating to PAI have been conducted in the same populations from Norway where the PAI metric has been derived, limiting generalizability of the results. Objective To test whether PAI is associated with total and cause-specific mortality in a large cohort from the United States. Design Aerobics Center Longitudinal Study (ACLS) – a prospective cohort between January 1974 and December 2002 with a mean follow-up of 14.5 years. Setting Population-based. Participants 56,175 relatively healthy participants (26.5% women) who underwent extensive preventive medical examinations at Cooper Clinic (Dallas, TX). Exposure Personal activity intelligence (PAI) score per week was estimated and divided into 4 groups (PAI scores of 0, ≤50, 51–99, and ≥100). Main outcomes and measures Total and cause-specific mortality. Results During a median follow-up time of 14.9 (interquartile range, 6.7–21.4) years, there were 3434 total deaths including 1258 cardiovascular (CVD) deaths. Compared with the inactive (0 PAI) group, participants with a baseline weekly ≥100 PAI had lower risk of mortality: adjusted hazard ratio (AHR), 0.79: 95% CI, 0.71–0.87 for all-cause mortality, and AHR, 0.72: 95% CI, 0.60–0.87 for CVD mortality among men; AHR, 0.85: 95% CI, 0.64–1.12 for all-cause mortality, and AHR, 0.48: 95% CI, 0.26–0.91 for CVD mortality among women. For deaths from ischemic heart disease (IHD), PAI score ≥100 was associated with lower risk in both men and women (AHR, 0.70: 95% CI, 0.55–0.88). Obtaining ≥100 weekly PAI was also associated with significantly lower risk of CVD mortality in pre-specified age groups, and in participants with known CVD risk factors. Participants with ≥100 weekly PAI gained 4.2 (95% CI, 3.5–4.6) years of life when compared with those who were inactive at baseline. Conclusions and relevance PAI is associated with long-term all-cause, CVD, and IHD, mortality. Clinicians and the general population can incorporate PAI recommendations and thresholds in their physical activity prescriptions and weekly physical activity assessments, respectively, to maximize health outcomes. Key points Question: What is the association between personal activity intelligence (PAI), a novel activity metric, and mortality in a large cohort from the United States? Findings: In this prospective study of 56,175 healthy participants at baseline, followed-up for a mean of 14.5 years, ≥100 PAI score/week was associated with significant 21% lower risk of all-cause and 30% lower risk of CVD mortality in comparison with inactive people. Participants with ≥100 PAI/week lived on average 4.2 years longer compared with inactive. Meaning: PAI is associated with long-term all-cause and CVD mortality. Clinicians and general population may incorporate PAI recommendations into weekly physical activity assessments to maximize CVD prevention. ...
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Additional information about fundingThe K.G. Jebsen Foundation, the Norwegian Research Council, the Liaison Committee between the Central Norway Regional Health Authority and the Norwegian University of Science and Technology, Trondheim, Norway (JN & UW).
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