AI Article Synopsis

  • This study explores how moderate- and vigorous-intensity physical activity (MVPA) and sedentary behavior (SB) relate to mortality in heart failure (HF) patients using data from a national health survey.
  • Researchers analyzed responses from 711 adults with HF, categorizing their activity levels and sedentary time to assess their impact on survival rates.
  • Results indicated that lower MVPA and higher SB increased the risk of death, with the protective benefits of MVPA being significantly higher for those who sat less than 8 hours a day, underlining the importance of staying active for heart failure patients.

Article Abstract

Background: Limited data are available examining the effects of both moderate- and vigorous-intensity physical activity (MVPA) and sedentary behavior (SB) on longevity among patients with heart failure (HF). This study examined the associations of MVPA and SB with all-cause mortality in HF patients using a nationally representative survey data.

Methods: National Health and Nutrition Examination Survey data (2007-2014) were used. 711 adults with self-reported congestive HF, linked to 2015 mortality data were analyzed. Self-reported MVPA and SB minutes were used to create the three MVPA [No-MVPA, insufficient (I-MVPA; <150 min/wk), and sufficient (S-MVPA; ≥150 min/wk)] and two SB (<8 and ≥8 hrs/d) groups. Cox proportional hazard models were constructed to test the associations of MVPA and SB with all-cause mortality.

Results: 119 deaths occurred over an average of 4.9 years of follow-up. Lower MVPA and higher SB were independently associated with poor survival (P < .001). Joint and stratified analyses showed that the protective effect of MVPA was most pronounced among patients with SB<8 hrs/d. There was no difference in the mortality risk by SB levels within I-MVPA and S-MVPA groups; however, in the No-MVPA group, those with SB≥8 hrs/d had a greater risk of mortality compared to those with <8 hrs/d (Hazard ratio = 1.60).

Conclusion: In this HF cohort, MVPA and SB were independently and jointly associated with all-cause mortality. The beneficial effect of MVPA is attenuated by excessive SB; however, engaging in some amount of MVPA may provide a protective effect and attenuates the detrimental effects associated with excessive SB.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9286289PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0271238PLOS

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