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Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
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Physical activity and mortality in older patients with a pacemaker
Toshihiko Goto1, Kento Mori1, Kosuke Nakasuka1
1Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Geriatrics & Gerontology International
|December 11, 2019
Summary
Low daily physical activity in older pacemaker patients predicts a higher risk of death. Maintaining an activity rate of at least 3.4% (50 minutes/day) is associated with increased survival in this population.
Area of Science:
- Geriatric Medicine
- Cardiology
- Biostatistics
Background:
- Increasing lifespans lead to a growing number of elderly patients requiring pacemakers.
- Data on all-cause mortality in older pacemaker recipients are limited.
- Physical activity is known to reduce all-cause mortality.
Purpose of the Study:
- To investigate if daily physical activity time, measured by pacemaker-derived activity rate, can predict all-cause mortality in patients aged 75 years and older.
- To assess the predictive value of pacemaker activity rate for mortality in elderly individuals.
Main Methods:
- Retrospective study of 107 consecutive patients (≥75 years) newly implanted with pacemakers.
- Collected baseline characteristics, echocardiographic indices, laboratory data, and pacemaker parameters.
- Follow-up for all-cause mortality over a mean of 3.0 years.
Main Results:
- The activity rate demonstrated strong predictive ability for all-cause mortality (AUC=0.82, P<0.001).
- An activity rate of ≥3.4% (50 min/day) was associated with significantly higher survival rates (log-rank, P<0.001).
- Low activity rates were identified as a significant predictor of all-cause mortality (HR=15.0, P<0.001).
Conclusions:
- Low pacemaker activity rates are a significant predictor of all-cause mortality in elderly patients.
- Encouraging physical activity in older pacemaker recipients may improve survival outcomes.
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