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Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
Published on: June 20, 2025
Preoperative Physical Activity Level Measurement by Accelerometer for Predicting Post-Hepatectomy Complications: A
Hiroya Iida1, Hiromitsu Maehira2, Haruki Mori2
1Department of Surgery, Shiga University of Medical Science, Seta Tsukinowa-Cho, Otsu, Japan, hiroya@belle.shiga-med.ac.jp.
Lower preoperative physical activity levels predict higher risk of post-hepatectomy complications. Accelerometer measurements of physical activity can help predict these complications in patients undergoing hepatectomy.
Area of Science:
- Hepatobiliary Surgery
- Surgical Outcomes Research
- Wearable Technology in Medicine
Background:
- Accelerometers are increasingly used globally.
- Assessing preoperative physical activity is crucial for surgical outcomes.
- Predicting post-hepatectomy complications remains a clinical challenge.
Purpose of the Study:
- To investigate if preoperative physical activity levels, measured by accelerometers, can predict post-hepatectomy complications.
- To identify independent risk factors for complications after hepatectomy.
Main Methods:
- 185 patients undergoing hepatectomy had physical activity measured via accelerometer preoperatively and postoperatively.
- Comparison of patients with and without complications using statistical tests (chi-squared, Fisher's exact, t-test, Mann-Whitney U).
- Multivariate analysis to identify independent risk factors.
Main Results:
- Patients with complications had higher rates of anatomical resection and lower rates of laparoscopic hepatectomy.
- Average preoperative physical activity was significantly lower in patients with complications (84.5 kcal/day) compared to those without (150.6 kcal/day).
- Blood loss, operative time, and preoperative physical activity level were identified as independent risk factors.
Conclusions:
- Lower preoperative physical activity levels are associated with increased risk of post-hepatectomy complications.
- Accelerometer-based physical activity measurement is a potentially valuable tool for predicting these complications.
- Preoperative assessment of physical activity may guide patient management and risk stratification.
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