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Daily variation in physical activity during mechanical ventilation and stay in the intensive care unit

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  • Lene Lehmkuhl, University of Southern Denmark
  • ,
  • Hanne Tanghus Olsen, University of Southern Denmark
  • ,
  • Jan Christian Brønd, University of Southern Denmark
  • ,
  • Mette Juel Rothmann, University of Southern Denmark
  • ,
  • Pia Dreyer
  • Eva Jespersen, University of Southern Denmark

Background: Early mobilisation of mechanically ventilated patients during their stay at an intensive care unit (ICU) can improve physical recovery. Yet, an objective and specified description of physical activities while in the ICU is lacking. Therefore, our aim was to describe the objectively assessed type, quantity, and daily variation of physical activity among mechanically ventilated patients while in the ICU. Method: In an observational study in two mixed medical/surgical ICUs, we measured body posture in 39 patients on mechanical ventilation using a thigh- and chest-worn accelerometer while in the ICU. The accelerometer describes time spent lying, sitting, moving, in-bed cycling, standing and walking. Descriptive analysis of physical activity and daily variation was done using STATA. Results: We found that mechanically ventilated patients spend 20/24 h lying in bed, 3 h sitting and only 1 h standing, moving, walking or bicycling while in the ICU. Intervals of non-lying time appeared from 9.00 to 12.00 and again from 18.00 to 21.30, with peaks at the hours of 9.00 and 18.00. Conclusion: ICU patients on mechanical ventilation were primarily sedentary. Physical activity of mechanically ventilated patients seems to be related to nurse- and/or physiotherapy-initiated activities. There is a need to create an awareness of improving clinical routines, towards active mobilisation throughout the day, for this vulnerable patient population during their stay in the ICU.

Original languageEnglish
JournalActa Anaesthesiologica Scandinavica
Pages (from-to)462-469
Number of pages8
Publication statusPublished - Apr 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Acta Anaesthesiologica Scandinavica published by John Wiley & Sons Ltd on behalf of Acta Anaesthesiologica Scandinavica Foundation.

    Research areas

  • accelerometry, early mobilisation, ICU, intensive care, mechanical ventilation, physical activity

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