Estudios originales

Published on 22 de octubre de 2025 | http://doi.org/10.5867/medwave.2025.09.3129

Exploring axial muscle performance with the supine bridging activity across critical illness recovery: A prospective observational study

Back to article
Comparison of physical functioning performance across critical illness time-points.
Physical functioning measurementsAwakening(n = 33)ICU discharge(n = 27)HDU discharge(n = 26)p-value
Supine bridging activity free knee flexion score, median [P25 to P75]2 [1 to 4]3 [1 to 5]5 [2 to 5]<0.001
  Knee flexion degrees, median [P25 to P75]105 [100 to 110]108 [100 to 114]110 [102 to 120]0.06
  Lifting time (free knee flexion), sec, median [P25 to P75]15 [9 to 28]18 [12 to 54]32 [22 to 69]0.0007
  Physical assistance provided (free knee flexion), n (%)18 (55%)11 (41%)2 (8%)<0.001
Supine bridging 90° knee flexion score, median [P25 to P75]2 [1 to 2]2 [1 to 5]2.5 [2 to 5]<0.001
  Lifting time (90° knee flexion), sec, median [P25 to P75]14 [7 to 26]20 [10 to 34]29 [13 to 58]<0.001
  Time at final position (90° knee flexion), sec, median [P25 to P75]0 [0 to 0]0 [0 to 18]3 [0 to 28]0.07
MRC Sum Score, median [P25 to P75]44 [31 to 51]49 [39 to 57]53 [45 to 59]<0.001
  Upper limbs score, median [P25 to P75]3.3 [2.6 to 4.2]4.3 [3.3 to 4.6]4.3 [3.6 to 4.8]<0.001
  Lower limbs score, median [P25 to P75]3.8 [2.6 to 4.3]4.3 [3.3 to 4.8]4.6 [3.6 to 5.0]<0.001
  Right side score, median [P25 to P75]3.5 [2.8 to 4.2]4.0 [3.2 to 4.8]4.3 [3.6 to 5.0]<0.001
  Left side score, median [P25 to P75]3.5 [2.5 to 4.3]4.2 [3.3 to 4.6]4.3 [3.6 to 4.8]<0.001
  Proximal score, median [P25 to P75]3.3 [2.0 to 3.8]3.8 [2.8 to 4.5]3.8 [3.0 to 4.8]<0.001
  Distal score, median [P25 to P75]4.0 [3.0 to 4.5]4.8 [4.0 to 5.0]4.8 [4.0 to 5.0]<0.001
FSS-ICU total score, median [P25 to P75]15 [7 to 20]27 [17 to 30]31 [24 to 34]<0.001
  Rolling score, median [P25 to P75]4 [2 to 5]6 [4 to 7]7 [6 to 7]<0.001
  Supine to sit transfer score, median [P25 to P75]2 [1 to 4]5 [3 to 6]6 [4 to 7]0.003
  Sitting at the edge of the bed score, median [P25 to P75]4 [3 to 6]7 [5 to 7]7 [7 to 7]0.5
  Sit to stand transfer score, median [P25 to P75]3 [0 to 4]6 [3 to 7]7 [5 to 7]0.02
  Walking score, median [P25 to P75]0 [0 to 3]3 [1 to 5]5 [1 to 7]0.003
  Able to walk, FSS-ICU walking score >2, n (%)12 (36%)16 (59%)18 (69%)0.03
Short Physical Performance Battery score, median [P25 to P75]11 [8 to 11]
  Balance score, median [P25 to P75]4 [3 to 4]
  Five times sit to stand score, median [P25 to P75]3 [2 to 4]
  Gait speed score, median [P25 to P75]4 [3 to 4]
  Five times sit to stand, sec, median [P25 to P75]12.2 [9.5 to 13.9]
  Walking speed, m/s, median [P25 to P75]1.0 [0.8 to 1.2]

FSS-ICU, Functional Status Score for the Intensive Care Unit; HDU, high dependency unit. ICU, intensive care unit. MRC, Medical Research Council. P25 to P75, percentile 25 to percentile 75.

Source: Prepared by the authors of this study.