Reliability for a walk/run test to estimate aerobic capacity in a brain-injured population

Brain Inj. 1997 Jan;11(1):67-76. doi: 10.1080/026990597123827.


The purpose of this study was to establish the test-retest reliability of a modified 20 m shuttle walk/run test of aerobic capacity for adults with traumatic brain injuries (TBI). A convenience sample of 18 TBI patients (16 males, two females) between 19 and 58 years of age, was tested using an externally paced, progressive, maximal shuttle walk/run, on two separate occasions, within a 1-week period. The test involving walking or running a 20 m shuttle course while maintaining the pace determined by signals from a prerecorded audiotape. The initial slow walking pace (2.4 km/h) was increased gradually, each minute, until the patient could not continue. Statistical analyses revealed excellent reliability for the number of levels completed (ICC = 0.976), total walk/run test time (S) (ICC = 0.983) and maximal heart rate attained during the final level (bpm) (ICC = 0.964). Although small but significant increases were noted for the number of levels completed during the second test, the modified 20 m shuttle walk/run seems to be a reliable field test which may be useful for assessing the aerobic capacity of brain-injured adults.

MeSH terms

  • Adult
  • Anaerobic Threshold / physiology*
  • Brain Damage, Chronic / physiopathology*
  • Brain Damage, Chronic / rehabilitation
  • Brain Injuries / physiopathology*
  • Brain Injuries / rehabilitation
  • Exercise Test / statistics & numerical data*
  • Female
  • Follow-Up Studies
  • Heart Rate / physiology
  • Humans
  • Male
  • Middle Aged
  • Physical Fitness / physiology*
  • Reproducibility of Results
  • Running / physiology
  • Walking / physiology