Chow, Jaclyn Jie Ling;
Fitzgerald, Claire;
Rand, Sarah;
(2023)
The 2 min step test: A reliable and valid measure of functional capacity in older adults post coronary revascularisation.
Physiotherapy Research International
, 28
(2)
, Article e1984. 10.1002/pri.1984.
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Abstract
PURPOSE: Exercise training is the central component in Cardiac Rehabilitation (CR). A baseline assessment of aerobic capacity is paramount for exercise prescription and safety. The Two-Minute Step Test (2MST) has been used to measure aerobic capacity in healthy older adults. However, the reliability and validity of the 2MST in older adults post-coronary revascularisation (CRV) is unknown. METHODS: A prospective observational study was conducted in a single CR centre. Two 2MSTs and one six-minute walk test (6MWT) were completed in a single session. The 2MST measurements were recorded by two raters for each individual. The six-minute walk distance (6MWD) and 2MST steps recorded by both raters were analysed to determine the relationship and agreement between measurements. RESULTS: Thirty one participants with a median (IQR) age of 66 (62,73) years old were included in the study post CRV. Strong positive correlations were found between steps achieved during the 2MSTs and the 6MWD (r = 0.87, 95% CI 0.82-0.91, p < 0.0001). Excellent inter-rater reliability was demonstrated between raters during the 2MSTs (ICC = 0.999-1.000, p = 0.000). Excellent relative test-retest reliability was demonstrated in both 2MSTs recorded by both raters (ICC = 0.927-0.934, p = 0.000). However, absolute test-retest reliability may have been limited by a learning effect between repeated 2MSTs. CONCLUSIONS: The results of this study indicate that the 2MST may be used as an alternative to the 6MWT as an outcome measure for aerobic capacity in older adults post-CRV. However, a practice trial is recommended at baseline to account for a learning effect.
| Type: | Article |
|---|---|
| Title: | The 2 min step test: A reliable and valid measure of functional capacity in older adults post coronary revascularisation |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/pri.1984 |
| Publisher version: | https://doi.org/10.1002/pri.1984 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | cardio thoracic surgery, exercise, physiotherapy |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Infection, Immunity and Inflammation Dept |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10167159 |
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