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Original article

Vol. 150 No. 2930 (2020)

A significant increase in exercise test performance with virtual group motivation: a randomised open-label controlled trial

DOI
https://doi.org/10.4414/smw.2020.20287
Cite this as:
Swiss Med Wkly. 2020;150:w20287
Published
15.07.2020

Abstract

AIMS

Exercise stress testing is frequently used for the assessment of coronary artery disease. As the validity of the test result is highly dependent on the patient’s cooperation and motivation, we hypothesised that virtual group motivation would result in a higher exercise capacity and may increase the test’s validity.

METHODS

108 patients at a Swiss teaching hospital with an indication for exercise testing were included in a controlled, open-label trial and randomised 1:1 to treadmill exercise testing whilst either watching a video of a walking group (video group, n = 43), or watching a static image of flowers (image group, n = 43). The video showed a group of five amateur runners, giving the patients the impression of running within the group. As primary outcomes, the performance achieved and the perceived level of comfort during the test were analysed.

RESULTS

The video group achieved significantly higher percentages of their age-predicted METs (149 ± 32% vs 135 ± 29%, p = 0.041) and longer exercise durations (11:12 ± 2:54 min vs 08:54 ± 02:39 min, p <0.001). Levels of comfort (8.4 ± 1.4 vs 7.5 ± 1.7 analogue scale, p = 0.011) and closeness to their physical limits (8.9 ± 0.8 vs 8.1 ± 1.5, p = 0.005) were rated significantly higher by patients in the video group.

CONCLUSIONS

Patients watching a video of a running group achieved significantly higher maximum exercise levels and longer test durations. This may have implications for the test’s validity. Furthermore, the virtual setting enhanced patient comfort. (This trial was formally registered at clinicaltrials.gov: trial ID NCT03704493.)

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