Abstract
Objective
To analyze the acute hemodynamic effects of adding virtual reality–based therapy (VRBT)
using exergames for patients undergoing cardiac rehabilitation (CR).
Design
Crossover trial.
Setting
Outpatient rehabilitation center.
Participants
Patients (N=27) with a diagnosis of cardiovascular disease or cardiovascular risk
factors. Mean age (years) ± SD was 63.4±12.7 and mean body mass index (kg/m2) ± SD
was 29.0±4.0.
Interventions
Patients performed 1 VRBT session and 1 CR session on 2 nonconsecutive days. Each
session comprised an initial rest, warm-up, conditioning, and recovery. During warm-up,
in the VRBT session, games were performed with sensors to reproduce the movements
of avatars and, in the CR session, patients were required to reproduce the movements
of the physiotherapists. In the conditioning phase for VRBT, games were also played
with motion sensors, dumbbells, and shin guards. The CR session consisted of exercises
performed on a treadmill. The intensity of training was prescribed by heart rate reserve
(HRR; 40%-70%).
Main Outcome Measures
The primary outcomes were heart rate, blood pressure, respiratory rate (RR), rating
of perceived exertion (RPE), and peripheral oxygen saturation, evaluated before, during,
and after the VRBT or CR session on 2 nonconsecutive days. The secondary outcome was
to evaluate whether the patients achieved the prescribed HRR and the percentage of
time they maintained this level during the VRBT session.
Results
VRBT produces a physiological similar pattern of acute hemodynamic effects in CR.
However, there was greater magnitude of heart rate, RR, and RPE (P<.01) during the
execution of VRBT and until 5 minutes of recovery, observed at the moments of rest,
and 1, 3, and 5 minutes of recovery.
Conclusions
Although the VRBT session produces similar physiological acute hemodynamic effects
in CR, greater magnitudes of heart rate, RR, and RPE were observed during its execution
and up to 5 minutes after the session.
Keywords
List of abbreviations:
CR (cardiac rehabilitation), DBP (diastolic blood pressure), HRR (heart rate reserve), RPE (rating of perceived exertion), RR (respiratory rate), SBP (systolic blood pressure), SpO2 (peripheral oxygen saturation), Vo2peak (peak oxygen consumption), VRBT (virtual reality–based therapy)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: January 08, 2020
Footnotes
Supported by the Coordination of Improvement of Higher Education Personnel - Brazil (financing code 001), the Foundation for Research Support of the State of São Paulo (grant no. 2017/12254-8), and the Brazilian National Council for Scientific and Technological Development (protocol no. 150737/2017-3).
Clinical Trial Registration No.: NCT03377582.
Disclosures: none.
Identification
Copyright
© 2020 by the American Congress of Rehabilitation Medicine
