Purpose
Establish
the validity of a triaxial accelerometer (Dynaport®) for evaluating the
energy expenditure of patients with stroke sequelae at a rehabilitation
hospital
Methods
This
is a cross-sectional study with 24 stroke inpatients of a
rehabilitation hospital. The participants were assessed on energy
expenditure by an ergospirometer system and the triaxial accelerometer
simultaneously during a walk test. The data collected by both devices
were compared by intraclass correlation coefficient (ICC) and
Bland-Altman limits of agreement
Results
An
almost perfect agreement (ICC = 0,94) in the energy expenditure
measured by the accelerometer compared to the results of the
ergospirometer system was found during the exercise test. The
Bland-Altman analysis has shown suitable limits of agreement. Post hoc
analyses with the maximum volume of oxygen and the total energy
expenditure measured by the ergospirometer system evidenced significant
correlation with the energy expenditure measurements by the
accelerometer
Conclusion
Our
results evidence that the triaxial accelerometer Dynaport® and its
built-in software are valid for estimating the energy expenditure of
stroke sequelae during a walk exercise.(So what?)
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