Quantification of energy expenditure during daily living activities after stroke by multi-sensor

ABSTRACT

Objective: To explore the validity of energy expenditure estimates using the SenseWear Armband during a sequence of four daily living activities in patients post-stroke.

Method: Patients with stroke who were able to walk during 6 min without human assistance were asked to wear the SenseWear Armband on the non-paretic arm while performing transfers, a manual task, walking, and walking up and down stairs. The energy expenditure estimated using the SenseWear Armband was compared to the energy expenditure calculated from oxygen consumption, measured by a portable indirect calorimeter (Metamax 3B). The mean of energy expenditure was pooled for each task. Accuracy was explored by mean bias (MB) of Bland–Altman analysis and root mean square error (RMSE), agreement by 95% of limits of agreement (95%LoA) and coefficient of correlation (r).

Results: Thirty-eight participants (65.7 ± 13.5 years) were included. The SenseWear Armband globally underestimated energy expenditure, MB = 9.77 kcal for the whole sequence. RMSE were large, accounting for 15% to 41% of the measured energy expenditure. Agreement was low with r < 0.70 and 95%LoA from 42% to 93% of the measured energy expenditure.

Conclusions: This study reported a global underestimation and a low level of agreement of the energy expenditure estimated by SenseWear Armband in four daily living activities in patients after stroke.

Abbreviations: EE: Energy Expenditure; NIHSS: National Institute of Health Stroke Score

KEYWORDS:

• Validity
• multi-sensor
• accelerometry
• stroke
• energy expenditure

Acknowledgments

We thank all of our patients for volunteering in this research, Autonom’Lab and European Network of Living Labs (ENoLL), the region of Limousin and the Fondation Paul Bennetot, Foundation of the Matmut Group, under the aegis of the Fondation de l’Avenir, Paris, France.

Authors’ contributions

MC, JCD, JYS, JL and SM designed the study, MC, JL participated in subject recruitment and data collection. MC, JCD, SM, JL, RM, NV and JYS interpreted the results. All authors revised the manuscript and approved the final version.

Availability of data and materials

The datasets used and/or analyzed in the current study are available on reasonable request from the corresponding author.

Conflict of interest

The authors declare no conflict of interest.

Consent for publication

The publication of individual person’s data in any form have been submitted to consent for publication.

Ethics approval and consent to participate

Written permission has been obtained from all persons named in the acknowledgments and patient consent forms have been collected. The study protocol was approved by an Ethics Committee for non-interventional Research, registration number: 2015-01-13-57.

Supplementary material

Supplemental data for this article can be accessed here.

Additional information

Funding

This research was supported by Autonom’Lab and European Network of Living Labs (ENoLL), the region of Limousin and the Fondation Paul Bennetot, Foundation of the Matmut Group, under the aegis of the Fondation de l’Avenir, Paris, France.