Portable Multisensor Activity Monitor(SenseWear) Lacks Accuracy in Energy Expenditure Measurement during Treadmill Walking Following Stroke
- *Corresponding Author:
- Suzanne Kuys
Griffith Health Institute
Griffith University, Gold Coast
The Prince Charles Hospital
Rode Rd, Chermside QLD 4032, Australia
Email: [email protected]
Received date: February 28, 2014; Accepted date: March 25, 2014; Published date: April 30, 2014
Citation: Kuys SS, Clark C, Morris NR (2014) Portable Multisensor Activity Monitor (SenseWear) Lacks Accuracy in Energy Expenditure Measurement during Treadmill Walking Following Stroke. Int J Neurorehabilitation 1:101. doi:10.4172/2376-0281.1000101
Copyright: © 2014 Kuys SS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author andsource are credited.
Introduction: This research aimed to assess the accuracy of a portable multi-sensor device (SenseWear armband) measuring energy expenditure in people with stroke compared with indirect calorimetry at rest and during treadmill walking. Secondary aims were to determine if there was a difference depending on which arm the device was placed and to determine the accuracy of the armband step count.
Materials and Methods: Ten stroke survivors (mean age 64.3 SD 7.7 years; 70% male) wore an armband on each arm and metabolic facemask. Energy expenditure was measured at rest and during two 10-minute bouts of treadmill walking at different speeds separated with a seated rest.
Results: The armband was accurate for measuring energy expenditure at rest (Intraclass correlations (ICC) > 0.869), with poor to fair accuracy during treadmill walking (ICC>0.306). The non-hemiplegic arm provided more accurate energy expenditure measurement (ICC>0.409), underestimating with 10%-15% absolute percentage error. SenseWear armband was inaccurate for measuring step count (absolute percentage error approximately 30%).
Conclusion: These results suggest that SenseWear armband lacks accuracy for measuring energy expenditure during treadmill walking in people with stroke; with the non-hemiplegic arm the most accurate. The armband is inaccurate measuring step count. Revision of algorithms specific for people following stroke may improve accuracy.