Metabolic Activity- and Lifestyle Monitor

How does the armband work?

The SenseWear® armband is a multi-sensor measuring device worn on the triceps of the right upper arm. The armband continuously records a stream of physiological signals serving to quantify the physical activity, energy expenditure and sleep pattern of an individual in free living conditions for up to two weeks (1, 2).

Physiological signals from integrated sensors (skin temperature, near body temperature, heat flux, galvanic skin resistance and two accelerometers) are used, in combination with free-living activity recognition patterns, to calculate energy consumption based on proprietary algorithms of artificial intelligence. These algorithms have been trained by thousands of controlled experiments in which information from the sensors is compared to data collected with reference methods, enhanced by Data Mining. Validations of rest, sleep and activity related energy expenditure against doubly labeled water (3) and indirect calorimetry (4, 5) indicate a high degree of correlation and accuracy.

References:

  1. M. Malavolti, A. Pietrobelli, M. Dugoni, M. Poli, P. De Cristofaroand N. C. Battistini - A new device for measuring daily total energy expenditure (TEE) in free living individuals. International Journal of Body Composition Research, 2005, 3: 63
  2. S.A. Patel, W.A. Slivka, F.C. Sciurba. - Validation of a Wearable Body Monitoring Device in COPD. Am J Respir Crit Care Med, 2004, 30: A771
  3. D. Mignault, M. St.-Onge, A. D. Karelis, D. B. Allison, R. Rabasa-Lhoret. - Evaluation of the Portable HealthWear Armband, a device to measure total daily energy expenditure in free-living type 2 diabetic individuals. Diabetes Care, 2005, 28: 225-227
  4. M. St-Onge, D. Mignault, D. B. Allison, R. Rabasa-Lhoret - Evaluation of a portable device to measure daily energy expenditure in free-living adults. Am J Clin Nutr, 2007;85:742–9
  5. J. M. Jakicic, M. Marcus, K.I. Gallagher, C. Randall, E. Thomas, F. L. Goss, R. J. Robertson  - Evaluation of the SenseWearPro Armband™ to Assess Energy Expenditure during Exercise. Med SciSports Exerc. 2004, 36: 897-904
  6. P. De Cristofaro, A. Pietrobelli, B. Dragani, G. Malatesta, S. Arzeni, M. Luciani, M. Malavolti, N.C. Battistini - Total Energy Expenditure in Morbidly Obese Subjects: A New Device Validation. Obesity Res, 2005, 13:A175
  7. T. Troosters, D. Langer, D. Saey, R. Gosselink, M. Decramer - Assessment of Physical Activity using a Multisensor Armband. ERS Congress 2006 Munich, Poster 5 Sept 2006

Which sensors are integrated into the armband and which parameters are measured?

How are results documented?

 


After transfer of the stored armband data via USB cable or the Wireless Communicator hub to the PC, results are displayed on the screen:


A drag and drop feature in the time window allows zooming to any time interval, with a one minute resolution. Displayed results reflect the chosen time. With a couple of clicks, resting energy expenditure or resting metabolic rate RMR, sleep, and total energy expenditure can be displayed. After setting an activity threshold, the active energy expenditure and the physical activity duration PAD is given. All these parameters seem to be indispensable in weight management, trainings and activity programs.

The report contains all numeric information and adds column graphs simplifying the analysis. At a single glance, the activity, sleep, and lifestyle pattern of the test individual can be viewed.

What is included in the armband shipment?

  • The armband is shipped in a well designed carton together with all accessories
  • The shipment comprises:
  • SenseWear® PRO3 Armband Monitor
  • CD with multilingual SenseWear® (Standard) Software (D, GB, E, I, F) for MS Windows including a 30 day test version of the Professional Software
  • Multilingual User’s Manual on CD (D, GB, E, I, F)
  • Two reusable elastic straps (sizes M, L)
  • Two AAA batteries
  • One USB cable

What are the differences between the SenseWear® Professional Program and the regular standard SenseWear® Software?

Additionally to the Standard SenseWear® Software the SenseWear® Professional Program offers

  • Four user adjustable categories of energy expenditure
  • Display of health indices (weight, blood glucose, blood pressure)
  • Graph of all primary and secondary parameters at user’s choice
  • Traces for activity categories, activity, rest, sleep

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