Clinical trial NCT01317732: MOTIONPOD (TM) Validation and Calibration Study
Official title: Calibration and Validation of MOTIONPOD(TM) for Physical Activity Evaluation in Free-living Adults
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Energy Expenditure
Keywords: Energy expenditure, physical activity, accelerometer, magnetometer, monitoring
Lead sponsor: Hospices Civils de Lyon
Sponsor class: OTHER
First posted: 2011-03-17
Enrollment: 60
Sex: ALL
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: OTHER

Brief summary: In this study we propose 1) to develop a new multisensor monitoring system associating a tri-axial accelerometer and a magnetometer to measure physical activity in free-living adults, 2) to perform its calibration and assess its validity in a series of activity tasks in comparison with the measure of energy expenditure by indirect calorimetry as the criterion measure, and with existing physical activity monitors (cardiofrequencemetry and accelerometers used either alone or in combination). Briefly the subjects will perform a series of standardized activity tasks of different intensities and a 30-min free physical activity period while wearing 6 MOTIONPOD(TM) and different commercial activity monitors. Physical activity energy expenditure will be measured using a metabolic gas analyser.

Data of the 30 first subjects will be used to develop new algorithms to identify the different activity tasks and to estimate the related energy expenditures. Data of the following 30 subjects will be used to validate the MotionPOD(TM) against indirect calorimetry and existing physical activity monitors


Eligibility criteria: Inclusion Criteria:

* Normal-weight, overweight or obesity according to body mass index
* Low,moderate or high level of physical activity as estimated by questionnaire
* No angina and/or peripheral arterial disease symptoms or medical history

Exclusion Criteria:

* Subjects with cardiac implants
* Claustrophobic subjects
* Drug use that could affect energy expenditure
* Medical history or evolving disease which are a contra-indication for moderate physical exercise

Primary outcomes:
measure: Estimation by the MOTIONPODTM of the physical activity energy expenditure (PAEE) during a 30-min free activity period in comparison with the measure of PAEE by indirect calorimetry
timeFrame: 30 minutes
Secondary outcomes:
measure: Identification and classification of the tasks performed during a 30-min free activity period
timeFrame: 30 minutes
measure: Estimation by the MOTIONPODTM of the physical activity energy expenditure during each of the tasks performed during the experiment in comparison with 1) indirect calorimetry, 2) existing commercially activity monitors
timeFrame: During three hours
measure: Intensity classification by the MOTIONPODTM of the physical activity energy expenditure during each of the tasks performed during the experiment and during the 30-min free activity period.
timeFrame: During three hours
Other outcomes:
Locations:
city: Pierre Bénite
country: France
facility: Hospices Civils de Lyon Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA)
Study officials:
affiliation: Hospices Civils de Lyon Centre de Recherche en Nutrition Humaine Rhône-Alpes (CRNH-RA)
name: Chantal SIMON, Pr,PhD, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Bastian T, Maire A, Dugas J, Ataya A, Villars C, Gris F, Perrin E, Caritu Y, Doron M, Blanc S, Jallon P, Simon C. Automatic identification of physical activity types and sedentary behaviors from triaxial accelerometer: laboratory-based calibrations are not enough. J Appl Physiol (1985). 2015 Mar 15;118(6):716-22. doi: 10.1152/japplphysiol.01189.2013. Epub 2015 Jan 15.