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Completed

NCT Number: NCT01805219

Global Positioning Satellite and Accelerometry to Assess Human Locomotion (ACTI GPS)

The aim of the study is to validate the association of the GPS and accelerometer tools in order to assess the humain locomotion during exercises.

The hypotheses are:

1. GPS and accelerometer together can assess the human locomotion 2. GPS and accelerometer together can assess the energy expenditure during exercises

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Key information

Conditions

Healthy Volunteers

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University Hospital

Angers, 49933, France

About this study

The assessment of the physical activity (PA) and the energy expenditure (EE) is very important to estimate the morbi-mortality. However, each of these tools has its advantages and disadvantages but none of them provides a measure of all components dimensions that characterize the associated PA and EE. The current scientific prospects for measurement of PA tend to associate several measuring devices. To date, these perspectives are facilitated by technological developments and miniaturization of various devices. Thus, the purpose of the study is to evaluate wether GPS associated with accelerometer are able to assess the humain locomotion and energy expenditure during exercises.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Older than 18
  • Informed consent of the participant
  • Able to understand the protocol of the study
  • Register to the social health insurance
  • No exercise limitation

Exclusion criteria

  • No informed consent of the participant
  • pregnant woman

Treatment and study plan

GPS and accelerometer recording (s) during exercises

Other

Primary outcomes

  1. Defining optimal analysis parameter to accurately detect walking from stopping periods

    Time frame: up to 1 week

    Predefined walking protocols will be recorded and the subjects asked to follow recorded procedures.

    Detection performance of walking and resting bouts (expressed by the percentage accuracy in the detection of walking and resting bouts actually performed) for: i) GPS alone; ii) Accelerometer alone; iii) both GPS and accelerometer

Secondary outcomes

  1. Defining optimal analysis parameter to accurately detect speed and distance of periods of walking

    Time frame: up to 1 week

    Predefined walking protocols will be recorded and the subjects asked to follow recorded procedures at a defined walking pace.

    Accuracy of speed and distance estimations (expressed by the typical error of estimate and the coefficient of variation) from: i) GPS alone; ii) Accelerometer alone; iii) both GPS and accelerometer.

Other outcomes

  1. Determine the accuraccy of GPS and acceleropmetry to estimate energy expediture in healthy volunteers

    Time frame: up to 1 week

    Recording of VO2 real time with a portable analyser in parallel to GPS and accelerometry.

    Prediction (determined by the coefficient of determination from linear regression) of energy expenditure during level and grade outdoor walking and running from: i) GPS alone; ii) Accelerometer alone; iii) both GPS and accelerometer.

Sponsors and collaborators

Lead sponsor

University Hospital, Angers

Other Gov

Collaborators

  • Institut de Formation en Education Physique et en Sport d'Angers/Les Ponts de Cé
  • École Normale Supérieure de Cachan

Registry information

Official study title

Assessment of Human Locomotion and Energy Expenditure Using Global Positioning Satellite and Accelerometry

Acronym: ActiGPS

Important dates

Study start
2013
Primary completion
2016
Study completion
2016
First posted
Mar 6, 2013
Registry last updated
Nov 6, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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