MET calculations from on-body accelerometers for exergaming movements

Bobak Mortazavi, Nabil Alsharufa, Sunghoon Ivan Lee, Mars Lan, Majid Sarrafzadeh, Michael Chronley, Christian K. Roberts

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

The use of accelerometers to approximate energy expenditure and serve as inputs for exergaming, have both increased in prevalence in response to the worldwide obesity epidemic. Exergames have a need to show energy expenditure values to validate their results, often using accelerometer approximations applied to general daily-living activities. This work presents a method for estimating the metabolic equivalent of task (MET) values achieved when users perform exergaming-specific movements. This shows the caloric expenditure achieved by active video games, based upon raw gravity values of accelerations. Results show that, while a fusion of sensors monitoring the entire body achieves the best results, sensors placed closest to the primary location of movement achieve the most accurate approximations to the METs achieved per activity as well as the overall MET achieved for the soccer exergame under consideration. The METs achieved approach 7, the value considered to be actual casual soccer game play.

Original languageEnglish (US)
Title of host publication2013 IEEE International Conference on Body Sensor Networks, BSN 2013
DOIs
StatePublished - Oct 1 2013
Event2013 IEEE International Conference on Body Sensor Networks, BSN 2013 - Cambridge, MA, United States
Duration: May 6 2013May 9 2013

Other

Other2013 IEEE International Conference on Body Sensor Networks, BSN 2013
CountryUnited States
CityCambridge, MA
Period5/6/135/9/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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