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Intermonitor Variability of GT3X Accelerometer

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dc.contributor.author Santos-Lozano, Alejandro spa
dc.contributor.author Torres-Luque, Gema spa
dc.contributor.author Marín, Pedro J. spa
dc.contributor.author Ruiz, Jonatan R. spa
dc.contributor.author Lucía Mulas, Alejandro spa
dc.contributor.author Garatachea, Nuria spa
dc.date.accessioned 2013-11-27T17:26:43Z
dc.date.available 2013-11-27T17:26:43Z
dc.date.issued 2012 spa
dc.identifier.citation Santos-Lozano, A., Torres-Luque, G., Marín, P. J., Ruiz, J. R., Lucía-Mulas, A., & Garatachea, N. (2012). Intermonitor variability of GT3X accelerometer. International Journal of Sports Medicine, 33(12), 994-999. spa
dc.identifier.uri http://hdl.handle.net/11268/994
dc.description.abstract The main purpose of this study was to assess the inter-monitor reliability of the tri-axial GT3X Actigraph accelerometer over a range of physical activities (PA). This device collects motion data on each of the vertical (Y), horizontal right-left (X), and horizontal front-back (Z) axes and also calculates the vector summed value √X(2)+Y(2)+Z(2) known as 'vector magnitude' (VM). 8 GT3X accelerometers were worn at the same time by the same participant. Accelerometers were placed back-to-front, all facing forward and in sets of 4 securely taped together, attached to a belt and allocating each block above either left or right hip at waist level. Inter-monitor reliability was assessed during 6 conditions: rest, walking (4 and 6 km·h(-1)), running (8 and 10 km·h(-1)) and repeated sit-to-stand (40 times·min(-1)). The intra-class correlation coefficients were high for X, Y and Z axes (i.e., all ≥ 0.925) and for VM (≥ 0.946). In conclusion, we found good inter-instrument reliability of the GT3X accelerometer across all planes, yet our results also suggest that the X and Z axes do not provide further benefits over the 'traditional' Y-axis to assess the movement in typical PA. spa
dc.language.iso eng spa
dc.title Intermonitor Variability of GT3X Accelerometer spa
dc.type article spa
dc.description.impact 2.268 JCR (2012) Q1, 18/84 Sport Sciences spa
dc.identifier.doi 10.1055/s-0032-1312580 spa
dc.rights.accessRights openAccess en
dc.subject.unesco Deporte spa
dc.description.filiation UEM spa
dc.peerreviewed Si spa


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