Accuracy of activPAL Self-Attachment Methods |
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| Authors: | Nina L Kringen Genevieve N Healy Elisabeth A H Winkler |
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| Institution: | 1. School of Public Health, The University of Queensland, Brisbane, Queensland, Australia;2. Baker IDI Heart and Diabetes Institute, Melbourne, Australia;3. School of Physiotherapy, Curtin University, Perth, Australia |
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| Abstract: | This study examined the accuracy of self-attachment of the activPAL activity monitor. A convenience sample of 50 participants self-attached the monitor after being presented with written material only (WMO) and then written and video (WV) instructions; and completed a questionnaire regarding the acceptability of the instructional methods. Participants positioned the monitor lower than the instructed position on the thigh (WMO ?5.15 ± 2.75 cm, WV ?4.16 ± 2.15 cm; p = .008 difference) and approximately 2 cm laterally from the thigh midline (WMO 1.90 ± 0.92 cm; WV 2.08 ± 1.24 cm). The orientation of the device was positioned correctly along the midline (within < 1° of vertical). Acceptability was high for both instructional methods although preference was shown for the WV instruction. In conclusion, participants consistently self-attached the activPAL close to the intended placement with either instructional method. The addition of video instruction produced a slightly more accurate attachment and was preferred by the participants. |
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| Keywords: | instructional materials measurement sedentary behavior sitting |
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