New insights into compliance with a mobile phone diary and pedometer use in sedentary women.
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Date
2011-04-13
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Abstract
OBJECTIVES The purposes of this study were 1 to determine compliance with a pedometer and mobile phone based physical activity diary and 2 to assess concordance between self reported daily steps recorded and transmitted by a mobile phone and pedometer measured daily steps in sedentary women METHODS In this 3 week pilot clinical study 41 sedentary women who met all inclusion criteria were recruited from local communities We asked the participants to wear a pedometer every day and to report their daily steps using a mobile phone diary each night before retiring In the first week women were asked to monitor their daily steps baseline steps In the second and third weeks they were asked to increase their steps by 20 from the previous week Although the pedometer can automatically store the most recent 41 days performance the participants were not informed of this function of the pedometer RESULTS Overall compliance was 93 8 with pedometer use and 88 3 with the mobile phone physical activity diary Bland Altman plots showed that the agreement between self reported daily steps by mobile phone diary and pedometer recorded daily steps from week 1 to week 3 was high CONCLUSION The combination of a pedometer and a mobile phone diary may enhance the quality of self reported data in clinical studies
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Keywords
Women (only), Client, Quality/unreliability of data