Browsing by Author "Jong, So Son"
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- ItemInnovation to motivation--pilot study of a mobile phone intervention to increase physical activity among sedentary women.(2010-09-14) Fukuoka, Yoshimi; Vittinghoff, Eric; Jong, So Son; Haskell, WilliamOBJECTIVES This uncontrolled pilot study assessed changes in pedometer measured step counts and self reported physical activity during a 3 week mobile phone based intervention We also explored whether age BMI and psychosocial factors were associated with changes in step counts METHODS Forty one sedentary adult women in San Francisco California were asked to report their pedometer steps using a study supplied mobile phone from June to September 2008 In the second and third weeks daily prompts delivered by the mobile phone encouraged participants to increase steps by 20 from the previous week RESULTS Mean age was 48 years Average daily total steps increased by approximately 800 or 15 over three weeks pUnder0 001 Lower BMI no antidepressant use and lower self reported health status were associated with higher step counts at baseline Improvements in self reported will power were associated with increases in step counts pUnder0 001 Neither age p 0 55 nor BMI p 0 13 was significantly associated with changes in activity over the 3 weeks CONCLUSIONS The intervention appeared to motivate sedentary women to increase their physical activity A randomized controlled clinical trial is warranted and feasible
- ItemNew insights into compliance with a mobile phone diary and pedometer use in sedentary women.(2011-04-13) Fukuoka, Yoshimi; Kamitani, Emiko; Dracup, Kathleen; Jong, So SonOBJECTIVES 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