TY - JOUR
T1 - Goal feedback from whom? A physical activity intervention using an N-of-1 RCT
AU - Brannon, Erin E.
AU - Cushing, Christopher C.
AU - Walters, Ryan W.
AU - Crick, Christopher
AU - Noser, Amy E.
AU - Mullins, Larry L.
N1 - Funding Information:
This work was supported by National Science Foundation [1539070 and 1527828] and Society of Pediatric Psychology.
Publisher Copyright:
© 2017 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/6/3
Y1 - 2018/6/3
N2 - Objective: Adolescents are not meeting the recommended guidelines for physical activity. Social support and self-regulatory skills are two factors known to impact physical activity and sedentary behaviour. The study sought to examine how targeting feedback as part of a self-regulatory process could increase physical activity, and the individual who should be providing the feedback. Design: The study utilised an aggregated N-of-1 RCT which allows for an iterative process of intervention development, and examines variability within participants to answer the question for whom did the intervention work. Ten adolescents (ages 13–18) set a daily physical activity goal. Adolescents received a SMS text message providing feedback on goal attainment daily from a parent, peer, behavioural health specialist; or no text message (control). Main Outcome Measures: A bioharness heart rate monitor assessed heart rate as proxy for goal attainment. Adolescents also self-monitored their physical activity in the Calorie Counter and Diet Tracker by MyFitnessPalTM app (commercially available). Results: Intervention demonstrated a significant effect for 30% of the sample in increasing MVPA (Mincrease = 52 min), with no significant effect on sedentary behaviour. Conclusion: A single occasion of text messaging from the right person can produce changes, however, careful consideration should be given to who provides the feedback.
AB - Objective: Adolescents are not meeting the recommended guidelines for physical activity. Social support and self-regulatory skills are two factors known to impact physical activity and sedentary behaviour. The study sought to examine how targeting feedback as part of a self-regulatory process could increase physical activity, and the individual who should be providing the feedback. Design: The study utilised an aggregated N-of-1 RCT which allows for an iterative process of intervention development, and examines variability within participants to answer the question for whom did the intervention work. Ten adolescents (ages 13–18) set a daily physical activity goal. Adolescents received a SMS text message providing feedback on goal attainment daily from a parent, peer, behavioural health specialist; or no text message (control). Main Outcome Measures: A bioharness heart rate monitor assessed heart rate as proxy for goal attainment. Adolescents also self-monitored their physical activity in the Calorie Counter and Diet Tracker by MyFitnessPalTM app (commercially available). Results: Intervention demonstrated a significant effect for 30% of the sample in increasing MVPA (Mincrease = 52 min), with no significant effect on sedentary behaviour. Conclusion: A single occasion of text messaging from the right person can produce changes, however, careful consideration should be given to who provides the feedback.
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U2 - 10.1080/08870446.2017.1385783
DO - 10.1080/08870446.2017.1385783
M3 - Article
C2 - 28988493
AN - SCOPUS:85030840392
VL - 33
SP - 701
EP - 712
JO - Psychology and Health
JF - Psychology and Health
SN - 0887-0446
IS - 6
ER -