Clinical Trials Logo

Clinical Trial Summary

The aim of this research is to evaluate the efficacy of contextually tailored activity suggestions and activity planning for increasing physical activity among sedentary adults.


Clinical Trial Description

Physical activity is a key behavioral strategy for prevention of non-communicable diseases such as diabetes and heart disease. Mobile health (mHealth) interventions have shown promise for supporting physical activity adoption and maintenance in ways that are highly acceptable to users, scalable, and cost-efficient. This study examines two intervention strategies—contextually tailored activity suggestions and daily planning of the activity for the next day—that a mobile health intervention can use to encourage physical activity in sedentary adults.

Study participants use HeartSteps, an mHealth physical intervention developed by the research team, in their daily lives for six weeks. Over the course of the study both of the HeartSteps intervention components—contextually-tailored activity suggestions and activity planning—are micro-randomized for each participant on each of the day of the study, in order the effects on physical activity of each component separately and how those effects change over time.

The primary hypothesis for suggestions is that providing a contextually tailored activity suggestion increases participant step count over the subsequent 30 minutes following message delivery.

The first secondary hypothesis for suggestions is that the proximal effect of the contextually tailored activity suggestions on the subsequent 30-minute step count will decrease with duration in the study.

The primary hypothesis for planning is that receiving evening planning will increase step count on the following day.

The primary analyses will use the methods developed in Boruvka et al. (2017). The primary longitudinal outcome for activity suggestions will be the log of the step count in the 30 minutes subsequent to decision points. The log of the step count in the 30 minutes prior to randomization will be included as a control variable. The primary longitudinal outcome for planning will be the square root of the step count on the day following the randomization of planning treatment.

All missing but "available" minute-by-minute step counts from the wrist band will be imputed as 0. See "Allocation" section for the definition of availability. Sensitivity analyses using step counts from the mobile phone (secondary data source) will be conducted. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03225521
Study type Interventional
Source Kaiser Permanente
Contact
Status Completed
Phase N/A
Start date July 18, 2015
Completion date February 1, 2016

See also
  Status Clinical Trial Phase
Active, not recruiting NCT05661799 - Persistence of Physical Activity in People With Type 2 Diabetes Over Time. N/A
Active, not recruiting NCT03903874 - Testing Scalable, IVR-supported Cancer Prevention Interventions in the Rural Alabama Black Belt N/A
Recruiting NCT03662438 - HOPE (Home-based Oxygen [Portable] and Exercise) for Patients on Long Term Oxygen Therapy (LTOT) N/A
Withdrawn NCT04540523 - Home-Based Exergaming Intervention N/A
Recruiting NCT03250000 - Changes in Microcirculation and Functional Status During Exacerbation of COPD N/A
Recruiting NCT05563805 - Exploring Virtual Reality Adventure Training Exergaming N/A
Completed NCT03430648 - Is Tau Protein Linked to Mobility Function?
Completed NCT05019482 - Intervention Program Among University Student to Promote Physical Activity and Reduce the Sedentary Time N/A
Completed NCT03253406 - Health Wearables and College Student Health N/A
Not yet recruiting NCT05985460 - A Very Brief Intervention to Increase the Intention to Practice Physical Activity N/A
Completed NCT03380143 - Whole-of-Community Youth Population Physical Activity N/A
Completed NCT03700736 - The Healthy Moms Study: Comparison of a Post-Partum Weight Loss Intervention Delivered Via Facebook or In-Person Groups N/A
Completed NCT03170921 - Psychophysiological Characterization of Different Capoeira Performances in Experienced Individuals N/A
Completed NCT04973813 - Active Choice Intervention About Physical Activity for Physically Inactive Adults N/A
Completed NCT03982095 - Survey on Lifestyle, Perceived Barriers and Development of Change in Patients With Prostate Cancer
Completed NCT03271112 - Frailty Prevention in Elders From Reunion Island N/A
Completed NCT05670223 - Healthy Activities Improve Lives N/A
Completed NCT04894929 - Comprehensive Geriatric Assessment in the Monitoring of Functional Improvement N/A
Recruiting NCT04578067 - Empowering Immigrant Women for Active and Healthy Lifestyle N/A
Completed NCT03297567 - Physical Therapy Guidelines For Hospitalized Elderly N/A