Know and Own Your Movement-related Metrics Via Wearable Devices (Project KNOWN)

  • End date
    Dec 1, 2024
  • participants needed
  • sponsor
    The University of Texas at Arlington
Updated on 4 October 2022
hormone therapy
primary cancer


This study aims to promote daily physical activity in cancer survivors who are at high risk for type 2 diabetes (T2D) by using a personalized biological-based feedback strategy. T2D is one of the most common co-occurring conditions in cancer survivors and can worsen cancer-related health outcomes, especially in those who are insufficiently active. The investigators hypothesize that seeing the immediate impacts of exercise on their biological status will motivate cancer survivors to exercise. The investigators will use real-time data from continuous glucose monitor to demonstrate the acute impact of physical activity and measure daily activity levels using wearable trackers. As wearable sensor technology is constantly advancing, this study is the first step to exploring how researchers can use wearable sensors to help people make a direct connection between their daily behaviors and health outcomes.


Physical activity plays an important role in energy balance and obesity, which is an independent risk factor for cancer recurrence and mortality. It has been estimated that cancer survivors who increased their physical activity from pre- to post-diagnosis by any level had a 39% risk reduction in total mortality. This study will use an innovative approach to motivate cancer survivors to adopt and maintain an active lifestyle and will explore a novel mediator (daily glucose pattern) of the association between physical activity and cancer-related biomarkers. This study will provide data regarding the preliminary efficacy of using biological feedback to increase physical activity and identifying daily glucose patterns that might link to cancer-related biomarkers.

The overall goals for this study are: (1) to test the preliminary effect of a remotely delivered physical activity intervention that incorporates personalized biological-based feedback on daily physical activity levels, and (2) to explore the association between daily glucose patterns and cancer-related insulin pathway and inflammatory biomarkers in cancer survivors who are at high risk for type 2 diabetes.

Condition Cancer, Survivorship
Treatment Glucose monitoring, Glucose-based biofeedback, Standard feedback
Clinical Study IdentifierNCT05490641
SponsorThe University of Texas at Arlington
Last Modified on4 October 2022


Yes No Not Sure

Inclusion Criteria

be 18 years or older
have had a diagnosis of cancer
have completed curative-intended treatment for at least 3 months (except hormone therapy or long-term maintenance chemotherapy)
be at high-risk for type 2 diabetes based on the American Diabetes Association Type 2 Diabetes Risk Test
currently insufficiently active
capable of participating in moderate-vigorous intensity unsupervised exercise
have no current diagnosis or history of type 1 or 2 diabetes
able to speak, read, and write in English
have a smartphone with daily internet access

Exclusion Criteria

currently taking oral antidiabetic agents (OADs)
current treatment with any insulin regimen other than basal insulin, e.g. prandial or pre-mixed insulin
currently pregnant
on dialysis
have self-reported health issues that limit physical activity
work overnight shifts
unwilling to use the study devices
current participation in other exercise or weight loss-related program or intervention
currently on a low-carb diet
current use of other implanted medical devices such as pacemakers
do not have a smartphone that is compatible with the Fitbit and the LibreLink apps
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