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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04142281
Other study ID # 17030190
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 13, 2018
Est. completion date July 5, 2018

Study information

Verified date October 2019
Source Children's Mercy Hospital Kansas City
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this study is to apply measurement error techniques on consumer devices to assess rate of energy storage [ES] and energy expenditure [EE], then estimate EI using the intake-balance technique. The goal of this study is to develop calibration models that will be able to be translated to other consumer devices with only minor modifications given common hardware (e.g. triaxial accelerometry), resulting in overall improved ability to assess energy balance and EI at a population level and positive health outcomes.


Description:

There are four stages in the proposed project: 1) We will validate EE and ES (hereafter, Fitbit_EE and Fitbit_ES) from a consumer physical activity monitor (Fitbit Alta HR™) and body composition analyzer (Fitbit Aria™) with gold-standard measures of DLW for EE and DXA for ES during a 14-day baseline period; 2) We will estimate EI using the intake-balance method during the 14-day baseline period; 3) We will calibrate daily Fitbit_EE and Fitbit_ES from consumer devices using a Bayesian semi-parametric measurement error modeling approach to estimate energy balance; 4) We will reassess our validation and calibration models of consumer devices during a 14-day post-study assessment period to evaluate changes associated with growth and development with gold-standard measures of DLW for EE and DXA for ES. Aims of the proposed study are to: Specific Aim 1. Validate and calibrate consumer devices to estimate energy balance using gold-standard methods and a Bayesian semi-parametric approach. Hypothesis 1: We will be able to jointly model measurement error for both EE and ES to create a calibration model that reduces bias and improves accuracy of consumer devices of EE and ES. Specific Aim 2. Estimate energy intake using the intake-balance technique using consumer monitors. Hypothesis 2:We will use calibrated EE and ES from consumer monitors to estimate EI using the intake-balance technique, with values being superior to self-reported EI.


Recruitment information / eligibility

Status Completed
Enrollment 24
Est. completion date July 5, 2018
Est. primary completion date July 5, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 8 Years to 90 Years
Eligibility Inclusion Criteria: - Healthy children and adults, aged 8-90. - Able to be physically active. Exclusion Criteria: - History of restrained eating, eating disorders, bariatric surgery, or other significant medical diagnosis that could impact metabolism. - Participants taking thyroid medications, beta blockers, or other stimulants (medications are known to affect metabolism).

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
United States Children's Mercy Kansas City Kansas City Missouri

Sponsors (2)

Lead Sponsor Collaborator
Children's Mercy Hospital Kansas City International Life Sciences Institute

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Energy intake Energy intake will be assessed subjectively via interviewer-administered dietary recalls. Three dietary recalls will occur on randomly selected non-consecutive days over each one-week treatment condition (including at least one weekend day) to minimize preparation that could bias recall by the participants. All interviews will be conducted over the telephone, will ask about all foods consumed over the previous 24 hours using a multi-pass approach, and energy intake will be calculated using the Nutrient Data System for Research software (NDSR Version 2014). 8 weeks
Secondary Energy expenditure Energy expenditure will be assessed using the doubly labelled water (DLW) technique over a two week period. 2 weeks
Secondary Body composition Assessment of body composition, including fat mass, fat free mass, and visceral adipose tissue, will be completed using dual energy X-ray absorptiometry (DXA). 8 weeks
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