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Related Experiment Video

Updated: Jul 11, 2025

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

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Published on: March 7, 2019

Changes in Physical Activity Associated With a Multicomponent Weight-Loss Randomized Controlled Trial for Youth With

Richard K Fleming¹, Misha Eliasziw², Gretchen A Dittrich³

¹Department of Exercise and Health Sciences, University of Massachusetts Boston, Boston, MA, USA.

Adapted Physical Activity Quarterly : APAQ

|November 9, 2023

Summary

This summary is machine-generated.

Family-based behavioral interventions successfully increased physical activity (PA) in youth with intellectual disabilities. This approach shows promise for sustained PA improvements in this population.

Keywords:

accelerometry family-based behavioral intervention lifestyle maintenance physical activity intensity

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Area of Science:

Public Health
Pediatrics
Behavioral Science

Background:

Youth with intellectual disabilities exhibit significantly low levels of physical activity (PA).
Addressing low PA is crucial for managing weight and overall health in this demographic.
Behavioral interventions offer a potential strategy to improve PA levels.

Purpose of the Study:

To assess the effectiveness of a family-based behavioral intervention (FBBI) in increasing and sustaining PA in youth with intellectual disabilities.
To compare a maintenance intervention (FBBI-M) against a control group (FBBI-C) for long-term PA effects.

Main Methods:

Utilized accelerometry data from 21 youth (aged 14-22 years) with intellectual disabilities.
Participants underwent a 6-month FBBI, followed by either a 6-month maintenance intervention (FBBI-M) or no further intervention (FBBI-C).
Linear mixed models were employed to analyze PA changes over time and between groups.

Main Results:

During the FBBI, moderate to vigorous PA increased by 4.1 min/day and light PA by 24.2 min/day.
At 18 months, the FBBI-M group showed significantly higher moderate to vigorous PA (14.0 min/day, p = .005) compared to the FBBI-C group.
A trend towards increased light PA was observed in the FBBI-M group (47.4 min/day, p = .08).

Conclusions:

Behavioral interventions can effectively increase physical activity in youth with intellectual disabilities.
A maintenance phase following the initial intervention appears beneficial for sustaining PA gains.
These findings support the integration of targeted behavioral strategies to promote active lifestyles in this population.