Shape Up Kids Fitness Ancillary

Pennington Biomedical Research Center60 enrolled

Overview

The overall objective of this study is to quantify the decision-making process and underlying biases around leisure activity behaviors using the Activity Preference Assessment (APA), a novel psychological task. The investigators plan to validate the APA against objectively measured sedentary and physical activity time, and examine its potential to predict health-related outcomes in children and adolescents. The Shape Up Kids Fitness Ancillary protocol will add exercise testing, cognitive and behavioral measures, accelerometry, and questionnaires to the existing Shape Up Kids primary study dataset.

The investigators will enroll 60 boys and girls (50% female) between the ages of 8-17 years into this pilot and feasibility ancillary study. The aims of this study are to validate and test the reliability of the Activity Preference Assessment (APA), as described below. Aim 1: To examine the convergent validity of the APA against habitual physical and sedentary activity time measured objectively by seven days of accelerometry, as well as leisure activity choices during a 30-minute free-choice play period. Aim 2: To examine the criterion validity of the APA against concurrent measures of body composition, cardiometabolic health indicators, aerobic fitness, and physical strength. Aim 3: To measure the test-retest reliability of APA outcomes through repeated measures separated by approximately one week. Exploratory Aim: To investigate patterns or clusters of activity preferences through exploratory factor analysis of activity liking VAS scores.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Childhood Obesity

Eligibility

Sex: ALLMin age: 8 YearsMax age: 17 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Eligible for the Shape Up Kids primary study * Height ≥ 4 feet 8 inches * Body weight \< 350 lbs Exclusion Criteria: * American College of Sports Medicine (ACSM) contraindications to exercise testing (i.e., medical history of cardiovascular or pulmonary conditions, physical conditions that affect the ability to exercise)

Locations (1)

Pennington Biomedical Research Center

Baton Rouge, Louisiana, United States

Outcomes

Primary Outcomes

Time 1 APA bias scores

Bias scores are calculated from reaction times and choices made during the forced-choice section of the APA. Scores range from -100 to +100, with negative scores indicating a bias towards physical activities, and positive scores indicating a bias towards sedentary activities.

Time frame: Day 0 / Primary Study Visit

Time 2 APA bias scores

Time frame: 8-21 days after Primary Study Visit

Habitual physical and sedentary activity

Physical and sedentary activity time are measured for 24 hours per day over 7 consecutive days, including 2 weekend days, using ActiGraph GT3X+ accelerometers worn on the left mid-axillary line.

Time frame: 7 days between visits

Free-choice play period

Children will have 30 minutes to play freely in a room with a variety of sedentary and physical activity choices. Trained observers will record children's activity every 15 seconds.

Time frame: 8-21 days after Primary Study Visit

Secondary Outcomes

Cardiorespiratory fitness

Cardiorespiratory fitness, or VO2peak in mL/kg/min, is measured using a graded cycle ergometer test to volitional fatigue.

Time frame: 8-21 days after Primary Study Visit

Body composition 1

In the Shape Up Kids primary study, body composition is measured using bioelectrical impedance analysis (BIA).

Data from ClinicalTrials.gov

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