Validity of the Perceived Physical Ability Scale for Children: An Actigraphic Study

Area of Science:

• Pediatric Health
• Behavioral Science
• Biomedical Engineering

Background:

• Assessing children's perceived physical ability is crucial for understanding physical activity levels.
• Objective measurement of motor activity patterns is needed to validate self-report scales.
• The Perceived Physical Ability Scale for Children requires validation against objective data.

Purpose of the Study:

• To provide evidence for the validity of the Perceived Physical Ability Scale for Children.
• To compare the scale's scores with objective 24-hour motor activity patterns.
• To establish the scale's utility in evaluating physical activity interventions.

Main Methods:

• 107 children (mean age 10.25) participated in the study.
• Actigraphy (Actiwatch AW64) was used to record 24-hour motor activity for seven days.
• Functional Linear Modeling analyzed the relationship between the Perceived Physical Ability Scale for Children scores and motor activity patterns.

Main Results:

• A significant positive relationship was found between higher perceived physical ability and greater afternoon motor activity.
• The findings support the validity of the Perceived Physical Ability Scale for Children.
• The scale demonstrates potential as an outcome measure in physical activity interventions.

Conclusions:

• The Perceived Physical Ability Scale for Children is a valid measure when compared to objective actigraphy data.
• The scale effectively captures children's self-perceived physical capabilities.
• This scale shows promise for future research on physical activity promotion interventions in children.