Exploring the relationship between physical activity knowledge, health outcomes expectancies, and behavior

Area of Science:

• Behavioral Science
• Health Psychology
• Exercise Science

Background:

• Physical activity offers significant health benefits, yet a gap exists between knowing recommendations and engaging in recommended behaviors.
• Previous research struggled to establish a clear link between knowledge of physical activity guidelines and actual physical activity levels.

Purpose of the Study:

• To investigate if health outcome expectancies mediate the relationship between knowledge of physical activity recommendations and behavior.
• To explore the role of Expectancy Theory in understanding physical activity engagement.

Main Methods:

• A cross-sectional survey was employed to collect data.
• Participants' perceptions of necessary physical activity for health benefits were compared to perceived expert recommendations.
• The relationship between these perceptions and self-reported physical activity behaviors was analyzed using Expectancy Theory.

Main Results:

• A significant positive correlation was found between positive health outcome expectancies and reported physical activity.
• Individuals who believed they needed more physical activity than experts recommended reported higher levels of physical activity.
• This association held true across all measured self-reported physical activity behaviors (P < .001).

Conclusions:

• Health outcome expectancies, specifically the belief in needing more physical activity than recommended, are associated with increased physical activity.
• This expectancy appears to be a significant factor in achieving higher physical activity levels, irrespective of the activity's nature.
• Future interventions aiming to increase physical activity should consider targeting and modifying health outcome expectancies.