Furthering the integration of fundamental discoveries from Part 1, Part 2 delves into the wider repercussions of these insights, exploring how the dual impact of fitness technology on motivation and social anxiety informs both user involvement and industry standards.

The primary research question driving this book is, How does fitness technolog y influence users’ physical self-concept and social physique anxiety in the context of regular fitness engagement?

This book aimed to explore the advantages of utilizing fitness apps and wearable devices for self-monitoring and goal-setting, as well as the possible psychological risks, particularly in terms of social comparison and body image-related anxiety.

The hypothesis posited that fitness technology could improve physical self-concept by fostering autonomy, competence, and relatedness, yet it might also elevate social physique anxiety by encouraging social comparison. Social Comparison Theory and Self-Determination Theory offer a dual framework for exploring this hypothesis: the former proposes that users’ body dissatisfaction and anxiety may increase through social comparison (Festinger, 1954), while the latter argues that intrinsic motivation and physical self-concept may improve as users achieve personalized fitness goals (Deci & Ryan, 1985; Ryan & Deci, 2020).

The results are consistent with the hypothesis, demonstrating that fitness technology has both empowering and harmful psychological impacts on users. Quantitative data indicated that elements promoting personal goalsetting and progress tracking improve physical self-concept (Marsh, 1996), often strengthening feelings of competence and satisfaction. Users expressed a sense of empowerment and motivation to maintain physical activity, supporting the constructive impact of feedback on improving physical self-perception (Codina et al., 2024).