In the rapidly changing field of fitness technology, understanding the role of motivational feedback is crucial for fostering user engagement and sustaining device usage. This study explores how affective, social, and informational feedback influence users' Basic Psychological Needs (BPNs) for autonomy, competence, and relatedness, using Structural Equation Modeling (AMOS) and fuzzy-set Qualitative Comparative Analysis (fsQCA). The findings reveal that affective and informational feedback significantly enhance autonomy and competence satisfaction, while social feedback has mixed effects, supporting autonomy but sometimes undermining relatedness through social comparisons. FsQCA highlights configurations of feedback types and psychological needs that promote sustained device usage, underscoring the need for tailored feedback strategies. The study also identifies frustration as a complex factor that, when combined with appropriate feedback and support mechanisms, can influence outcomes. These insights provide actionable recommendations for designing fitness technologies that balance emotional, informational, and social dimensions to encourage long-term user engagement. By integrating linear and configurational analyses, this research offers a comprehensive framework for improving motivational systems in fitness technology.
