Self-motivation and adherence to therapeutic exercise

Area of Science:

• Behavioral psychology
• Health psychology
• Psychometrics

Background:

• Behavioral compliance is a significant challenge in healthcare.
• Predicting patient dropout is essential for adherence facilitation.
• Self-motivation is conceptualized as a trait-like tendency to persevere.

Purpose of the Study:

• To develop and validate a scale for assessing self-motivation.
• To evaluate the reliability, validity, and predictive utility of the Self-Motivation Inventory (SMI).
• To determine if self-motivation predicts adherence to therapeutic exercise.

Main Methods:

• Scale refinement with 401 participants.
• Assessed internal consistency (alpha = 0.91) and scale stability over 1-5 months (r's = 0.86-0.92).
• Examined convergent and discriminant validity against other motivational measures.
• Tested predictive validity in exercise training, preventive medicine, and acute exercise settings.

Main Results:

• The Self-Motivation Inventory (SMI) demonstrated high internal consistency and stability.
• SMI showed significant correlations with ego-strength and specific attitudes, supporting construct validity.
• Minimal overlap with social desirability, locus of control, and achievement tendency confirmed discriminant validity.
• SMI effectively predicted perseverant behavior and adherence in diverse exercise settings.

Conclusions:

• The Self-Motivation Inventory (SMI) is a valid and reliable measure of self-motivation.
• Self-motivation is a stable, trait-like construct that predicts adherence to therapeutic exercise.
• The SMI offers a valuable tool for identifying individuals prone to dropout and enhancing adherence.