Applying P-Technique Factor Analysis to Explore Person-Specific Models of Readiness-to-Exercise

Area of Science:

• Exercise Science
• Psychology
• Sports Medicine

Background:

• Subjective experience and readiness are crucial for exercise prescription and monitoring.
• Readiness-to-exercise, encompassing pre-exercise mental and physical states, influences exercise intensity and outcomes.
• Current psychometric scales often use nomothetic (normative) approaches, potentially missing individual differences.

Purpose of the Study:

• To compare nomothetic and idiographic approaches for modeling the concept of readiness-to-exercise.
• To investigate whether individual readiness-to-exercise profiles differ from normative structures.

Main Methods:

• Study 1: Nomothetic approach using R-technique factor analysis on a one-time survey from 572 participants.
• Study 2: Idiographic approach using P-technique factor analysis on repeated measures (42-56 times) from 29 participants.

Main Results:

• The nomothetic approach identified a four-factor structure (health/fitness, fatigue, vitality, physical discomfort) explaining 60% of variance.
• Idiographic analyses revealed that most individuals exhibited unique readiness-to-exercise profiles with two or three factors, differing from the nomothetic model.
• Only two participants' personal signatures matched the four-factor nomothetic structure.

Conclusions:

• Individual readiness-to-exercise profiles (idiographic) often differ in structure from normative models (nomothetic).
• This highlights the need to consider personalized approaches in collecting and modeling experiential data for exercise research and practice.
• Findings prompt reevaluation of how subjective exercise data is assessed and applied in prescription and monitoring.