Introduction The multidimensional concept of physical literacy (PL) is increasingly recognized as a holistic framework supporting lifelong physical activity. Although research is growing, empirical evidence remains limited and focused mainly on children and adolescents. In adults the relationship between subjectively measured (perceived) PL and objectively measured physical fitness tests is still unclear. The aim of this study was therefore to examine associations between overall and domain-specific perceived PL and multiple components of physical fitness in an adult population. Methods An exploratory cross-sectional study was conducted with 180 adults (60% women; mean age 40.71 ± 15.79 years), recruited during community-based physical activity education events in rural Austria. Perceived PL was assessed using the Perceived Physical Literacy Questionnaire (PPLQ), which captures six domains: motivation, confidence, physical competence, knowledge, understanding, and physical activity behavior. Physical fitness was evaluated through a series of field-based tests assessing cardiorespiratory fitness, muscular strength, flexibility of the upper and lower extremities, balance, and reaction time. Spearman correlation coefficients were calculated for the total sample and subsamples stratified by gender and age (45/ ≥ 45 years). In line with the exploratory nature of the study, interpretation focused exclusively on effect sizes following Cohen's conventions. Results Across all fitness parameters, the strongest correlations emerged for overall PL and the physical competence domain, followed by the physical activity behavior and confidence domains. In turn, the weakest correlations were observed for the motivation, knowledge, and understanding domains. Overall, correlations ranged predominantly from small-to-moderate, with notable variation across gender- and age-specific subgroups; in men and younger adults, correlations were generally stronger. Conclusion This study provides new insights into the relationship between overall/domain-specific perceived PL and physical fitness tests in the adult population, particularly regarding less commonly explored fitness parameters such as upper extremity flexibility, reaction time, and balance. Given the exploratory nature of the study, future research with larger, more diverse, and probability-based samples is needed to strengthen both the internal and external validity of these findings.
Holler et al. (Mon,) studied this question.