Objectives: This study aimed to evaluate the relationship between activities of daily livings (ADLs) and psychological distress along with the quality of life (QOL) in Japanese adults with Duchenne muscular dystrophy. Patients and Methods: This study surveyed 36 adults using the Functional Independence Measure (FIM), the 36-Item Short-Form Health Survey (SF-36 v2) version 2.0, World Health Organization QOL-26, and Hospital Anxiety and Depression Scale. Results: No significant correlation was observed between the FIM scores and scores for all three scales (R < |0.2 | for every item).