Although it is known that the functions of pulmonary and upper limb is affected in late stage of Duchenne Muscular Dystrophy (DMD) negatively, the investigators do not have clear information about its early stage. The aim of this study was to investigate the differences in pulmonary and upper limb functions between children with DMD in early stage and healthy peers.

Inclusion Criteria:

children with DMD was;

• age between 5-10 years
• being on treatment with corticosteroids for more than 6 months
• being at Level I according to Brooke Upper and Lower Extremity Classification Systems

Healthy peers;

• age between 5-10 years
• not having any diagnosed disease

Exclusion Criteria:

• Children has undergo surgery and disease affect upper extremity or pulmonary function in last six months.

This study is gender based because Duchenne Muscular Dystrophy is only seen in males.

Fourty seven participants including 31 children with DMD and 16 healthy peers were included