Patients will be evaluated only observationally without intervention by foot posture index, north star ambulation assessment, timed performance tests, 6 minute walk test

The Foot Posture Index - 6 (FPI-6) was evaluated with each child standing and using the original protocol. FPI-6 values ranged from -2 to +2 for each of the six criteria and from -12 to +12 for the total score, indicative of position of each foot along the supinated to pronated continuum of foot posture.

Six Minute Walk Test was used commonly in DMD were found to be valid, reliable and easy to apply in the clinic. Children were asked to walk during 6 minutes as fast as they can at a corridor specified by two cones and walking distances were recorded as meter (m) for 6MWT. The time passed during timed performance tests were recorded as seconds.

Patients' ambulation will be evaluated with the North Star Ambulation Assessment (NSAA). The NSAA consists of 17 items and evaluates ambulation with functional activities such as walking, getting up from a chair, going up and down stairs, and running. Each item is scored in the range of 0-2 points and the total score is in the range of 0-34. High score indicates better ambulation status

Ascending-descending standard 4 steps, walking 10m, standing from lying position were used in order to assess the performance of children.The time passed during timed performance tests were recorded as seconds.