A balance disorder is a condition that makes you feel unsteady on your feet and dizzy. Dizziness is a general term for different symptoms of imbalance. Balance tests are a group of tests that check for balance disorders. Trunk control in NMD is impaired by progressive muscle weakness which is exacerbated by resulting inactivity. Given that the TCT has a good correlation with Balance is a complex motor skill that depends on interactions between multiple sensorimotor processes and environmental and functional contexts. This is a methodological research design this study is a correlation study design, which intends correlate the sitting balance and walking within the sample. All the subject performed trunk control test and follow the sitting balance scale and the results were observed for correlation with pre-specified functional activities performed by the subjects.Trunk control in NMD is impaired by progressive muscle weakness which is exacerbated by resulting inactivity. The most important finding of our study, in which we draw attention to the assessment of trunk control in NMD, is the fact that the TCT is a reliable and valid test which can yield results related to a patient’s functional level and guide clinicians during the clinical intervention period. The tools which we have used for the study is now validated and reliable.