Patients suffering from parkinsonism have respiratory function abnormalities. This study compared the effects of incentive spirometer and inspiratory muscle trainer on pulmonary functions in patients with parkinsonism.

The participants were recruited according to the inclusion and exclusion criteria. Participants were divided into two groups - incentive spirometer and inspiratory muscle trainer. These trainings were performed for 6 weeks duration. Several outcome measures related to pulmonary function tests were measured before and after the intervention.

Inclusion Criteria:

• Patients diagnosed as having Parkinsonism Disease by the Neuro physician.
• Duration of Parkinson's Disease ≥ 5 years.
• Patients with the age of 65 to 80 years.
• Hoen and Yahr classification within 1 to 3.
• Both males and females were included.
• Patients who were able to comprehend the commands.
• Patients who were willing to participate.

Exclusion Criteria:

• Patients having any cardiovascular and pulmonary disorders.
• History of smoking currently or in the past.
• Psychological Impairment.
• Insufficient verbal/intellectual understanding.
• Patients with unstable vital parameters.
• Those unable to perform pulmonary function tests (PFT) because of anatomical abnormalities or clinical signs of dementia.