The control group will be receive 45 minutes training sessions 3 times a week for 8 weeks; 2 days a week for home based balance training and 1 day for supervisory training with Bio-Dex Balance-System ®.

The training group will receive inspiratory muscle training; 15 minutes sessions 5 times a week for 8 weeks in addion to balance training same as control.

Respiratory muscle strengths will evalueted with inspiratory and expiratory mouth pressure devices.

Maximal inspiratory pressure (MIP) is the most widely used measure of respiratory muscle strength in patients with suspected respiratory muscle weakness. It is determined by measuring upper airway pressure (mouth for outpatients and trachea for intubated or tracheostomized patients) during a maximal voluntary inspiratory effort. The measured pressure is a composite of the pressure generated by the inspiratory muscles and the elastic recoil pressure of the lungs and chest wall.

Forced vital capacity (FVC) is the total amount of air exhaled during the FEV test. FVC can also help doctors assess the progression of lung disease and evaluate the effectiveness of treatment.

Forced expiratory volume (FEV) measures how much air a person can exhale during a forced breath. Forced expiratory volume and forced vital capacity are lung function tests that are measured during spirometry. Forced expiratory volume is the most important measurement of lung function. It is used to:

Diagnose obstructive lung diseases such as asthma and chronic obstructive pulmonary disease (COPD). A person who has asthma or COPD has a lower FEV1 result than a healthy person.

See how well medicines used to improve breathing are working. Check if lung disease is getting worse. Decreases in the FEV1 value may mean the lung disease is getting worse.

The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR), is a person's maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person's ability to breathe out air.

The Rivermead Mobility Index assesses functional mobility in gait, balance and transfers. The Rivermead Mobility Index is appropriate for a range of disabilities that include anything from being bedridden to being able to run 15 items:

14-self-reported items

1 direct observation item Items progress in difficulty Items are coded as either 0 or 1, depending on whether the patient can complete the task according to specific instructions Items receive a score of 0 for a "No" response and 1 for a "Yes" response Total scores are determined by summing the points for all items A maximum of 15 points is possible; higher scores indicate better mobility performance A score of "0" indicates an inability to perform any of the activities on the measure