A Comparative study on efficacy of ventilator muscle strength training and ventilatory muscle endurance training on improving work capacity in COPD patients

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is defined as a disease characterized by progressive airflow limitation that is not fully reversible and is associated with an abnormal inflammatory response of lungs to noxious particles of gases primarily cigarette smoking. Chronic obstructive pulmonary disease (COPD), also known as chronic obstructive lung disease (COLD), chronic obstructive airway disease (COAD), chronic airway limitation (CAL) and chronic obstructive respiratory disease (CORD), refers to chronic bronchitis and emphysema, a pair of commonly co existent diseases of the lungs in which the airways become narrowed. Worldwide, Chronic obstructive pulmonary disease (COPD) ranked as the sixth leading cause of death in 1990. It is projected to be the fourth leading cause of death worldwide by 2030 due to an increasing smoking rates and demographic changes in many countries. Chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death in United States. Globally males are most commonly affected when compared to females. Chronic obstructive pulmonary disease (COPD) occurs in 34 out of 1000 people. In the most socio economically deprived parts of in the country, 1 in 32 people were diagnosed with chronic obstructive pulmonary disease (COPD), compared with 1 in 98 in the most affluent areas. OBJECTIVE: To compare the efficacy of Ventilatory muscle strength training with Ventilatory muscle endurance training on improving the work capacity in COPD patients. DESIGN: The study is a two group experimental study design with pre-test and post-test evaluation. METHOD: Sixty patients aged 30 to 55 years with COPD were selected on the basis of inclusion and exclusion criteria and assigned into two groups with 30 patients each, for control and experimental group based on non-probability purposive sampling technique. Control group received Ventilatory muscle strength training and experimental group received Ventilatory muscle endurance training for a period of 4 weeks. OUTCOME MEASURE: Modified Borg scale is used to evaluate the work capacity before and after the treatment. RESULTS: Statistical analysis done by using student ‘t’ test showed that there was significant improvement in patients who received Ventilatory muscle endurance training than patients who received ventilatory muscle strength training. CONCLUSION: Hence, it can be concluded that Ventilatory muscle endurance training shows significant improvement on work capacity than Ventilatory muscle strength training in COPD patients