Brisk walking as training for 4 weeks

Conventional Breathing exercise for 4 weeks

Brisk Walk: 20 min/day (The researchers found, for most people, brisk walking could be defined as moving at a pace of 2.7 miles per hour or 100 steps per minute for adults under about age 60 or guidelines define brisk walking as occurring when individuals move at a pace that increases their heart rate to about 70% of their heart rate maximum) Patient will also perform breathing exercises as given to Control group, Positioning (lean forward when needed) Percussion coughing when needed

Changes from the baseline, 6 min walk test was used to measure Functional capacity. It is a sub maximal exercise test which can aid in assessing functional capacity of patients with cardiopulmonary diseases, in this test we find out the maximum distance in meters which an individual covers in 6 min without any support.

Changes from the baseline, Maximal oxygen uptake or capacity is the maximum rate of oxygen consumed and measured during the stress activity. Its measurement within the laboratory demonstrates a numerical value for endurance fitness full stop and this value can be used to compare individuals training with or without diseases. This tool reflects cardiopulmonary endurance in the performance of any exercise. maximal oxygen consumption (VO2 max) is calculated by:

Mean Peak VO2 (ml/kg/Mean) = 4.948 + 0.023 *Mean 6MWD (meters)

6 minute walk distance (6MWD)

Changes from the baseline, It is usually administer the Health-Related Quality of Life scale verbally, reading the questions aloud and writing down respondents' answers.

The scale consists of three modules. The Core Healthy Days module contains one item that asks respondents to rate their general health on a 5-point scale (1 = excellent; 3 = good; 5 = poor). The module also has three items that ask respondents how many days their physical health was not good, their mental health was not good, and their health interfered with their daily activities.

It compute an unhealthy days score by adding the number of physically unhealthy and mentally unhealthy days. The maximum score is 30 unhealthy days, even if the number of unhealthy days totals more than 30.

Changes from the Baseline, the digital spirometer is used in clinical setting to analyze Forced Expiratory Volume in 1 second FEV1 in Liters

It is used to access the quality of life; SGRQ is used for determining quality of life in COPD patients. This questionnaire is designed in 50 items to check the impact of COPD. 0 to 100 is the range of this score. Scores having higher values means more limitations