Comparison of Diaphragmatic Stretch Technique and Manual Diaphragm Release Technique on Diaphragmatic Excursion in Chronic Obstructive Pulmonary Disease: A Randomized Crossover Trial

Table 1

Demographic data of participants.

Variable		Frequency
Age (66.85 ± 8.37)		20
Gender	male	12
	Female	8
Smoking history	yes	9
	No	11
COPD category	mild	11
	Moderate	9