The efficacy of a comprehensive lifestyle modification programme based on yoga in the management of bronchial asthma: a randomized controlled trial

Table 5 Normalized values of Δ urinary 11β-PGF2α with exercise challenge

Category	Group	Week 0	Week 2	Week 4	Week 8	p - value ^a
% change in 11β-PGF2α excretion. (All subjects)	Yoga (n = 29)	17.6 ± 18.6	19.7 ± 24.7	14.7 ± 16.5	16.8 ± 19.7	0.49
	Control (n = 28)	16.6 ± 21.0	18.6 ± 22.0	16.3 ± 22.3	20.7 ± 23.5	0.84
ES subjects (mean ± SD)	Yoga (n = 13)	18.3 ± 22.2	20.4 ± 29.5	13.8 ± 16.8	12.3 ± 16.9	0.63
	Control (n = 9)	15.5 ± 21.2	13.3 ± 18.1	28.5 ± 16.3*	18.9 ± 8.2	0.11
ER subjects (mean ± SD)	Yoga (n = 16)	17.1 ± 15.9	19.0 ± 21.0	15.4 ± 16.8	20.4 ± 21.5	0.79
	Control (n = 19)	17.0 ± 21.5	21.1 ± 23.6	10.6 ± 22.8	21.6 ± 28.2	0.08

All values (normalized) are expressed as % change in 11β prostaglandin F2α excretion with exercise challenge (mean ± SD). ES – exercise sensitive; ER – exercise resistant subjects.
^a P-value was based on Friedman test in each group separately from % change in 11β-PGF2α with exercise.
*p < .05 based on Mann-Whitney U test at 4 wk between two groups.

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