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Table 4 Exercise induced bronchoconstriction during the study

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

Category Group Week 0 Week 2 Week 4 Week 8 p -value
% fall in FEV1 with exercise challenge Yoga (n = 29) 15.05 ± 14.0 8.81 ± 12.9 5.65 ± 12.9 5.18 ± 11.8 0.005
  Control (n = 28) 9.13 ± 10.8 9.50 ± 11.1 10.28 ± 10.9 5.81 ± 10.1 NS
ES subjects (≥ 15% fall in FEV1) Yoga (n = 13) 26.71 ± 12.7 13.33 ± 16.1 9.90 ± 14.5 7.95 ± 15.1 0.003
  Control (n = 9) 21.47 ± 6.4 8.83 ± 9.8 18.69* ± 8.2 12.71 ± 9.1 0.015
ER subjects (<15% fall in FEV1) Yoga (n = 16) 5.58 ± 5.1 5.13 ± 8.4 2.20 ± 10.6 2.93 ± 8.0 NS
  Control (n = 19) 3.29 ± 6.6 9.82 ± 11.9 6.31 ± 9.8 2.53 ± 9.0 NS
  1. All values are expressed as mean ± SD. ES – exercise sensitive; ER – exercise resistant.
  2. P-value was based on Friedman test applied on % fall in FEV1 after exercise challenge within each group separately.
  3. * Between groups comparisons were made by Mann-Whitney U test at individual visits, there was significant difference observed at 4 wk between groups in exercise-sensitive subjects (p = 0.025).