Table 5. Ammonia levels during final cardiopulmonary exercise test.

	Pre	Post	2 h	4 h	6 h
Exercise group	116±69	149±89	116±59	123±50	113±57
Control group	103±48	197±93*	122±61**	129±52	124±51

CPET, cardiopulmonary exercise test.

Ammonia is expressed in mcg/dl. Mean±s.d.; *P=0.005 and **P=0.015 for the change between pre–post and post 2 h the CPET.